Compound Controller for DC Motor Servo System Based on Inner-Loop Extended State Observer

Size: px
Start display at page:

Download "Compound Controller for DC Motor Servo System Based on Inner-Loop Extended State Observer"

Transcription

1 BULGARIAN ACADEMY OF SCIENCES CYBERNETICS AND INFORMATION TECHNOLOGIES Volume 6, No 5 Special Issue o Applicatio of Advaced Computig ad Simulatio i Iformatio Systems Sofia 06 Prit ISSN: 3-970; Olie ISSN: DOI: 0.55/cait Compoud Cotroller for DC Motor Servo System Based o Ier-Loop Exteded State Observer Jigxia Yag Electrical Egieerig College of Northwest Uiversity for Natioalitie, Lazhou 73000, Chia yagjxia@6.com Abstract: As DC motor servo systems are more ad more widely applied i the maufacturig idustry ad aerospace domai, the requiremets o cotrol performace are icreased by the complicated various workig eviromets. With regard to the ucertaities icludig modelig error, parameter variatios ad exteral disturbaces i DC motor servo system, oe Noliear Exteded Disturbace Observer (NESO) is costructed, ad its output will be used as the desig referece of disturbace compesatio term i cotrol system. Based o the as-built NESO i ier loop, oe outer-loop compoud cotroller by meas of state-space desig method is proposed i order to realize the high-precisio positio trackig ability of the servo system. Computer simulatio results show that compared with covetioal cotrol schemes, the proposed cotrol scheme ca guaratee fewer trackig errors of DC motor servo system. Moreover, it possesses stroger robustess agaist system ucertaities icludig modelig error, parameter variatios ad frictio momet disturbace. Keywords: Motor servo system, Exteded State Observer (ESO), Active Disturbace Rejectio Cotrol (ADRC), compoud cotrol, robust cotrol.. Itroductio With the developmet of moder magetic material the rare earth alloy, which has bee successfully used i brushless DC motor, the motor respose speed, torque ad power/mass ratio have bee greatly improved []. Therefore, DC motor is widely used i may kids of high-precisio positio servo systems, icludig opto-electroic trackig system [], missile electro-mechaical actuator [3] ad electric flight simulator [4] ad so o. At the same time, the performace requiremets o DC motor servo system are becomig higher ad higher. However, due to the existece of ucertaities, icludig modelig errors, parameter perturbatios ad disturbace torques, the performace ehacemet of motor servo 37

2 system will be limited greatly [5, 6]. As a result, it is ecessary to explore some ew ad practical cotrol techologies for servo motor. Active Disturbace Rejectio Cotrol (ADRC) is such a techology that it ca estimate the curret system ucertaities i real time ad the compesate the same amout of cotrol quatity. This cotrol techology does ot eed accurate model iformatio ad it either does ot eed to assume that the model is liear or boud, therefore it ca deal with a large rage of ucertai systems [8-0]. I fact, the strog robust property of ADRC owes to the itroductio of Exteded State Observer (ESO), which ca estimate the curret ucertai dyamics of system more accurately ad the make compesatios to the cotrol system. Moreover, the cotrol system, after beig compesated, has the advatages of simple structure ad easy implemetatio. I this paper, a Noliear Exteded State Observer (NESO) is costructed to be applied i ier-loop cotrol of DC motor servo system, i order to esure the robust performace of cotrol system. I automatic cotrol systems, if a feedforward path is added to the feedback cotrol loop, a compoud cotrol system will be costructed. Whe the system parameters are chose properly (usually accordig to the ivariace priciple), the cotrol system is ot oly stable, but it also greatly reduces or eve elimiates the steady state error. Therefore, whe the compoud cotrol techology is applied i the positio servo system, it ca realize the high-speed ad high-precisio trackig for positio commad [, ]. To sum it up, the servo cotrol scheme, which is composed of ESO ad compoud cotroller, ca ot oly suppress the iflueces of exteral disturbaces ad parameters perturbatio, but also improve the positio trackig accuracy of servo system, which is the mai startig poit of this paper. The remaider of this paper is orgaized as follows. I Sectio, the mathematical modellig o DC motor servo system is carried out. I Sectio 3, accordig to the as-built model, the ier-loop NESO ad the outer-loop compoud cotroller are respectively desiged based o the dual-loop cotrol thought. Compared with the traditioal cotrol schemes, the performace advatages of the proposed cotrol scheme are verified by computer simulatio i Sectio 4. I additio, the correspodig coclusios are show i Sectio 5.. Problem descriptio A typical DC motor servo cotrol system is composed of servo cotroller, power amplifier, DC motor, loads, measurig elemets ad so o, ad its structure is show i Fig.. d + - Servo cotroller u Power amplifier DC motor Loads Measurig elemets Fig.. Structural diagram of DC motor servo system 38

3 where d, u ad θ deote the agle positio commad, servo cotroller output ad actual output agle of DC motor servo system, respectively. Cosiderig the existece of equivalet disturbace factors (icludig modelig errors, parameters perturbatio ad exteral disturbaces), ad assumig that the coectio betwee the motor ad the loads is rigid, the DC motor servo system ca be described as follows [, 3]: () J( t) B( t) u( t) d( t), where J 0 ad B 0 respectively deotig the equivalet momet of iertia ad the equivalet dampig coefficiet of the whole DC motor servo system; d deotes the equivalet disturbaces at the iput of servo system, ad it is assumed to be bouded, i.e., d M. Let x () t ad x () t respectively deote the actual agle ad the agular speed of DC motor servo system. The, the origial Equatio () ca be re-writte i the followig state-space expressio: x x, () B x x u( t) d( t). J J J Util ow, the mathematical model of DC motor servo system has bee established, ad it lays the basic foudatio for the ext desig of servo cotroller, which will be preseted i ext sectio. 3. Servo cotroller desig 3.. Ier-loop NESO desig If the equivalet disturbaces d i system () ca be estimated by meas of some observatio methods, ad the the same amout of compesatio is itroduced ito cotrol iput, the iflueces of equivalet disturbaces o cotrol system performace will be effectively suppressed. Based o this cotrol thought, a kid of NESO, which is used as the ier-loop cotroller of servo motor system, is costructed accordig to servo plat model (). I practical egieerig, the parameters (J ad B) of servo system ca be obtaied by meas of some measuremet or estimatio methods, ad their omial values will be used i the desig process. Based o this, Equatio () ca be rewritte as x x, (3) B x x u ( t ) d ( t ), J J where () d t deotes system ucertaities, which iclude modellig errors, parameters perturbatio ad exteral disturbaces, ad its expressio is show as follows: 39

4 B B (4) d ( t) u( t) x d( t). J J J J J Therefore, d() t ca be regarded as the state variable to be exteded, meawhile Equatio (4) provides the theoretical basis for verifyig the accuracy of disturbace estimatio i further simulatio. Aimig at the ucertai system (3), we put forward a costructio method of NESO, which is show as follows: (5) e zx, z = z 0e, B z z3 z u ( t ) fal e, a,, J J z3 fal e, a 4,, where z ad z are the estimatio variables with respect to state variables x ad x, respectively; z 3 is the estimatio variable with respect to ucertai variable d ; the other parameters are 0 0, 0, 3 0, a 0, 0. I additio, the oliear fuctio is defied as follows: e sg( e) if e, (6) fal e,, e if e. Therefore, the state z 3 of NESO will be used as the desig basis of disturbaces compesatio i the servo cotrol system. Furthermore, the term of disturbaces compesatio ca be desiged as (7) d ˆ( t ) J. z3 The, we ca get the correspodig ier-loop cotrol law dt ˆ( ). Moreover, the ier-loop cotrol structure based o NESO is show i Fig., where v deotes the output of outer-loop cotroller. d v -ˆ d u + Servo Motor Plat θ NESO 40 Fig.. Structural diagram of ier loop cotrol based o NESO Note that, the as-built NESO i this subsectio ca oly realize the robust performace of the ier-loop cotrol system, ad it caot guaratee the positio trackig fuctio of DC motor servo system. Therefore, a outer-loop cotroller based o the adjustmet of positio errors is also eeded, ad its desig process will be preseted i ext subsectio.

