A RF Source Localization and Tracking System
|
|
- Hilary Williamson
- 6 years ago
- Views:
Transcription
1 The 010 Mltary Communcatons Conference - Unclassfed Program - Waveforms and Sgnal Processng Track A RF Source Localzaton and Trackng System Wll Tdd, Raymond J. Weber, Ykun Huang Department of Electrcal and Computer Engneerng Montana State Unversty Bozeman, MT Yufe Zhao Department of Electrcal and Computer Engneerng Unversty of Calforna Davs, CA Abstract Ths paper descrbes an RF source localzaton and trackng system usng an 8-element unform crcular array. The system s capable of precse RF source localzaton, fast target recognton and dscrmnaton, fast spectral sensng, real-tme processng for locaton trackng, and the suppresson of jammng and mult-path sgnals. Exstng systems and technology for precson locaton and trackng of non-cooperatve RF emtters are costly and tme consumng to develop and deploy, and some rely on satellte communcaton whch s not always avalable and s susceptble to jammng. Ths novel RF source localzaton and trackng system offers strategc, fast, and low-cost advantages n the next generaton of RF mappng, sensor networks, and moble wreless systems snce t s capable of automatc target localzaton and trackng, dynamc spectrum access, and drectonal power recepton/radaton wthout relyng on satellte communcaton. Keywords-RF mappng; DOA estmaton; frequency sensng; trackng; Kalman Flter. I. INTRODUCTION The Navy seeks novel solutons for detectng, locatng, and trackng moble rado frequency emtters and for long dstance relable communcaton. We have developed a novel and nnovatve RF source precson localzaton and trackng system that can localze and track moble rado frequency (RF emtters. Exstng systems and technology for precson locaton and trackng of non-cooperatve RF emtters are costly and tme consumng to develop and deploy, and some rely on satellte communcaton whch s not always avalable and s also susceptble to jammng. We have explored the feasblty of mplementng hgh resoluton smart antennas n conjuncton wth frequency swtchng and selecton technologes to create antenna array systems capable of reconfgurng ther spatal and spectral recevng and transmttng characterstcs n response to dynamc envronmental demands. Ths novel RF source localzaton and trackng system offers strategc advantages n the next generaton of RF mappng, sensor networks and moble wreless systems snce t s capable of automatc target localzaton and trackng, dynamc spectrum access, and drectonal power radaton/recepton. The frequency sensng, Drecton of Arrval (DOA estmaton and beamformng ablty help to reject frequency hoppng and nterference whle mantanng good communcaton lnks. suppressng jammng. The system s compact, lghtweght, and energy effcent. The hardware and software of our system s desgned to ncorporate relay hop and mesh capablty nto the Navy s moble communcatons technologes. Passve emtter locaton s an mportant component of the Sgnal Intellgence (SIGINT system. The characterstcs of an emtter sgnal, whch n our case s DOAestmaton, can be determned by multple antenna arrays. By usng the DOA estmates and known locatons of these arrays estmates from multple locatons can then be transmtted to an RF locator whch s responsble for emtter locaton and trackng. Specfcally, the data from multple arrays s collated at a sngle locaton and analyzed usng well-known technques such as multlateraton employng the use of TDOA (Tme Dfference of Arrval to arrve at a sngle DOA estmate. The results of our studes on TOA and TDOA localzaton wth ths array system have been publshed [1, ]. Theoretcal study, algorthm smulaton, and hardware desgn and mplementaton have all been carred out. A prototype system has been bult for lab tests. The system ncludes a unform crcular array that enables 360 degree azmuthal coverage, an RF recever board, a hgh speed A/D board, an FPGA board for Angle of Arrval (AOA estmaton and a PC to provde a user frendly Graphcal User Interface (GUI. The system operates at the 5.8 GHz band wth a bandwdth up to 1.5 MHz. The array gan s about 14dB. The Mean Square Error (MSE of DOA estmaton ranges from 0.01 to 1, dependng on the Sgnal to Nose Rato (SNR, sgnal frequency, samplng number and the algorthm. The current beamformng array and DOA estmaton system use a combnaton of analog and dgtal sgnal processng technques. Ths technology s used as the test-bed for mult-purpose tests and wll be extended nto the dgtal doman to add functonalty, to mprove performance, and to lower cost. The system can be scaled to operate at other frequences. Ths paper wll focus on our smulaton and lab test results on DOA estmaton usng the MUSIC algorthm and DOA trackng usng the Kalman state estmator. Ths paper s organzed as follows. In Secton, an overvew of our RF emtter localzaton and trackng technque s presented. Next, n Secton 3 a smulaton study on frequency search, spectral hole-fndng, DOA estmaton, and beamformng procedures s explaned. Secton 4 provdes an overvew of the hardware desgn. Then, n Secton 5 the lab test results are dscussed. Fnally, the conclusons are presented n the last Secton, 6. Ths work s supported by the Montana Board of Research and Commercalzaton Technology program under grant # /10/$ IEEE 67
2 II. A 3D RF EMITTER LOCATION AND TRACKING TECHNIQUE We consdered an m - element adaptve array wth arbtrary shape. The array receves sgnals from M spatally separated users. The proposed 3D RF emtter localzaton estmaton and trackng technque s summarzed as follows: A. Frequency Sensng There are numerous ways to sense the RF envronments frequency spectrum. A standard way s to compute an FFT of a block of data and then locate the peaks. Another approach for accurate frequency estmaton s a temporal doman ESPRIT frequency estmaton algorthm [1, ]. Ths uses two sgnal sets, wth one orgnal data set and one delayed data set where the tme between the two data sets s less than or equal to the Nyqust samplng nterval. The sgnal frequences of multple sgnals wthn the baseband are determned from the generalzed egenvalues of a matrx composed of crosscorrelatons between the two sgnal paths. The appled metrc s a matrx constructed from the auto-correlaton sequence for ether path. B. DOA Estmaton There are many DOA estmaton algorthms that can be used for ths purpose. For arbtrarly shaped arrays we chose the hgh resoluton Multple Sgnal Classfcaton (MUSIC DOA estmaton algorthm [3]. MUSIC performance approaches the Cramér Rao Bound (CRB, the theoretcal lmt to the performance achevable by an unbased estmaton algorthm. Ths s acheved through the use of matrx subspace technques whch force the nose and sgnals nto orthogonal subspaces from whch the orthogonal matrx can be computed. The DOA estmaton results from multple arrays wll be used for locaton estmaton. C. Jont Frequency and DOA Estmaton We have developed a novel method for jont frequency and D angle estmaton of ncomng sgnals mpngng upon a crcular array over a very wde frequency band (-18 GHz.[4] A temporal doman ESPRIT frequency estmaton algorthm was extended for azmuth and elevaton angle estmaton. These drecton estmaton results are automatcally pared wth frequency. The algorthm provdes non-ambguty, hgh resoluton, and accuracy n both frequency and drecton of arrval estmaton over the frequency range. The DOA estmaton accuracy and resoluton were compared wth the orgnal MUSIC DOA estmaton results. D. Locaton Estmaton The Hough Transform was used for locaton estmaton [5]. The dstance from a reference ste at ( x, z to the locaton (x, y, z s found to be, R ( xr x ( y y ( z z r r The range dfference between a locaton on the grd, array, and the reference ste 1 s then: r y r r c,1 R R ( x ( x r x 1 ( y ( r y r x y y z z 1 r1 r1 ( z ( r z Assume that the measurement errors n DOA estmaton are Gaussan. The votng functon s defned n terms of the condtonal probablty densty functon (pdf. The DOA estmaton pdf s: exp p( x, y Where s the measured angle at array, s the calculated angle to pont xy (z on the grd and s the standard devaton n the angle measurement. The resultng votng equaton for DOA only estmaton s: A M 1 ( x, y p( x, y DOA m M m1 E. Trackng The mplemented Kalman state estmator was heavly based upon an artcle by Dan Smon; mplementaton and code documented n [6]. The code focused on vehcle navgaton applcatons and was modfed prmarly n the nputs such that t tracked angular poston nstead of Cartesan coordnate postons. The Kalman flter s a smple and well known algorthm for trackng. Ths algorthm s a specal case of a recursve least squares flter that predcts the velocty and acceleraton of a source n the presence of nose. Whle many algorthms have been developed for use n systems such as ths, the Kalman flter s used n the followng smulaton study n ths paper. III. SIMULATION STUDY All the smulatons were performed for an 8-element crcular array. The array dameter s.0. The operaton frequency s 5.8GHz. A. DOA locaton estmaton As an example, consder three statonary arrays located at (0km, 0km, (0km, 0.5km and (0.75km, 0.01km respectvely and a sngle source located at (.5km, 1km. The SNR s 0 db and the mesh spacng s 10 m. At each array, DOA estmaton was made and the standard devaton of each estmaton was assumed as 0.01 durng our Monte Carlo smulaton. The correspondng Hough Transform space for these DOA measurements s shown n fgure 1. The red dots represent the arrays and the peak n the HT space (represented as a black dot s the RF source. In ths smulaton we used three arrays for comparson purposes. 68
3 on each prevous sgnal frequency and angle. Ths approach s vald assumng that a target wll not move more than a predefned range n one update perod. The thrd approach lmted our trackng abltes so smulaton studes were only consdered and carred out usng the frst approach. Ths Kalman flter technque was appled to the results of the jont frequency and DOA estmaton algorthm. The smulaton consdered a sgnal movng at a constant angular velocty from 10 to 60 and then mmedately ceasng movement. The results of ths smulaton are shown n Fgures 3 and 4 where True s the Kalman estmate, Measured s the DOA estmates, and Estmated s the current Kalman state estmate. These fgures show that the trackng works as expected and quckly converges upon the necessary velocty's to track the target. Fgure 1. HT space for D DOA measurement for one sgnal locates at (km,1km. Next, we ran a 3D locaton estmaton wth two arrays. Two statonary arrays located at (km, 1km, 1km and (km, 3km,.5km respectvely and a sngle source located at (9km, 4km, 1km. The SNR s 0 db and the mesh spacng s 5 m. The correspondng Hough Transform space for these DOA measurements s shown n fgure. The green dots represent the arrays and the peak n the HT space (represented as a black dot s the RF source. (a Kalman Trackng Poston Fgure. HT space for 3D DOA measurement for one sgnal locates at (9km, 1km,150m. F. Trackng Three approaches to trackng were consdered. One avenue was to use a closed loop adaptve algorthm, such as the Kalman flter, to track angular speed and locaton of the detected sgnals. Smulaton studes were carred out for trackng a moble target. It starts at 10, movng 5 per run. The sgnal s a 5.8 GHz contnuous wave (CW. The samplng rate s GHz. The sgnal to nose rato s 0 db. The samplng tme s 1000 per