5 3.. Outer-loop compoud cotroller desig Accordig to the previous aalysis, the system () ca be rewritte as the followig form after itroducig the disturbaces compesatio from NESO: x x, (8) B ˆ B x x v( t) d( t) d ( t) x v( t). J J J J For the servo motor plat, we ca desig the outer-loop cotroller by usig compoud structure, that is, the combiatio of PD feedback cotrol ad feedforward cotrol, which is show i the followig diagram. s k3 s 4 k d - k v Servo plat + with NESO s k Fig. 3. NESO structural diagram of compoud cotrol I ext, the selectio priciple of the four cotrol coefficiets i Fig. 3 will be obtaied by usig the state-space desig method. T I the first, we defie the state variable x =[ x x], ad the rewritte Equatio (8) ito the geeral formatio of state space, which is show as follows: (9) x A x b vt ( ), where 0 0 A B, b 0. J J The, make the variable substitutio as follows: (0) xe = xd x, x d d d, where d deotes the agular speed commad of DC motor servo system. As a result, the equivalet system correspodig to (9) ca be described as () x A x b v () t, e e where () v ( )= ( ) t v t J d Bd. Moreover, d deotes the agular acceleratio commad of DC motor servo system. Therefore, the trackig problem of the origial system (9) will evolve ito the regulatio problem of the equivalet system (), which ca greatly simplify the desig process [3]. Aimig at the equivalet system (), we ca desig the feedback cotrol law as follows: T 4

6 ( )= kxe x e. Accordig to the theory of pole assigmet, the selectio priciple of the feedback cotroller coefficiets ca be obtaied. That is, by choosig the appropriate state feedback gai vector k, we make all the eigevalues of matrix (3) v t k k A bk possess egative real parts. I additio, because the equivalet system ( A, b ) is cotrollable, we ca assig the locatios of its eigevalues to ay desired positios. Accordig to Equatios ()-(3), the output of outer-loop cotroller ca be described as (4) v() t kx e J d Bd. Accordig to the block diagram of compoud cotrol system, the basis for coefficiets selectio of the feedforward cotroller ca be obtaied as: J (5) k3 B, k4. B I summary, for the DC motor servo system (), the cotrol law cosists of two parts, which ca be expressed as follows accordig to Equatios (7) ad (4): (6) u( t) v( t) dˆ ( t) kx e J d Bd J z3. Util ow, the robust cotroller has bee completed for DC motor servo system, ad the ext sequel will carry out computer simulatio i order to verify its effectiveess. 4. Simulatio results I this sectio, we will compare the cotrol effects of the proposed scheme with the traditioal PD scheme ad PD+NESO scheme by usig computer simulatio, ad the the performace advatages of the proposed cotrol scheme ca be obtaied. I simulatio, the actual plat parameters of DC motor servo system are show as J = 0.00 N.s per, B = 0.55 N.s per. I cosideratio of the fact that there must exist some modelig errors i practical egieerig, the values of omial parameter are chose as: J = 0.00 N.s per, B = 0.05 N.s per. I additio, the iflueces of Coulomb frictio torque ad plat parameters perturbatio are added i DC motor servo cotrol system, meawhile the equivalet disturbaces caused by the above two factors are 3.0sg( ) ad.0cos(π t ), respectively. Assumig that the iitial agle positio of motor servo system is set as 0., the iitial agular velocity is set as zero. At the same time, the maximum value of servo cotroller output is 0 V. The correspodig coefficiets of PD cotroller are: k =3.0, k =0.5. The correspodig coefficiets of feedforword cotroller are: k =0.05, k =

7 The correspodig coefficiets of NESO are: 0 000, 0000, , a, 0.0. I the simulatio, a composite sigal is selected as the positio trackig commad of motor servo system, as show i Fig Positio commad( ) Time (s) Fig. 4. Curve of positio trackig commad Takig the composite sigal as the iput commad, the positio trackig errors of motor servo systems uder the three cotrol schemes are compared i the followig, as show i Fig PD scheme PD+NESO scheme The proposed scheme Trackig errors ( ) Time (s) Fig. 5. Curves of positio trackig errors of motor servo systems uder the three cotrol schemes As ca be see from Fig. 5, whe NESO is itroduced ito the traditioal PD cotrol scheme, that is the PD+NESO cotrol scheme is formed, the trackig errors of motor servo system ca be sigificatly reduced compared with traditioal PD cotrol scheme. This reflects the robust property of as-built NESO agaist system ucertai dyamics. Furthermore, whe the compoud cotroller is itroduced, that 43

8 is the proposed cotrol scheme is formed, the trackig errors of motor servo system will be greatly reduced, which reflects its effectiveess to improve the trackig accuracy of servo motor. I fact, the robustess of NESO comes from its real-time ad accurate estimatio o system ucertai dyamics. I order to verify this poit, the state variable z 3 of NESO used to estimate the exteded variable (Fig. 6). 8 6 Positio commad( ) Time (s) Fig. 6. Estimatio curve about exteded variable by usig NESO As ca be see from Fig. 6, the state variable z 3 of NESO ca estimate the exteded variable d real-timely ad accurately. Because the exteded variable is the real reflectio of the system dyamics, the ier-loop cotroller based o NESO ca effectively compesate the effect of ucertai dyamics o system performace, which further esures the validity of the proposed cotrol scheme. At the same time, the cotrol quatity of motor servo system uder the proposed cotrol scheme is preseted i Fig Cotrol quatity (V) Time (s) Fig. 7. Curve of cotrol quatity of motor servo system As see i Fig. 7, the cotrol quatities of DC motor servo system are relatively smooth, which avoids the iflueces of high-frequecy chatterig o system stability ad the damage to the mechaical structure. Therefore, it ehaces the practical value of the cotrol scheme proposed i this paper.

9 5. Coclusios I view of DC motor servo system, this paper presets a double loop servo cotroller, which is based o the combiatio of a ier-loop NESO ad a outerloop compoud cotroller, ad it ca esure the stable, fast ad accurate positio trackig performace of DC motor. At the same time, the desiged NESO ca deal with a large rage of ucertai dyamics i cotrol system, icludig modellig errors, parameters perturbatio, exteral disturbaces ad so o, which ca esure the proposed cotrol scheme possess strog robustess. Simulatio results show that, the proposed cotrol scheme has a better positio trackig performace compared with the traditioal cotrol schemes. I additio, its structure is simple ad easy to be implemeted i practice, ad the experimetal verificatio will be give i future works. R e f e r e c e s. L i, F. X., W. J. Zhu. Research ad Applicatio of Dual-Mode Operatio Techology of Brushless DC Motor. [J], Vol. 7, 03, No 3, pp (i Chiese).. Re, Y., Z. H. Liu, R. Z h o u. Applicatio of Low Speed Opto-Electroic Trackig Systems Based o Slidig Mode Distutbace Observer. Joural of Beijig Uiversity of Aeroautics ad Astroautics, Vol. 39, 03, No 6, pp (i Chiese). 3. Liu, X. D., Y. J. W u, Y. D e g et al. A Global Slidig Mode Cotroller for Missile Electromechaical Actuator Servo System. Proc. IMechE. Part G: Joural of Aerospace Egieerig, Vol. 8, 04, No 7, pp Niu, J. J., Y. L. F u, S. H. Liu. Ier Axis Cotrol with Frictio Compesatio for High Precisio Flight Motio Simulator. Vol., 008, No 5, pp (i Chiese). 5. C h o i, H. S., Y. H. P a r k, Y. S. Cho et al. Global Slidig Mode Cotrol Improved Desig for a Brushless DC Motor. IEEE Cotrol Systems Magazie, Vol., 00, No 3, pp Kim, B. K., W. K. C h u g, K. O h b a. Desig ad Performace Tuig of Slidig-Mode Cotroller for High-Speed ad High-Accuracy Positioig Systems i Disturbace Observer Framework. IEEE Trasactios o Idustrial Electroics, Vol. 56, 009, No 0, pp Ha, J. Q. Active Disturbace Rejectio Cotrol Techique-the Techique for Estimatig ad Compesatig the Ucertaities. Beijig, Natioal Defese Idustry Press, 007 (i Chiese). 8. Xia, Y., P. Shi, G. Liu. Active Disturbace Active Cotrol for Ucertai Multivariable Systems with Time-Delay. IET Cotrol Theory ad Applicatio, Vol., 007, No, pp Guo, B. Z., F. F. Ji. Slidig Mode ad Active Disturbace Rejectio Cotrol to Stabilizatio of Oe-Dimesioal Ati-Stable Wave Equatios Subject to Disturbace i Boudary Iput. IEEE Trasactios o Automatic Cotrol, Vol. 58, 03, No 5, pp Guo, B. Z., F. F. Ji. The Active Disturbace Rejectio ad Slidig Mode Cotrol Approach to the Stabilizatio of Euler Euler-Beroulli Beam Equatio with Boudary Iput Disturbace. Automatica, Vol. 49, 03, No 9, pp Liu, H., W. Gao. Study of the Feedforward Frictio Compesatio i Servo System. Sciece Techology ad Egieerig, 007, No 4, pp (i Chiese).. D i g, Q. Q. Techical Study of Compoud Cotrol about the Radar of Ship-Bore. Sciece Techology ad Egieerig, Vol. 3, 03, No 5, pp (i Chiese). 45

Application of Improved Genetic Algorithm to Two-side Assembly Line Balancing

Application of Improved Genetic Algorithm to Two-side Assembly Line Balancing 206 3 rd Iteratioal Coferece o Mechaical, Idustrial, ad Maufacturig Egieerig (MIME 206) ISBN: 978--60595-33-7 Applicatio of Improved Geetic Algorithm to Two-side Assembly Lie Balacig Ximi Zhag, Qia Wag,

More information

Radar emitter recognition method based on AdaBoost and decision tree Tang Xiaojing1, a, Chen Weigao1 and Zhu Weigang1 1

Radar emitter recognition method based on AdaBoost and decision tree Tang Xiaojing1, a, Chen Weigao1 and Zhu Weigang1 1 Advaces i Egieerig Research, volume 8 d Iteratioal Coferece o Automatio, Mechaical Cotrol ad Computatioal Egieerig (AMCCE 7) Radar emitter recogitio method based o AdaBoost ad decisio tree Tag Xiaojig,

More information

Data Acquisition System for Electric Vehicle s Driving Motor Test Bench Based on VC++ *

Data Acquisition System for Electric Vehicle s Driving Motor Test Bench Based on VC++ * Available olie at www.sciecedirect.com Physics Procedia 33 (0 ) 75 73 0 Iteratioal Coferece o Medical Physics ad Biomedical Egieerig Data Acquisitio System for Electric Vehicle s Drivig Motor Test Bech

More information

DIGITALLY TUNED SINUSOIDAL OSCILLATOR USING MULTIPLE- OUTPUT CURRENT OPERATIONAL AMPLIFIER FOR APPLICATIONS IN HIGH STABLE ACOUSTICAL GENERATORS

DIGITALLY TUNED SINUSOIDAL OSCILLATOR USING MULTIPLE- OUTPUT CURRENT OPERATIONAL AMPLIFIER FOR APPLICATIONS IN HIGH STABLE ACOUSTICAL GENERATORS Molecular ad Quatum Acoustics vol. 7, (6) 95 DGTALL TUNED SNUSODAL OSCLLATOR USNG MULTPLE- OUTPUT CURRENT OPERATONAL AMPLFER FOR APPLCATONS N HGH STABLE ACOUSTCAL GENERATORS Lesław TOPÓR-KAMŃSK Faculty

More information

MEASUREMENT AND CONTORL OF TOTAL HARMONIC DISTORTION IN FREQUENCY RANGE 0,02-10KHZ.

MEASUREMENT AND CONTORL OF TOTAL HARMONIC DISTORTION IN FREQUENCY RANGE 0,02-10KHZ. ELECTRONICS 00 September, Sozopol, BLGARIA MEASREMENT AND CONTORL OF TOTAL HARMONIC DISTORTION IN FREQENCY RANGE 0,0-0KHZ. Plame Agelov Agelov Faculty for Computer Sciece, Egieerig ad Natural Studies,

More information

Measurement of Equivalent Input Distortion AN 20

Measurement of Equivalent Input Distortion AN 20 Measuremet of Equivalet Iput Distortio AN 2 Applicatio Note to the R&D SYSTEM Traditioal measuremets of harmoic distortio performed o loudspeakers reveal ot oly the symptoms of the oliearities but also

More information

A New Space-Repetition Code Based on One Bit Feedback Compared to Alamouti Space-Time Code

A New Space-Repetition Code Based on One Bit Feedback Compared to Alamouti Space-Time Code Proceedigs of the 4th WSEAS It. Coferece o Electromagetics, Wireless ad Optical Commuicatios, Veice, Italy, November 0-, 006 107 A New Space-Repetitio Code Based o Oe Bit Feedback Compared to Alamouti

More information

Importance Analysis of Urban Rail Transit Network Station Based on Passenger

Importance Analysis of Urban Rail Transit Network Station Based on Passenger Joural of Itelliget Learig Systems ad Applicatios, 201, 5, 22-26 Published Olie November 201 (http://www.scirp.org/joural/jilsa) http://dx.doi.org/10.426/jilsa.201.54027 Importace Aalysis of Urba Rail

More information

Experimental Noise Analysis of Reed Switch Sensor Signal under Environmental Vibration

Experimental Noise Analysis of Reed Switch Sensor Signal under Environmental Vibration Computer Techology ad Applicatio 7 (16) 96-1 doi: 1.1765/1934-733/16..4 D DAVID PUBLISHING Experimetal Noise Aalysis of Reed Switch Sesor Sigal uder Evirometal Vibratio Odgerel Ayurzaa 1 ad Hiesik Kim

More information

An Adaptive Image Denoising Method based on Thresholding

An Adaptive Image Denoising Method based on Thresholding A Adaptive Image Deoisig Method based o Thresholdig HARI OM AND MANTOSH BISWAS Departmet of Computer Sciece & Egieerig Idia School of Mies, Dhabad Jharkad-86004 INDIA {hariom4idia, matoshb}@gmail.com Abstract

More information

PROJECT #2 GENERIC ROBOT SIMULATOR

PROJECT #2 GENERIC ROBOT SIMULATOR Uiversity of Missouri-Columbia Departmet of Electrical ad Computer Egieerig ECE 7330 Itroductio to Mechatroics ad Robotic Visio Fall, 2010 PROJECT #2 GENERIC ROBOT SIMULATOR Luis Alberto Rivera Estrada

More information

The Firing Dispersion of Bullet Test Sample Analysis

The Firing Dispersion of Bullet Test Sample Analysis Iteratioal Joural of Materials, Mechaics ad Maufacturig, Vol., No., Ma 5 The Firig Dispersio of Bullet Test Sample Aalsis Youliag Xu, Jubi Zhag, Li Ma, ad Yoghai Sha Udisputed, this approach does reduce

More information

Available online at Procedia Engineering 7 (2010) Procedia Engineering 00 (2010)

Available online at   Procedia Engineering 7 (2010) Procedia Engineering 00 (2010) Aailable olie at www.sciecedirect.com Procedia Egieerig 7 (2) 442 446 Procedia Egieerig (2) Procedia Egieerig www.elseier.com/locate/procedia www.elseier.com/locate/procedia 2 Smposium o Securit Detectio

More information

WSN Node Localization Regularization Algorithm Based on Quasi Optimal Criterion Parameter Selection

WSN Node Localization Regularization Algorithm Based on Quasi Optimal Criterion Parameter Selection Sesors & rasducers Vol. 23 Special Issue July 203 pp. 94-98 Sesors & rasducers 203 by IFSA http://www.sesorsportal.com WSN Node Localizatio Regularizatio Algorithm Based o Quasi Optimal Criterio Parameter