run. The second approach conssted of runnng the ESPRIT based algorthm perodcally to make sure that the sgnal frequency and angle estmatons were current. Ths approach was to computatonally ntensve and was not mplemented. The thrd approach was to use the prevous sgnal frequency and angle as a startng pont and only run frequency and angle estmaton n narrowed wndows centered (b Kalman Resultng Poston Error Fgure 3. DOA estmaton Kalman trackng smulaton results. The Kalman flter was also smulated for trackng two separate targets by keepng separate tracks of each target and assumng that the pont closest to the estmated next track of a target was a contnuaton of the same target. These tracks then kept ther data separate whle runnng the Kalman estmaton algorthm ndvdually on each track. For the smulaton n Fgure 5, two sgnals were tracked wth the MUSIC DOA estmates beng fed nto the Kalman estmaton algorthm as they move lnearly around the array and then stopped. 69
4 (a Kalman Trackng Velocty Fgure 6. An 8-monopole crcular array wth a ground skrt. The system we mplemented n the lab, as shown n fgure 7, determnes a target's DOA and passes the relevant data nto a Kalman trackng algorthm. Fgure 7. Array system dagram. (b Kalman Trackng of Velocty Error Fgure 4. Angular velocty trackng smulaton results. The system uses a recever board (RX to amplfy and down-convert the rado frequences to baseband. Then a Data AcQuston (DAQ card creates a dgtal representaton of the tme sgnal and sends the data to MATLAB for FFT processng. The recever board prototype that has been bult s depcted n fgure 8. The RF sgnal from the antenna array s fed nto the top 8 SMA nputs shown n the photo below. The lower 8 SMA connectors are the down-converted baseband output, and the local oscllator (LO feed s the center SMA. The automatc gan control settngs are at baseband frequences and are located on the back of the board. Fgure 5. Two targets Kalman DOA estmates tracks. IV. HARDWARE OVERVIEW We desgned an 8-element unform crcular array (UCA as shown n Fgure 6. The array electrcal sze s 3.0. The nterelement spacng s The array gan s 14 db. The desgned operatng frequency s 5.8GHz. Because the UCA offers 360 beam steerng wthout sgnfcant effect on the beam shape and no nherent angular estmaton ambguty, a crcular geometry was chosen nstead of a lnear one. Fgure 8. RF recever board snapshot. A LabVIEW PC nterface has been developed to control all the nstrumentaton and hardware. It s used to control the processng of the ncomng sgnals after acquston and dgtalto-analog converson. Frst, t s used to determne the frequences of nterest, DOA estmates, and avalable spectral holes. Second, t s used to beamform toward the users, null the nterferers, and track the moble users. 70
5 V. LAB TEST RESULTS AND DISCUSSIONS The experments were conducted n an anechoc chamber at the Electrcal and Computer Engneerng (ECE Department of Montana State Unversty (MSU. These experments were desgned to test the accuracy and robustness of the MUSIC DOA and Kalman trackng system n a test-bed envronment, and to provde emprcal proof for the prevously conducted smulatons. We frst verfed the functonalty of the MUSIC DOA algorthm n our system wth an SNR of 15 db. In fgure 9, we show the MUSIC algorthm returns a sngle peak at the estmated locaton of the source wth respect to the array, and the peak s sharp as a result of a calbraton technque compensatng for the mutual couplng of the array head. Wthout movng the turntable and takng repeated tests, the standard devaton of the angle estmates vared between 0.03 for 100 runs at approxmately 35 db SNR and ncreasng to about 1 wth lower SNRs (5 10 db whch closely resembled theoretcal predctons. All experments and smulatons were conducted wth a sample rate of.5 MSPS and 1000 samples. SNR of 15 db was placed n the chamber whle the 8-element array was located opposte the source on a turntable. The turntable was steered on a random path ncludng changes n drecton and speed to smulate the target movng at dfferent veloctes around the array. Fgure 11 shows the true angle measured wth the MUSIC DOA algorthm versus the Kalman estmated DOA as well as the error between the two. The teratons are unt-less values of tme on the order of seconds. Fgure 11. Kalman trackng poston and error for 1 target. Fgure 1, plots the true velocty of the source, found by takng the dervatve of the true angle above wth respect to tme, versus the estmated Kalman velocty. The error between the two s plotted as the velocty estmated error on the rght sde axs of the plot. Fgure 1 s assocated wth the same source path as fgure 11. Fgure 9. Sngle source DOA pseudo power-spectra. In fgure 10, we repeated the experment wth two sources at slghtly dfferent frequences wth a combned SNR of approxmately 0 db to verfy that we can detect the locaton of targets wth approxmately 90 of separaton. Fgure 1. Kalman trackng velocty and error for 1 target.. Second, two CW sgnal sources/targets wth a combned SNR of 0 db were placed at a dstance satsfyng the far feld crteron from the 8-element array. Intally both were movng around the array at a constant angular velocty. The second target was then moved at a dfferent velocty n the path of the frst target wth the ntenton of testng the robustness of the trackng algorthm and then moved back to ts statonary poston wth respect to the frst source. Fgure 13, shows the true DOA and estmated Kalman DOA for both sources. Fgure 10. Two source DOA pseudo power-spectra. Next, we tested and verfed the functonalty of the Kalman flter algorthm. Frst, one CW sgnal source wth an 71
6 Fgure 13. Kalman trackng poston for targets. Fgure 14, shows the Kalman trackng error as the dfference between the true MUSIC DOA and the estmated Kalman DOA for both sources, respectvely. Fgure 14 s assocated wth the same target paths as fgure 13. poston based on the prevous velocty and poston, slght overshoot can be notced n the Kalman estmaton DOA when the source suddenly stops or changes drecton. The overshoot s exacerbated when the source s movng at faster veloctes. Some small DOA error s nduced when usng the Kalman trackng system, but the reducton n computatonal complexty far outweghs the nduced angle error exemplfyng the feasblty of the Kalman state estmator. The expermental results renforced the smulaton results and proved the abltes of the current hardware platform to quckly ascertan hghly accurate DOAs and track multple sources even when ther paths nterfere. The system's DOA and trackng estmates do experence degradaton wth lower SNR values, ncreased target veloctes, or unorthodox target trajectory paths. The DOA estmaton accuraces are drectly proportonal to SNR levels translatng nto ncreased DOA and trackng error wth lower SNR. Ths relatonshp has yet to be quantfed, but t can be assumed for low SNR (< 0 db or very fast movng objects (> 90 /sec the DOA and trackng estmaton methods become hghly senstve and may breakdown. These algorthms are desgned to work n an envronment that does not exceed these lmts. The overall system desgn s a small, lghtweght, energy effcent devce, whch can acheve hghly accurate DOA estmatons and concurrently track multple sources usng a Kalman based trackng algorthm. Fgure 14. Kalman trackng error for targets. VI. CONCLUSIONS The experments tested and verfed the MUSIC DOA and Kalman trackng algorthms wth one and two targets at varyng speeds and drectons. The results of the DOA estmaton experments show the system's ablty to perform DOA estmaton wth the MUSIC algorthm for sngle or multple targets. The calbraton mplemented allows for these estmates to approach the theoretcal predctons of accuracy as measured through the standard devaton of multple runs. The experments tested the DOA and Kalman trackng algorthms wth one and two targets at varyng speeds and drectons. Because the Kalman estmator predcts current ACKNOWLEDGMENTS The authors thank Andy Olson, Ahmed Khallaayoun, and Aaron Traxnger for ther help n hardware desgn, calbraton and testng. REFERENCES [1] Raymond J. Weber, Ykun Huang. A local postonng system for wreless networks. Natonal Rado Scence Meetng, Unversty of Colorado at Boulder, January 010. [] Raymond J. Weber, Ykun Huang. 3d RF emtter locaton estmaton. 010 IEEE Aerospace Conference, Bg Sky, MT, March 010. [3] Ralph O. Schmdt. Multple emtter locaton and sgnal parameter estmaton. IEEE Trans. on Antennas and Propaga., AP-34(3:76-80, March, [4] Raymond J. Weber and Ykun Huang. A wdeband crcular array for frequency and D drecton estmaton and trackng, IEEE Aerospace Conference, March, 010. [5] P. V. C. Hough. Method and means for recognzng complex patterns. US Patent , 196. [6] Dan Smon. Kalman Flterng. Embedded Systems Programmng, pp. 7-79, June
To: Professor Avitabile Date: February 4, 2003 From: Mechanical Student Subject: Experiment #1 Numerical Methods Using Excel
To: Professor Avtable Date: February 4, 3 From: Mechancal Student Subject:.3 Experment # Numercal Methods Usng Excel Introducton Mcrosoft Excel s a spreadsheet program that can be used for data analyss,
More informationA High-Sensitivity Oversampling Digital Signal Detection Technique for CMOS Image Sensors Using Non-destructive Intermediate High-Speed Readout Mode
A Hgh-Senstvty Oversamplng Dgtal Sgnal Detecton Technque for CMOS Image Sensors Usng Non-destructve Intermedate Hgh-Speed Readout Mode Shoj Kawahto*, Nobuhro Kawa** and Yoshak Tadokoro** *Research Insttute
More informationCalculation of the received voltage due to the radiation from multiple co-frequency sources
Rec. ITU-R SM.1271-0 1 RECOMMENDATION ITU-R SM.1271-0 * EFFICIENT SPECTRUM UTILIZATION USING PROBABILISTIC METHODS Rec. ITU-R SM.1271 (1997) The ITU Radocommuncaton Assembly, consderng a) that communcatons
More informationNATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia SPECTRAL PROCESSOR MEMO NO. 25. MEMORANDUM February 13, 1985
NATONAL RADO ASTRONOMY OBSERVATORY Green Bank, West Vrgna SPECTRAL PROCESSOR MEMO NO. 25 MEMORANDUM February 13, 1985 To: Spectral Processor Group From: R. Fsher Subj: Some Experments wth an nteger FFT
More informationComparative Analysis of Reuse 1 and 3 in Cellular Network Based On SIR Distribution and Rate
Comparatve Analyss of Reuse and 3 n ular Network Based On IR Dstrbuton and Rate Chandra Thapa M.Tech. II, DEC V College of Engneerng & Technology R.V.. Nagar, Chttoor-5727, A.P. Inda Emal: chandra2thapa@gmal.com
More information熊本大学学術リポジトリ. Kumamoto University Repositor
熊本大学学術リポジトリ Kumamoto Unversty Repostor Ttle Wreless LAN Based Indoor Poston and Its Smulaton Author(s) Ktasuka, Teruak; Nakansh, Tsune CtatonIEEE Pacfc RIM Conference on Comm Computers, and Sgnal Processng
More informationRejection of PSK Interference in DS-SS/PSK System Using Adaptive Transversal Filter with Conditional Response Recalculation
SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol., No., November 23, 3-9 Rejecton of PSK Interference n DS-SS/PSK System Usng Adaptve Transversal Flter wth Condtonal Response Recalculaton Zorca Nkolć, Bojan
More informationHigh Speed ADC Sampling Transients
Hgh Speed ADC Samplng Transents Doug Stuetzle Hgh speed analog to dgtal converters (ADCs) are, at the analog sgnal nterface, track and hold devces. As such, they nclude samplng capactors and samplng swtches.