More information

Outline. Motivation. Analog Functional Testing in Mixed-Signal Systems. Motivation and Background. Built-In Self-Test Architecture

Outline. Motivation. Analog Functional Testing in Mixed-Signal Systems. Motivation and Background. Built-In Self-Test Architecture Aalog Fuctioal Testig i Mixed-Sigal s Jie Qi Dept. of Electrical & Computer Egieerig Aubur Uiversity Co-Advisors: Charles Stroud ad Foster Dai Outlie Motivatio ad Backgroud Built-I Self-Test Architecture

More information

AC : USING ELLIPTIC INTEGRALS AND FUNCTIONS TO STUDY LARGE-AMPLITUDE OSCILLATIONS OF A PENDULUM

AC : USING ELLIPTIC INTEGRALS AND FUNCTIONS TO STUDY LARGE-AMPLITUDE OSCILLATIONS OF A PENDULUM AC 007-7: USING ELLIPTIC INTEGRALS AND FUNCTIONS TO STUDY LARGE-AMPLITUDE OSCILLATIONS OF A PENDULUM Josue Njock-Libii, Idiaa Uiversity-Purdue Uiversity-Fort Waye Josué Njock Libii is Associate Professor

More information

A New Design of Log-Periodic Dipole Array (LPDA) Antenna

A New Design of Log-Periodic Dipole Array (LPDA) Antenna Joural of Commuicatio Egieerig, Vol., No., Ja.-Jue 0 67 A New Desig of Log-Periodic Dipole Array (LPDA) Atea Javad Ghalibafa, Seyed Mohammad Hashemi, ad Seyed Hassa Sedighy Departmet of Electrical Egieerig,

More information

A SELECTIVE POINTER FORWARDING STRATEGY FOR LOCATION TRACKING IN PERSONAL COMMUNICATION SYSTEMS

A SELECTIVE POINTER FORWARDING STRATEGY FOR LOCATION TRACKING IN PERSONAL COMMUNICATION SYSTEMS A SELETIVE POINTE FOWADING STATEGY FO LOATION TAKING IN PESONAL OUNIATION SYSTES Seo G. hag ad hae Y. Lee Departmet of Idustrial Egieerig, KAIST 373-, Kusug-Dog, Taejo, Korea, 305-70 cylee@heuristic.kaist.ac.kr

More information

Problem of calculating time delay between pulse arrivals

Problem of calculating time delay between pulse arrivals America Joural of Egieerig Research (AJER) 5 America Joural of Egieerig Research (AJER) e-issn: 3-847 p-issn : 3-936 Volume-4, Issue-4, pp-3-4 www.ajer.org Research Paper Problem of calculatig time delay

More information

Multisensor transducer based on a parallel fiber optic digital-to-analog converter

Multisensor transducer based on a parallel fiber optic digital-to-analog converter V Iteratioal Forum for Youg cietists "pace Egieerig" Multisesor trasducer based o a parallel fiber optic digital-to-aalog coverter Vladimir Grechishikov 1, Olga Teryaeva 1,*, ad Vyacheslav Aiev 1 1 amara

More information

CFAR DETECTION IN MIMO RADARS USING FUZZY FUSION RULES IN HOMOGENEOUS BACKGROUND

CFAR DETECTION IN MIMO RADARS USING FUZZY FUSION RULES IN HOMOGENEOUS BACKGROUND CFAR DETECTION IN MIMO RADARS USING FUZZY FUSION RULES IN HOMOGENEOUS BACKGROUND Faycal Khaldi 1 ad Faouzi Soltai 2 1,2 Départemet d électroique, Uiversité des Frères Metouri Costatie Costatie 25, Algeria

More information

X-Bar and S-Squared Charts

X-Bar and S-Squared Charts STATGRAPHICS Rev. 7/4/009 X-Bar ad S-Squared Charts Summary The X-Bar ad S-Squared Charts procedure creates cotrol charts for a sigle umeric variable where the data have bee collected i subgroups. It creates

More information

WAVE-BASED TRANSIENT ANALYSIS USING BLOCK NEWTON-JACOBI

WAVE-BASED TRANSIENT ANALYSIS USING BLOCK NEWTON-JACOBI WAVE-BASED TRANSIENT ANALYSIS USING BLOCK NEWTON-JACOBI Muhammad Kabir McGill Uiversity Departmet of Electrical ad Computer Egieerig Motreal, QC H3A 2A7 Email: muhammad.kabir@mail.mcgill.ca Carlos Christofferse

More information

Simulation and Analysis on Signal Acquisition of BDS Receiver with The Aid of INS

Simulation and Analysis on Signal Acquisition of BDS Receiver with The Aid of INS Modelig Simulatio ad Optimizatio Techologies ad Applicatios (MSOTA 2016 Simulatio ad Aalysis o Sigal Acquisitio of DS Receiver with The Aid of INS Shulei Che Xiaqig Tag Xuwei Cheg Juqiag Gao ad Zepeg Su

More information

Fingerprint Classification Based on Directional Image Constructed Using Wavelet Transform Domains

Fingerprint Classification Based on Directional Image Constructed Using Wavelet Transform Domains 7 Figerprit Classificatio Based o Directioal Image Costructed Usig Wavelet Trasform Domais Musa Mohd Mokji, Syed Abd. Rahma Syed Abu Bakar, Zuwairie Ibrahim 3 Departmet of Microelectroic ad Computer Egieerig

More information

KMXP SERIES Anisotropic Magneto-Resistive (AMR) Linear Position Sensors

KMXP SERIES Anisotropic Magneto-Resistive (AMR) Linear Position Sensors SERIES Aisotropic Mageto-Resistive (AMR) Liear Positio Sesors Positio sesors play a icreasigly importat role i may idustrial, robotic ad medical applicatios. Advaced applicatios i harsh eviromets eed sesors

More information

Combined Scheme for Fast PN Code Acquisition

Combined Scheme for Fast PN Code Acquisition 13 th Iteratioal Coferece o AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 6 8, 009, E-Mail: asat@mtc.edu.eg Military Techical College, Kobry Elkobbah, Cairo, Egypt Tel : +(0) 4059 4036138, Fax:

More information

Calibrating Car-following Model with Trajectory Data by Cell Phone

Calibrating Car-following Model with Trajectory Data by Cell Phone Calibratig Car-followig Model with Trajectory Data by Cell Phoe Jiag Zeyu 1 jiagzy15@mails.tsighua.edu.c Wag Yog 3 13006373891@qq.com Wag Gagqiao 1 wag-gq15@mails.tsighua.edu.c Zhag Xiagpeg 3 364386058@qq.com

More information

History and Advancement of the Family of Log Periodic Toothed Planer Microstrip Antenna

History and Advancement of the Family of Log Periodic Toothed Planer Microstrip Antenna Joural of Electromagetic Aalysis ad Applicatios, 2011, 3, 242-247 doi:10.4236/jemaa.2011.36039 Published Olie Jue 2011 (http://www.scirp.org/joural/jemaa) History ad Advacemet of the Family of Log Periodic

More information

Faulty Clock Detection for Crypto Circuits Against Differential Faulty Analysis Attack

Faulty Clock Detection for Crypto Circuits Against Differential Faulty Analysis Attack Faulty Clock Detectio for Crypto Circuits Agaist Differetial Faulty Aalysis Attack Pei uo ad Yusi Fei Departmet of Electrical ad Computer Egieerig Northeaster Uiversity, Bosto, MA 02115 Abstract. Differetial

More information

(2) The MOSFET. Review of. Learning Outcome. (Metal-Oxide-Semiconductor Field Effect Transistor) 2.0) Field Effect Transistor (FET)

(2) The MOSFET. Review of. Learning Outcome. (Metal-Oxide-Semiconductor Field Effect Transistor) 2.0) Field Effect Transistor (FET) EEEB73 Electroics Aalysis & esig II () Review of The MOSFET (Metal-Oxide-Semicoductor Field Effect Trasistor) Referece: Neame, Chapter 3 ad Chapter 4 Learig Outcome Able to describe ad use the followig:

More information

Inertial Technology For North Finding Steve Clarke, Applications Engineer.