More informationSubarray adaptive beamforming for reducing the impact of flow noise on sonar performance
Subarray adaptve beamformng for reducng the mpact of flow nose on sonar performance C. Bao 1, J. Leader and J. Pan 1 Defence Scence & Technology Organzaton, Rockngham, WA 6958, Australa School of Mechancal
More informationParameter Free Iterative Decoding Metrics for Non-Coherent Orthogonal Modulation
1 Parameter Free Iteratve Decodng Metrcs for Non-Coherent Orthogonal Modulaton Albert Gullén Fàbregas and Alex Grant Abstract We study decoder metrcs suted for teratve decodng of non-coherently detected
More informationDynamic Optimization. Assignment 1. Sasanka Nagavalli January 29, 2013 Robotics Institute Carnegie Mellon University
Dynamc Optmzaton Assgnment 1 Sasanka Nagavall snagaval@andrew.cmu.edu 16-745 January 29, 213 Robotcs Insttute Carnege Mellon Unversty Table of Contents 1. Problem and Approach... 1 2. Optmzaton wthout
More informationantenna antenna (4.139)
.6.6 The Lmts of Usable Input Levels for LNAs The sgnal voltage level delvered to the nput of an LNA from the antenna may vary n a very wde nterval, from very weak sgnals comparable to the nose level,
More informationAn Improved Method for GPS-based Network Position Location in Forests 1
Ths full text paper was peer revewed at the drecton of IEEE Communcatons Socety subject matter experts for publcaton n the WCNC 008 proceedngs. An Improved Method for GPS-based Network Poston Locaton n
More informationThe Performance Improvement of BASK System for Giga-Bit MODEM Using the Fuzzy System
Int. J. Communcatons, Network and System Scences, 10, 3, 1-5 do:10.36/jcns.10.358 Publshed Onlne May 10 (http://www.scrp.org/journal/jcns/) The Performance Improvement of BASK System for Gga-Bt MODEM Usng
More informationUncertainty in measurements of power and energy on power networks
Uncertanty n measurements of power and energy on power networks E. Manov, N. Kolev Department of Measurement and Instrumentaton, Techncal Unversty Sofa, bul. Klment Ohrdsk No8, bl., 000 Sofa, Bulgara Tel./fax:
More informationA COMPARATIVE STUDY OF DOA ESTIMATION ALGORITHMS WITH APPLICATION TO TRACKING USING KALMAN FILTER
A COMPARATIVE STUDY OF DOA ESTIMATION ALGORITHMS WITH APPLICATION TO TRACKING USING KALMAN FILTER ABSTRACT Venu Madhava M 1, Jagadeesha S N 1, and Yerrswamy T 2 1 Department of Computer Scence and Engneerng,
More informationIEE Electronics Letters, vol 34, no 17, August 1998, pp ESTIMATING STARTING POINT OF CONDUCTION OF CMOS GATES
IEE Electroncs Letters, vol 34, no 17, August 1998, pp. 1622-1624. ESTIMATING STARTING POINT OF CONDUCTION OF CMOS GATES A. Chatzgeorgou, S. Nkolads 1 and I. Tsoukalas Computer Scence Department, 1 Department
More informationEfficient Large Integers Arithmetic by Adopting Squaring and Complement Recoding Techniques
The th Worshop on Combnatoral Mathematcs and Computaton Theory Effcent Large Integers Arthmetc by Adoptng Squarng and Complement Recodng Technques Cha-Long Wu*, Der-Chyuan Lou, and Te-Jen Chang *Department
More informationPerformance Analysis of Multi User MIMO System with Block-Diagonalization Precoding Scheme
Performance Analyss of Mult User MIMO System wth Block-Dagonalzaton Precodng Scheme Yoon Hyun m and Jn Young m, wanwoon Unversty, Department of Electroncs Convergence Engneerng, Wolgye-Dong, Nowon-Gu,
More informationResearch of Dispatching Method in Elevator Group Control System Based on Fuzzy Neural Network. Yufeng Dai a, Yun Du b
2nd Internatonal Conference on Computer Engneerng, Informaton Scence & Applcaton Technology (ICCIA 207) Research of Dspatchng Method n Elevator Group Control System Based on Fuzzy Neural Network Yufeng
More informationHigh Speed, Low Power And Area Efficient Carry-Select Adder
Internatonal Journal of Scence, Engneerng and Technology Research (IJSETR), Volume 5, Issue 3, March 2016 Hgh Speed, Low Power And Area Effcent Carry-Select Adder Nelant Harsh M.tech.VLSI Desgn Electroncs
More informationPerformance Testing of the Rockwell PLGR+ 96 P/Y Code GPS receiver
Performance Testng of the Rockwell PLGR+ 96 P/Y Code GPS recever By Santago Mancebo and Ken Chamberlan Introducton: The Rockwell PLGR (Precson Lghtweght GPS Recever) + 96 s a Precse Postonng Servce P/Y
More informationANNUAL OF NAVIGATION 11/2006
ANNUAL OF NAVIGATION 11/2006 TOMASZ PRACZYK Naval Unversty of Gdyna A FEEDFORWARD LINEAR NEURAL NETWORK WITH HEBBA SELFORGANIZATION IN RADAR IMAGE COMPRESSION ABSTRACT The artcle presents the applcaton