Inertial Technology For North Finding Steve Clarke, Applications Engineer. Iertial Techology For North Fidig Steve Clarke, Applicatios Egieer. December 2013 To be the leadig provider of affordable, high performace, high itegrity MEMS iertial products ad foudry services 2 Cotets

More information

HB860H 2-phase Hybrid Servo Drive

HB860H 2-phase Hybrid Servo Drive HB860H 2-phase Hybrid Servo Drive 20-70VAC or 30-100VDC, 8.2A Peak No Tuig, Nulls loss of Sychroizatio Closed-loop, elimiates loss of sychroizatio Broader operatig rage higher torque ad higher speed Reduced

More information

A Series Compensation Technique for Enhancement of Power Quality Isolated Power System Venkateshwara Rao R K.Satish Babu

A Series Compensation Technique for Enhancement of Power Quality Isolated Power System Venkateshwara Rao R K.Satish Babu A Series Compesatio Techique for Ehacemet of Power Quality Isolated Power System ekateshwara Rao R K.Satish Babu PG Studet [P.E], Dept of EEE, DR & DR. H S MIC College of Tech, A.P, Idia Assistat Professor,

More information

OPTIMIZATION OF RNS FIR FILTERS FOR 6-INPUTS LUT BASED FPGAS

OPTIMIZATION OF RNS FIR FILTERS FOR 6-INPUTS LUT BASED FPGAS OPTIMIZATION OF RNS FIR FILTERS FOR 6-INPUTS LUT BASED FPGAS G.C. Cardarilli, M. Re, A. Salsao Uiversity of Rome Tor Vergata Departmet of Electroic Egieerig Via del Politecico 1 / 00133 / Rome / ITAL {marco.re,

More information

Intelligent IMC-PID Control Using PSO for Ultrasonic Motor

Intelligent IMC-PID Control Using PSO for Ultrasonic Motor teratioal Joural of Egieerig ovatio ad Maagemet (0 telliget MC- Cotrol Usig SO for Ultrasoic Motor Shegli MU, Graduate School of Egieerig, Yamaguchi Uiversity, Japa, p00we@yamaguchi-u.ac.jp Kaya TANAKA,

More information

SELECTION AND CONNECTION OF SPRING APPLIED FAILSAFE AND PERMENANT MAGNET BRAKES

SELECTION AND CONNECTION OF SPRING APPLIED FAILSAFE AND PERMENANT MAGNET BRAKES Ck85/06/ 70 Samatha Str SELECTION AND CONNECTION OF SPRING APPLIED FAILSAFE AND PERMENANT MAGNET BRAKES. OPERATING CONDITIONS. Normal Operatig Coditios The ambiet temperature must ot exceed 40 C ad its

More information

High-Order CCII-Based Mixed-Mode Universal Filter

High-Order CCII-Based Mixed-Mode Universal Filter High-Order CCII-Based Mixed-Mode Uiversal Filter Che-Nog Lee Departmet of Computer ad Commuicatio Egieerig, Taipei Chegshih Uiversity of Sciece ad Techology, Taipei, Taiwa, R. O. C. Abstract This paper

More information

APPLICATION NOTE UNDERSTANDING EFFECTIVE BITS

APPLICATION NOTE UNDERSTANDING EFFECTIVE BITS APPLICATION NOTE AN95091 INTRODUCTION UNDERSTANDING EFFECTIVE BITS Toy Girard, Sigatec, Desig ad Applicatios Egieer Oe criteria ofte used to evaluate a Aalog to Digital Coverter (ADC) or data acquisitio

More information

Implementation of Input Shaping Control to Reduce Residual Vibration in Industrial Network Motion System

Implementation of Input Shaping Control to Reduce Residual Vibration in Industrial Network Motion System 015 15th Iteratioal Coferece o Cotrol, Automatio ad Systems (ICCAS 015) Oct. 1-16, 015 i BEXCO, Busa, orea Implemetatio of Iput Shapig Cotrol to educe esidual Vibratio i Idustrial Network Motio System

More information

Analysis, design and implementation of a residential inductive contactless energy transfer system with multiple mobile clamps

Analysis, design and implementation of a residential inductive contactless energy transfer system with multiple mobile clamps Aalysis, desig ad implemetatio of a residetial iductive cotactless eergy trasfer system with multiple mobile clamps Arash Momeeh 1, Miguel Castilla 1, Mohammad Moradi Ghahderijai 1, Jaume Miret 1, Luis

More information

Cascaded Feedforward Sigma-delta Modulator for Wide Bandwidth Applications

Cascaded Feedforward Sigma-delta Modulator for Wide Bandwidth Applications Tamkag Joural of Sciece ad Egieerig, Vol. 4, No., pp. 55-64 () 55 Cascaded Feedforward Sigma-delta Modulator for Wide Badwidth Applicatios Je-Shiu Chiag, Teg-Hug Chag ad Pou-Chu Chou Departmet of Electrical

More information

x y z HD(x, y) + HD(y, z) HD(x, z)

x y z HD(x, y) + HD(y, z) HD(x, z) Massachusetts Istitute of Techology Departmet of Electrical Egieerig ad Computer Sciece 6.02 Solutios to Chapter 5 Updated: February 16, 2012 Please sed iformatio about errors or omissios to hari; questios

More information

Open Access Researching Coal and Rock Character Recognition Based on Wavelet Packet Frequency Band Energy

Open Access Researching Coal and Rock Character Recognition Based on Wavelet Packet Frequency Band Energy Sed Orders for Reprits to reprits@bethamsciece.ae The Ope Automatio ad Cotrol Systems Joural, 04, 6, 793-797 793 Ope Access Researchig Coal ad Roc Character Recogitio Based o Wavelet Pacet Frequecy Bad

More information

Sensors & Transducers 2015 by IFSA Publishing, S. L.

Sensors & Transducers 2015 by IFSA Publishing, S. L. Sesors & Trasducers 215 by IFSA Publishig, S. L. http://www.sesorsportal.com Uiversal Sesors ad Trasducers Iterface for Mobile Devices: Metrological Characteristics * Sergey Y. YURISH ad Javier CAÑETE

More information

The Detection of Abrupt Changes in Fatigue Data by Using Cumulative Sum (CUSUM) Method

The Detection of Abrupt Changes in Fatigue Data by Using Cumulative Sum (CUSUM) Method Proceedigs of the th WSEAS Iteratioal Coferece o APPLIED ad THEORETICAL MECHANICS (MECHANICS '8) The Detectio of Abrupt Chages i Fatigue Data by Usig Cumulative Sum (CUSUM) Method Z. M. NOPIAH, M.N.BAHARIN,

More information

Design of FPGA- Based SPWM Single Phase Full-Bridge Inverter

Design of FPGA- Based SPWM Single Phase Full-Bridge Inverter Desig of FPGA- Based SPWM Sigle Phase Full-Bridge Iverter Afarulrazi Abu Bakar 1, *,Md Zarafi Ahmad 1 ad Farrah Salwai Abdullah 1 1 Faculty of Electrical ad Electroic Egieerig, UTHM *Email:afarul@uthm.edu.my

More information

Nonlinear System Identification Based on Reduced Complexity Volterra Models Guodong Jin1,a* and Libin Lu1,b

Nonlinear System Identification Based on Reduced Complexity Volterra Models Guodong Jin1,a* and Libin Lu1,b 6th Iteratioal Coferece o Electroics, Mechaics, Culture ad Medicie (EMCM 205) Noliear System Idetificatio Based o Reduced Complexity Volterra Models Guodog Ji,a* ad Libi Lu,b Xi a research istitute of

More information

Delta- Sigma Modulator based Discrete Data Multiplier with Digital Output

Delta- Sigma Modulator based Discrete Data Multiplier with Digital Output K.Diwakar et al. / Iteratioal Joural of Egieerig ad echology (IJE Delta- Sigma Mulator based Discrete Data Multiplier with Digital Output K.Diwakar #,.ioth Kumar *2, B.Aitha #3, K.Kalaiarasa #4 # Departmet