More informationPRACTICAL, COMPUTATION EFFICIENT HIGH-ORDER NEURAL NETWORK FOR ROTATION AND SHIFT INVARIANT PATTERN RECOGNITION. Evgeny Artyomov and Orly Yadid-Pecht
68 Internatonal Journal "Informaton Theores & Applcatons" Vol.11 PRACTICAL, COMPUTATION EFFICIENT HIGH-ORDER NEURAL NETWORK FOR ROTATION AND SHIFT INVARIANT PATTERN RECOGNITION Evgeny Artyomov and Orly
More informationFigure.1. Basic model of an impedance source converter JCHPS Special Issue 12: August Page 13
A Hgh Gan DC - DC Converter wth Soft Swtchng and Power actor Correcton for Renewable Energy Applcaton T. Selvakumaran* and. Svachdambaranathan Department of EEE, Sathyabama Unversty, Chenna, Inda. *Correspondng
More informationMulti-hop-based Monte Carlo Localization for Mobile Sensor Networks
Mult-hop-based Monte Carlo Localzaton for Moble Sensor Networks Jyoung Y, Sungwon Yang and Hojung Cha Department of Computer Scence, Yonse Unversty Seodaemun-gu, Shnchon-dong 34, Seoul 20-749, Korea {jyy,
More informationFast Code Detection Using High Speed Time Delay Neural Networks
Fast Code Detecton Usng Hgh Speed Tme Delay Neural Networks Hazem M. El-Bakry 1 and Nkos Mastoraks 1 Faculty of Computer Scence & Informaton Systems, Mansoura Unversty, Egypt helbakry0@yahoo.com Department
More informationBeam quality measurements with Shack-Hartmann wavefront sensor and M2-sensor: comparison of two methods
Beam qualty measurements wth Shack-Hartmann wavefront sensor and M-sensor: comparson of two methods J.V.Sheldakova, A.V.Kudryashov, V.Y.Zavalova, T.Y.Cherezova* Moscow State Open Unversty, Adaptve Optcs
More informationDigital Transmission
Dgtal Transmsson Most modern communcaton systems are dgtal, meanng that the transmtted normaton sgnal carres bts and symbols rather than an analog sgnal. The eect o C/N rato ncrease or decrease on dgtal
More information1 GSW Multipath Channel Models
In the general case, the moble rado channel s pretty unpleasant: there are a lot of echoes dstortng the receved sgnal, and the mpulse response keeps changng. Fortunately, there are some smplfyng assumptons
More informationMASTER TIMING AND TOF MODULE-
MASTER TMNG AND TOF MODULE- G. Mazaher Stanford Lnear Accelerator Center, Stanford Unversty, Stanford, CA 9409 USA SLAC-PUB-66 November 99 (/E) Abstract n conjuncton wth the development of a Beam Sze Montor
More informationResearch on Peak-detection Algorithm for High-precision Demodulation System of Fiber Bragg Grating
, pp. 337-344 http://dx.do.org/10.1457/jht.014.7.6.9 Research on Peak-detecton Algorthm for Hgh-precson Demodulaton System of Fber ragg Gratng Peng Wang 1, *, Xu Han 1, Smn Guan 1, Hong Zhao and Mngle
More informationA Comparison of Two Equivalent Real Formulations for Complex-Valued Linear Systems Part 2: Results
AMERICAN JOURNAL OF UNDERGRADUATE RESEARCH VOL. 1 NO. () A Comparson of Two Equvalent Real Formulatons for Complex-Valued Lnear Systems Part : Results Abnta Munankarmy and Mchael A. Heroux Department of
More informationChaotic Filter Bank for Computer Cryptography
Chaotc Flter Bank for Computer Cryptography Bngo Wng-uen Lng Telephone: 44 () 784894 Fax: 44 () 784893 Emal: HTwng-kuen.lng@kcl.ac.ukTH Department of Electronc Engneerng, Dvson of Engneerng, ng s College
More informationA study of turbo codes for multilevel modulations in Gaussian and mobile channels
A study of turbo codes for multlevel modulatons n Gaussan and moble channels Lamne Sylla and Paul Forter (sylla, forter)@gel.ulaval.ca Department of Electrcal and Computer Engneerng Laval Unversty, Ste-Foy,
More informationA New Type of Weighted DV-Hop Algorithm Based on Correction Factor in WSNs
Journal of Communcatons Vol. 9, No. 9, September 2014 A New Type of Weghted DV-Hop Algorthm Based on Correcton Factor n WSNs Yng Wang, Zhy Fang, and Ln Chen Department of Computer scence and technology,
More informationWalsh Function Based Synthesis Method of PWM Pattern for Full-Bridge Inverter
Walsh Functon Based Synthess Method of PWM Pattern for Full-Brdge Inverter Sej Kondo and Krt Choesa Nagaoka Unversty of Technology 63-, Kamtomoka-cho, Nagaoka 9-, JAPAN Fax: +8-58-7-95, Phone: +8-58-7-957
More informationParticle Filters. Ioannis Rekleitis
Partcle Flters Ioanns Reklets Bayesan Flter Estmate state x from data Z What s the probablty of the robot beng at x? x could be robot locaton, map nformaton, locatons of targets, etc Z could be sensor
More informationCooperative localization method for multi-robot based on PF-EKF