More information

LETTER A Novel Adaptive Channel Estimation Scheme for DS-CDMA

LETTER A Novel Adaptive Channel Estimation Scheme for DS-CDMA 1274 LETTER A Novel Adaptive Chael Estimatio Scheme for DS-CDMA Che HE a), Member ad Xiao-xiag LI, Nomember SUMMARY This paper proposes a adaptive chael estimatio scheme, which uses differet movig average

More information

Technical Explanation for Counters

Technical Explanation for Counters Techical Explaatio for ers CSM_er_TG_E Itroductio What Is a er? A er is a device that couts the umber of objects or the umber of operatios. It is called a er because it couts the umber of ON/OFF sigals

More information

DESIGN AND IMPLEMENTATION OF DUAL-STAGE TRACK-FOLLOWING CONTROL FOR HARD DISK DRIVES

DESIGN AND IMPLEMENTATION OF DUAL-STAGE TRACK-FOLLOWING CONTROL FOR HARD DISK DRIVES DESIGN AND IMPLEMENTATION OF DUALSTAGE TRACKFOLLOWING CONTROL FOR HARD DISK DRIVES Jiabi Nie Computer Mechaics Laboratory Departmet of Mechaical Egieerig Uiversity of Califoria, Berkeley Berkeley, CA 947

More information

A Bipolar Cockcroft-Walton Voltage Multiplier for Gas Lasers

A Bipolar Cockcroft-Walton Voltage Multiplier for Gas Lasers America Joural of Applied cieces 4 (10): 79-799, 007 N 1546-99 007 ciece Publicatios orrespodig Author: A Bipolar ockcroft-walto Voltage Multiplier for Gas Lasers hahid qbal ad Rosli Besar Faculty of Egieerig

More information

Cross-Layer Performance of a Distributed Real-Time MAC Protocol Supporting Variable Bit Rate Multiclass Services in WPANs

Cross-Layer Performance of a Distributed Real-Time MAC Protocol Supporting Variable Bit Rate Multiclass Services in WPANs Cross-Layer Performace of a Distributed Real-Time MAC Protocol Supportig Variable Bit Rate Multiclass Services i WPANs David Tug Chog Wog, Jo W. Ma, ad ee Chaig Chua 3 Istitute for Ifocomm Research, Heg

More information

Joint Power Allocation and Beamforming for Cooperative Networks

Joint Power Allocation and Beamforming for Cooperative Networks It. J. Commuicatios, etwork ad System Scieces,, 4, 447-45 doi:.436/ijcs..4753 Published Olie July (http://www.scirp.org/joural/ijcs) Joit Power Allocatio ad Beamformig for Cooperative etworks Sodes Maadi,,

More information

Delta- Sigma Modulator with Signal Dependant Feedback Gain

Delta- Sigma Modulator with Signal Dependant Feedback Gain Delta- Sigma Modulator with Sigal Depedat Feedback Gai K.Diwakar #1 ad V.Vioth Kumar *2 # Departmet of Electroics ad Commuicatio Egieerig * Departmet of Electroics ad Istrumetatio Egieerig Vel Tech Uiversity,Cheai,

More information

TWO LINK ROBOT CONTROLLERS BASED ON FUZZY TYPE-2 AND HIGHER ORDER SLIDING MODE

TWO LINK ROBOT CONTROLLERS BASED ON FUZZY TYPE-2 AND HIGHER ORDER SLIDING MODE www.ijecs.i Iteratioal Joural Of Egieerig Ad Computer Sciece ISS:39-74 Volume Issue 5 May, 03 Page o. 57-577 TWO LIK OBOT COTOLLES BASED O FUZZ TPE- AD HIGHE ODE SLIDIG MODE Abstract Ali Pajeshahi, Assef

More information

Estimation of reflection location by the correlation coefficient function

Estimation of reflection location by the correlation coefficient function Acoustics 8 Paris Estimatio of reflectio locatio by the correlatio coefficiet fuctio H. Shibayama a, T. Araya b, Y. Maabe b ad E. Oarura b a Shibaura Istitute of Techology, 3-7-5, Toyosu, Koto-u, 35-8548

More information

SHORT-TERM TRAVEL TIME PREDICTION USING A NEURAL NETWORK

SHORT-TERM TRAVEL TIME PREDICTION USING A NEURAL NETWORK SHORT-TERM TRAVEL TIME PREDICTION USING A NEURAL NETWORK Giovai Huiske ad Eric va Berkum Dept. of Civil Egieerig - Uiversity of Twete - 7500 AE Eschede - The Netherlads E-mail: g.huiske@ctw.utwete.l ad

More information

ICM7213. One Second/One Minute Timebase Generator. Features. Description. Ordering Information. Pinout. August 1997

ICM7213. One Second/One Minute Timebase Generator. Features. Description. Ordering Information. Pinout. August 1997 August 997 Features Guarateed V Operatio Very Low Curret Cosumptio (Typ).... µa at V All Outputs TTL Compatible O Chip Oscillator Feedback Resistor Oscillator Requires Oly Exteral compoets: Fixed Capacitor,

More information

CHAPTER 5 A NEAR-LOSSLESS RUN-LENGTH CODER

CHAPTER 5 A NEAR-LOSSLESS RUN-LENGTH CODER 95 CHAPTER 5 A NEAR-LOSSLESS RUN-LENGTH CODER 5.1 GENERAL Ru-legth codig is a lossless image compressio techique, which produces modest compressio ratios. Oe way of icreasig the compressio ratio of a ru-legth

More information

Intermediate Information Structures

Intermediate Information Structures Modified from Maria s lectures CPSC 335 Itermediate Iformatio Structures LECTURE 11 Compressio ad Huffma Codig Jo Roke Computer Sciece Uiversity of Calgary Caada Lecture Overview Codes ad Optimal Codes

More information

Logarithms APPENDIX IV. 265 Appendix

Logarithms APPENDIX IV. 265 Appendix APPENDIX IV Logarithms Sometimes, a umerical expressio may ivolve multiplicatio, divisio or ratioal powers of large umbers. For such calculatios, logarithms are very useful. They help us i makig difficult

More information

SEVEN-LEVEL THREE PHASE CASCADED H-BRIDGE INVERTER WITH A SINGLE DC SOURCE

SEVEN-LEVEL THREE PHASE CASCADED H-BRIDGE INVERTER WITH A SINGLE DC SOURCE SEVEN-LEVEL THREE PHASE CASCADED H-BRIDGE INVERTER WITH A SINGLE DC SOURCE T. Porselvi 1 ad Ragaath Muthu 1 Sri Sairam Egieerig College, Cheai, Idia SSN College of Egieerig, Cheai, Idia E-Mail: tporselvi@yahoo.com

More information

Indicator No mark Single preset Dual preset DIN W144 H72mm DIN W48 H96mm No mark DIN W72 H72mm (4 digit) (6 digit) Counter/Timer

Indicator No mark Single preset Dual preset DIN W144 H72mm DIN W48 H96mm No mark DIN W72 H72mm (4 digit) (6 digit) Counter/Timer FX/FX/FX Series DIN W7 7, W8 96, W 7mm er/timer Features 6 iput modes ad output modes ig speed: cps/cps/kcps/kcps Selectable voltage iput (PNP) or No voltage iput (NPN) dditio of Up/Dow iput mode Wide

More information

Subcarriers and Bits Allocation in Multiuser Orthogonal Frequency Division Multiplexing System

Subcarriers and Bits Allocation in Multiuser Orthogonal Frequency Division Multiplexing System Sesors & Trasducers, Vol. 168, Issue 4, April 014, pp. 10-15 Sesors & Trasducers 014 by IFSA Publishig, S. L. http://www.sesorsportal.com Subcarriers ad Bits Allocatio i Multiuser Orthogoal Frequecy Divisio

More information

Reducing Power Dissipation in Complex Digital Filters by using the Quadratic Residue Number System Λ