Scence n Chna Seres F: Informaton Scences 008 SCIENCE IN CHINA PRESS Sprnger www.scchna.com nfo.scchna.com www.sprngerln.com Cooperatve localzaton method for mult-robot based on PF-EKF WANG Lng, WAN JanWe,
More informationIntegration of Global Positioning System and Inertial Navigation System with Different Sampling Rate Using Adaptive Neuro Fuzzy Inference System
World Appled Scences Journal 7 (Specal Issue of Computer & IT): 98-6, 9 ISSN 88.495 IDOSI Publcatons, 9 Integraton of Global Postonng System and Inertal Navgaton System wth Dfferent Samplng Rate Usng Adaptve
More informationA Pervasive Indoor-Outdoor Positioning System
70 JOURNAL OF NETWORKS, VOL. 3, NO. 8, NOVEMBER 008 A Pervasve Indoor-Outdoor Postonng System Lonel Reyero 1, Glles Delsle 1 INRS-EMT, Unversté du Québec, Montréal, Canada, H5A 1K6, lonel.reyero@telecom.com
More informationHarmonic Balance of Nonlinear RF Circuits
MICROWAE AND RF DESIGN Harmonc Balance of Nonlnear RF Crcuts Presented by Mchael Steer Readng: Chapter 19, Secton 19. Index: HB Based on materal n Mcrowave and RF Desgn: A Systems Approach, nd Edton, by
More informationA MODIFIED DIFFERENTIAL EVOLUTION ALGORITHM IN SPARSE LINEAR ANTENNA ARRAY SYNTHESIS
A MODIFIED DIFFERENTIAL EVOLUTION ALORITHM IN SPARSE LINEAR ANTENNA ARRAY SYNTHESIS Kaml Dmller Department of Electrcal-Electroncs Engneerng rne Amercan Unversty North Cyprus, Mersn TURKEY kdmller@gau.edu.tr
More informationThe Application of Interpolation Algorithms in OFDM Channel Estimation
The Applcaton of Interpolaton Algorthms n OFDM Estmaton Xjun ZHANG 1,, Zhantng YUAN 1, 1 School of Electrcal and Informaton Engneerng, Lanzhou Unversty of Technology, Lanzhou, Gansu 730050, Chna School
More informationTHE GENERATION OF 400 MW RF PULSES AT X-BAND USING RESONANT DELAY LINES *
SLAC PUB 874 3/1999 THE GENERATION OF 4 MW RF PULSES AT X-BAND USING RESONANT DELAY LINES * Sam G. Tantaw, Arnold E. Vleks, and Rod J. Loewen Stanford Lnear Accelerator Center, Stanford Unversty P.O. Box
More informationUplink User Selection Scheme for Multiuser MIMO Systems in a Multicell Environment
Uplnk User Selecton Scheme for Multuser MIMO Systems n a Multcell Envronment Byong Ok Lee School of Electrcal Engneerng and Computer Scence and INMC Seoul Natonal Unversty leebo@moble.snu.ac.kr Oh-Soon
More information1.0 INTRODUCTION 2.0 CELLULAR POSITIONING WITH DATABASE CORRELATION
An Improved Cellular postonng technque based on Database Correlaton B D S Lakmal 1, S A D Das 2 Department of Electronc & Telecommuncaton Engneerng, Unversty of Moratuwa. { 1 shashka, 2 dleeka}@ent.mrt.ac.lk
More informationImpact of Interference Model on Capacity in CDMA Cellular Networks. Robert Akl, D.Sc. Asad Parvez University of North Texas
Impact of Interference Model on Capacty n CDMA Cellular Networks Robert Akl, D.Sc. Asad Parvez Unversty of North Texas Outlne Introducton to CDMA networks Average nterference model Actual nterference model
More informationMulti-sensor optimal information fusion Kalman filter with mobile agents in ring sensor networks
Mult-sensor optmal nformaton fuson Kalman flter wth moble agents n rng sensor networs Behrouz Safarneadan *, Kazem asanpoor ** *Shraz Unversty of echnology, safarnead@sutech.ac.r ** Shraz Unversty of echnology,.hasanpor@gmal.com
More informationDetection and Mitigation of GPS Spoofing Based on Antenna Array Processing
Detecton and Mtgaton of GPS Spoofng Based on Antenna Array Processng J. Magera* and R. Katulsk Department of Rado Communcatons Systems and Networks Gdansk Unversty of Technology Gdansk, Poland *radokom@et.pg.gda.pl
More informationSection 5. Signal Conditioning and Data Analysis
Secton 5 Sgnal Condtonng and Data Analyss 6/27/2017 Engneerng Measurements 5 1 Common Input Sgnals 6/27/2017 Engneerng Measurements 5 2 1 Analog vs. Dgtal Sgnals 6/27/2017 Engneerng Measurements 5 3 Current
More informationAOA Cooperative Position Localization
AOA Cooperatve Poston Localzaton Jun Xu, Maode Ma and Cho Loo Law Postonng and Wreless echnology Centre Nanyang echnologcal Unversty, Sngapore xujun@pmal.ntu.edu.sg Abstract- In wreless sensor networs,
More informationlocation-awareness of mobile wireless systems in indoor areas, which require accurate
To my wfe Abstract Recently, there are great nterests n the locaton-based applcatons and the locaton-awareness of moble wreless systems n ndoor areas, whch requre accurate locaton estmaton n ndoor envronments.