Reducing Power Dissipation in Complex Digital Filters by using the Quadratic Residue Number System Λ Reducig Power Dissipatio i Complex Digital Filters by usig the Quadratic Residue Number System Λ Agelo D Amora, Alberto Naarelli, Marco Re ad Gia Carlo Cardarilli Departmet of Electrical Egieerig Uiversity

More information

Design of FPGA Based SPWM Single Phase Inverter

Design of FPGA Based SPWM Single Phase Inverter Proceedigs of MUCEET2009 Malaysia Techical Uiversities Coferece o Egieerig ad Techology Jue 20-22, 2009, MS Garde,Kuata, Pahag, Malaysia MUCEET2009 Desig of FPGA Based SPWM Sigle Phase Iverter Afarulrazi

More information

A Novel Small Signal Power Line Quality Measurement System

A Novel Small Signal Power Line Quality Measurement System IMTC 3 - Istrumetatio ad Measuremet Techology Coferece Vail, CO, USA, - May 3 A ovel Small Sigal Power Lie Quality Measuremet System Paul B. Crilly, Erik Leadro Boaldi, Levy Ely de Lacarda de Oliveira,

More information

STRAIN GAGE ANGULAR ACCELERATION SENSOR FACILITATES PRECISE CONTROL OF VIBRATION TABLE

STRAIN GAGE ANGULAR ACCELERATION SENSOR FACILITATES PRECISE CONTROL OF VIBRATION TABLE STRAIN GAGE ANGULAR ACCELERATION SENSOR FACILITATES PRECISE CONTROL OF VIBRATION TABLE Howard S. Havlicsek (Acutroic USA, Ic.) Preseted 14 September 1999 Symposium Gyro Techology 1999 Stuttgart, Germay

More information

ELEC 350 Electronics I Fall 2014

ELEC 350 Electronics I Fall 2014 ELEC 350 Electroics I Fall 04 Fial Exam Geeral Iformatio Rough breakdow of topic coverage: 0-5% JT fudametals ad regios of operatio 0-40% MOSFET fudametals biasig ad small-sigal modelig 0-5% iodes (p-juctio

More information

Roberto s Notes on Infinite Series Chapter 1: Series Section 2. Infinite series

Roberto s Notes on Infinite Series Chapter 1: Series Section 2. Infinite series Roberto s Notes o Ifiite Series Chapter : Series Sectio Ifiite series What you eed to ow already: What sequeces are. Basic termiology ad otatio for sequeces. What you ca lear here: What a ifiite series

More information

Counting on r-fibonacci Numbers

Counting on r-fibonacci Numbers Claremot Colleges Scholarship @ Claremot All HMC Faculty Publicatios ad Research HMC Faculty Scholarship 5-1-2015 Coutig o r-fiboacci Numbers Arthur Bejami Harvey Mudd College Curtis Heberle Harvey Mudd

More information

Implementation of Fuzzy Multiple Objective Decision Making Algorithm in a Heterogeneous Mobile Environment

Implementation of Fuzzy Multiple Objective Decision Making Algorithm in a Heterogeneous Mobile Environment Implemetatio of Fuzzy Multiple Objective Decisio Makig Algorithm i a Heterogeeous Mobile Eviromet P.M.L. ha, Y.F. Hu, R.E. Sheriff, Departmet of Electroics ad Telecommuicatios Departmet of yberetics, Iteret

More information

Fault Diagnosis in Rolling Element Bearing Using Filtered Vibration and Acoustic Signal

Fault Diagnosis in Rolling Element Bearing Using Filtered Vibration and Acoustic Signal Volume 8 o. 8 208, 95-02 ISS: 3-8080 (prited versio); ISS: 34-3395 (o-lie versio) url: http://www.ijpam.eu ijpam.eu Fault Diagosis i Rollig Elemet Usig Filtered Vibratio ad Acoustic Sigal Sudarsa Sahoo,

More information

INCREASE OF STRAIN GAGE OUTPUT VOLTAGE SIGNALS ACCURACY USING VIRTUAL INSTRUMENT WITH HARMONIC EXCITATION

INCREASE OF STRAIN GAGE OUTPUT VOLTAGE SIGNALS ACCURACY USING VIRTUAL INSTRUMENT WITH HARMONIC EXCITATION XIX IMEKO World Cogress Fudametal ad Applied Metrology September 6, 9, Lisbo, Portugal INCREASE OF STRAIN GAGE OUTPUT VOLTAGE SIGNALS ACCURACY USING VIRTUAL INSTRUMENT WITH HARMONIC EXCITATION Dalibor

More information

信號與系統 Signals and Systems

信號與系統 Signals and Systems Sprig 2 信號與系統 Sigals ad Systems Chapter SS- Sigals ad Systems Feg-Li Lia NTU-EE Feb Ju Figures ad images used i these lecture otes are adopted from Sigals & Systems by Ala V. Oppeheim ad Ala S. Willsky,

More information

Pulse-echo Ultrasonic NDE of Adhesive Bonds in Automotive Assembly

Pulse-echo Ultrasonic NDE of Adhesive Bonds in Automotive Assembly ECNDT 6 - Poster 7 Pulse-echo Ultrasoic NDE of Adhesive Bods i Automotive Assembly Roma Gr. MAEV, Sergey TITOV, Uiversity of Widsor, Widsor, Caada Abstract. Recetly, adhesive bodig techology has begu to

More information

Wind effect on Hyperbolic RCC Cooling Tower

Wind effect on Hyperbolic RCC Cooling Tower Iteratioal Joural of Curret Egieerig ad Techology E-ISSN 77 46, P-ISSN 47 6 INPRESSCO, All Rights Reserved Available at http://ipressco.com/category/ijcet Research Article Wid effect o Hyperbolic RCC Tower

More information

Frequency Adaptive Repetitive Control of Grid-Tied Single-Phase PV Inverters Zhou, Keliang; Yang, Yongheng; Blaabjerg, Frede

Frequency Adaptive Repetitive Control of Grid-Tied Single-Phase PV Inverters Zhou, Keliang; Yang, Yongheng; Blaabjerg, Frede Aalborg Uiversitet Frequecy Adaptive Repetitive Cotrol of Grid-Tied Sigle-Phase PV Iverters Zhou, Keliag; Yag, Yogheg; Blaabjerg, Frede Published i: Proceedigs of the 205 IEEE Eergy Coversio Cogress ad

More information

Performance and Analysis with Power Quality improvement with Cascaded Multi-Level Inverter Fed BLDC Motor Drive

Performance and Analysis with Power Quality improvement with Cascaded Multi-Level Inverter Fed BLDC Motor Drive Iteratioal Joural of Recet Advaces i Egieerig & Techology (IJRAET) Performace ad Aalysis with Power Quality improvemet with Cascaded Multi-Level Iverter Fed BLDC Motor Drive 1 N. Raveedra, 2 V.Madhu Sudha

More information

SETTLING-TIME-ORIENTED DESIGN PROCEDURE FOR TWO-STAGE AMPLIFIERS WITH CURRENT-BUFFER MILLER COMPENSATION

SETTLING-TIME-ORIENTED DESIGN PROCEDURE FOR TWO-STAGE AMPLIFIERS WITH CURRENT-BUFFER MILLER COMPENSATION SETTING-TIME-ORIENTED DESIGN PROCEDURE FOR TWO-STAGE AMPIFIERS WITH CURRENT-BUFFER MIER COMPENSATION ANDREA PUGIESE, 1 FRANCESCO AMOROSO, 1 GREGORIO CAPPUCCINO, 1 GIUSEPPE COCORUO 1 Key words: Operatioal

More information

Chapter 1 The Design of Passive Intermodulation Test System Applied in LTE 2600

Chapter 1 The Design of Passive Intermodulation Test System Applied in LTE 2600 Chapter The Desig of Passive Itermodulatio Test System Applied i LTE 600 Gogli, Wag Cheghua, You Wejue 3, Wa Yuqiag 4 Abstract. For the purpose of measurig the passive itermodulatio (PIM) products caused

More information

GROUND TESTERS GROUND RESISTANCE TEST TEST EQUIPMENT DET3 CONTRACTOR SERIES WHAT S IN THE DET3T NAME? DIGITAL EARTH TESTER 3 TERMINAL

GROUND TESTERS GROUND RESISTANCE TEST TEST EQUIPMENT DET3 CONTRACTOR SERIES WHAT S IN THE DET3T NAME? DIGITAL EARTH TESTER 3 TERMINAL TEST EQUIPMENT GROUND RESISTANCE GROUND TESTERS Megger is the expert i groud resistace testig. From time savig clamp-o groud testers to specialty models for high sesitivity testig, we have the groud resistace

More information

CONTROLLING FREQUENCY INFLUENCE ON THE OPERATION OF SERIAL THYRISTOR RLC INVERTERS

CONTROLLING FREQUENCY INFLUENCE ON THE OPERATION OF SERIAL THYRISTOR RLC INVERTERS EETRONIS - September, Sozopol, BUGARIA ONTROING FREQUENY INFUENE ON THE OPERATION OF SERIA THYRISTOR R INVERTERS Evgeiy Ivaov Popov, iliya Ivaova Pideva, Borislav Nikolaev Tsakovski Departmet of Power

More information

Selection of the basic parameters of the lens for the optic-electronic target recognition system

Selection of the basic parameters of the lens for the optic-electronic target recognition system Proceedigs of the 5th WSEAS It. Cof. o COMPUTATIONAL INTELLIGENCE, MAN-MACHINE SYSTEMS AND CYBERNETICS, Veice, Italy, November 0-, 006 317 Selectio of the basic parameters of the les for the optic-electroic

More information

A New Basic Unit for Cascaded Multilevel Inverters with the Capability of Reducing the Number of Switches

A New Basic Unit for Cascaded Multilevel Inverters with the Capability of Reducing the Number of Switches Joural of Power Electroics, ol, o, pp 67-677, July 67 JPE --6 http://dxdoiorg/6/jpe67 I(Prit: 98-9 / I(Olie: 9-78 A ew Basic Uit for Cascaded Multi Iverters with the Capability of Reducig the umber of

More information

信號與系統 Signals and Systems

信號與系統 Signals and Systems Sprig 24 信號與系統 Sigals ad Systems Chapter SS- Sigals ad Systems Feg-Li Lia NTU-EE Feb4 Ju4 Figures ad images used i these lecture otes are adopted from Sigals & Systems by Ala V. Oppeheim ad Ala S. Willsky,

More information

By: Pinank Shah. Date : 03/22/2006

By: Pinank Shah. Date : 03/22/2006 By: Piak Shah Date : 03/22/2006 What is Strai? What is Strai Gauge? Operatio of Strai Gauge Grid Patters Strai Gauge Istallatio Wheatstoe bridge Istrumetatio Amplifier Embedded system ad Strai Gauge Strai

More information

Design and Construction of a Three-phase Digital Energy Meter

Design and Construction of a Three-phase Digital Energy Meter Desig ad Costructio of a Three-phase Digital Eergy Meter D.P.Chadima, V.G.R.G. Jayawardae, E.A.E.H. Hemachadra, I.N.Jayasekera, H.V.L.Hasaraga, D.C. Hapuarachchi (chadima@elect.mrt.ac.lk, geethagaj@gmail.com,era.hem@gmail.com,ishaivaka@gmail.com,lahiru_hasaraga@yahoo.com,diya_elect.uom@gmail.com)

More information

Lecture 28: MOSFET as an Amplifier. Small-Signal Equivalent Circuit Models.

Lecture 28: MOSFET as an Amplifier. Small-Signal Equivalent Circuit Models. hites, EE 320 ecture 28 Page 1 of 7 ecture 28: MOSFET as a Amplifier. Small-Sigal Equivalet Circuit Models. As with the BJT, we ca use MOSFETs as AC small-sigal amplifiers. A example is the so-called coceptual

More information

Analysis and Optimization Design of Snubber Cricuit for Isolated DC-DC Converters in DC Power Grid

Analysis and Optimization Design of Snubber Cricuit for Isolated DC-DC Converters in DC Power Grid Aalysis ad Optimizatio Desig of Subber Cricuit for Isolated DC-DC Coverters i DC Power Grid Koji Orikawa Nagaoka Uiversity of Techology Nagaoka, Japa orikawa@st.agaokaut.ac.jp Ju-ichi Itoh Nagaoka Uiversity

More information

A 5th order video band elliptic filter topology using OTRA based Fleischer Tow Biquad with MOS-C Realization

A 5th order video band elliptic filter topology using OTRA based Fleischer Tow Biquad with MOS-C Realization Natural ad Egieerig Scieces 44 olume 1, No. 2, 44-52, 2016 A 5th order video bad elliptic filter topology usig OTA based Fleischer Tow Biquad with MOS-C ealiatio Ahmet Gökçe 1*, Uğur Çam 2 1 Faculty of

More information

Laboratory Exercise 3: Dynamic System Response Laboratory Handout AME 250: Fundamentals of Measurements and Data Analysis

Laboratory Exercise 3: Dynamic System Response Laboratory Handout AME 250: Fundamentals of Measurements and Data Analysis Laboratory Exercise 3: Dyamic System Respose Laboratory Hadout AME 50: Fudametals of Measuremets ad Data Aalysis Prepared by: Matthew Beigto Date exercises to be performed: Deliverables: Part I 1) Usig

More information

AN ESTIMATION OF MULTILEVEL INVERTER FED INDUCTION MOTOR DRIVE

AN ESTIMATION OF MULTILEVEL INVERTER FED INDUCTION MOTOR DRIVE 9 IJRIC. All rights reserved. IJRIC www.ijric.org E-ISSN: 76-3336 AN ESTIMATION OF MULTILEVEL INVERTER FED INDUCTION MOTOR DRIVE K.RAMANI AND DR.A. KRISHNAN SMIEEE Seior Lecturer i the Departmet of EEE

More information

A New 3-Bit Integrating Time to Digital Converter Using Time to Voltage Conversion Technique

A New 3-Bit Integrating Time to Digital Converter Using Time to Voltage Conversion Technique Bulleti of Eviromet, Pharmacology ad Life Scieces Bull. Ev. Pharmacol. Life Sci., ol 3 [11] October 2014:115-122 2014 Academy for Eviromet ad Life Scieces, dia Olie SSN 2277-1808 Joural s URL:http://www.bepls.com

More information

Reduction of Harmonic in a Multilevel Inverter Using Optimized Selective Harmonic Elimination Approach

Reduction of Harmonic in a Multilevel Inverter Using Optimized Selective Harmonic Elimination Approach ISSN (Olie) : 2319-8753 ISSN (Prit) : 2347-6710 Iteratioal Joural of Iovative Research i Sciece, Egieerig ad Techology Volume 3, Special Issue 3, March 2014 2014 Iteratioal Coferece o Iovatios i Egieerig

More information

doi: info:doi/ /ifeec

doi: info:doi/ /ifeec doi: ifo:doi/1.119/ifeec.17.799153 Trasformer Desig Difficulties of Curret Resoat Coverter for High Power Desity ad Wide Iput ltage Rage Toshiyuki Zaitsu Embedded System Research Ceter Omro Corporatio

More information

Measurements of the Communications Environment in Medium Voltage Power Distribution Lines for Wide-Band Power Line Communications

Measurements of the Communications Environment in Medium Voltage Power Distribution Lines for Wide-Band Power Line Communications Measuremets of the Commuicatios viromet i Medium Voltage Power Distributio Lies for Wide-Bad Power Lie Commuicatios Jae-Jo Lee *,Seug-Ji Choi *,Hui-Myoug Oh *, Wo-Tae Lee *, Kwa-Ho Kim * ad Dae-Youg Lee

More information

A Novel Three Value Logic for Computing Purposes

A Novel Three Value Logic for Computing Purposes Iteratioal Joural o Iormatio ad Electroics Egieerig, Vol. 3, No. 4, July 23 A Novel Three Value Logic or Computig Purposes Ali Soltai ad Saeed Mohammadi Abstract The aim o this article is to suggest a

More information