More informationA Relative Positioning Technique with Spatial Constraints for Multiple Targets Based on Sparse Wireless Sensor Network
Sensors & ransducers, Vol. 158, Issue 11, November 213, pp. 183-189 Sensors & ransducers 213 by IFSA http://www.sensorsportal.com A Relatve Postonng echnque wth Spatal Constrants for Multple argets Based
More informationRange-Based Localization in Wireless Networks Using Density-Based Outlier Detection
Wreless Sensor Network, 010,, 807-814 do:10.436/wsn.010.11097 Publshed Onlne November 010 (http://www.scrp.org/journal/wsn) Range-Based Localzaton n Wreless Networks Usng Densty-Based Outler Detecton Abstract
More informationAFV-P 2U/4U. AC + DC Power Solutions. series. Transient Generation for Disturbance Tests. only. High Performance Programmable AC Power Source
AFV-P seres Hgh Performance Programmable AC Power Source only 2U/4U Intutve Touch Screen HMI Output Frequency up to 15-1000Hz Power Lne Smulatons: Step & Ramp Features Fast Response Tme: 300μs AC Source
More informationNull Steering GPS Array in the Presence of Mutual Coupling
Downloaded from eee.ust.ac.r at 7:59 IRDT on Sunday July 1st 18 [ DOI: 1.68/IJEEE.14..116 ] Null Steerng PS Array n the Presence of Mutual Couplng. Sedghy* (C.A.) 1 Introducton1 Abstract: A null steerng
More informationA Novel GNSS Weak Signal Acquisition Using Wavelet Denoising Method
A Novel GNSS Weak Sgnal Acquston Usng Wavelet Denosng Method Jn Tan, Lu Yang, BeHang Unversty, P.R.Chna BIOGRAPHY Jn Tan s a post-doctor n School of Electronc and Informaton Engneerng, BeHang Unversty,
More informationPervasive and Mobile Computing. Adaptive radio maps for pattern-matching localization via inter-beacon co-calibration
Pervasve and Moble Computng ( ) Contents lsts avalable at ScVerse ScenceDrect Pervasve and Moble Computng journal homepage: www.elsever.com/locate/pmc Adaptve rado maps for pattern-matchng localzaton va
More informationResearch on Controller of Micro-hydro Power System Nan XIE 1,a, Dezhi QI 2,b,Weimin CHEN 2,c, Wei WANG 2,d
Advanced Materals Research Submtted: 2014-05-13 ISSN: 1662-8985, Vols. 986-987, pp 1121-1124 Accepted: 2014-05-19 do:10.4028/www.scentfc.net/amr.986-987.1121 Onlne: 2014-07-18 2014 Trans Tech Publcatons,
More informationAN EFFICIENT ITERATIVE DFT-BASED CHANNEL ESTIMATION FOR MIMO-OFDM SYSTEMS ON MULTIPATH CHANNELS
AN FFICINT ITRATIV DFT-BASD CHANNL STIMATION FOR MIMO-OFDM SYSTMS ON MULTIPATH CHANNLS Jan Hafang Graduate Unversty of the Chnese Academy of Scences Insttute of Semconductors, CAS Beng, Chna hf@sem.ac.cn
More informationModel mismatch and systematic errors in an optical FMCW distance measurement system
Model msmatch and systematc errors n an optcal FMCW dstance measurement system ROBERT GROSCHE ept. of Electrcal Engneerng Ruhr-Unverstät Bochum Unverstätsstrasse 50, -44780 Bochum GERMANY Abstract: - In
More informationAdaptive System Control with PID Neural Networks
Adaptve System Control wth PID Neural Networs F. Shahra a, M.A. Fanae b, A.R. Aromandzadeh a a Department of Chemcal Engneerng, Unversty of Sstan and Baluchestan, Zahedan, Iran. b Department of Chemcal
More informationMTBF PREDICTION REPORT
MTBF PREDICTION REPORT PRODUCT NAME: BLE112-A-V2 Issued date: 01-23-2015 Rev:1.0 Copyrght@2015 Bluegga Technologes. All rghts reserved. 1 MTBF PREDICTION REPORT... 1 PRODUCT NAME: BLE112-A-V2... 1 1.0
More informationCombined Beamforming and Scheduling for High Speed Downlink Packet Access
Combned Beamformng and Schedulng for Hgh Speed Downlnk Packet Access Alexander Seeger Informaton and Communcaton Moble Semens A.G. Hofmannstr.5, 8359 Munch, Germany Alexander.Seeger@semens.com Marcn Skora
More informationPPS Positioning in Weak Signal GPS Environments using a TIDGET Sensor
PPS Postonng n Weak Sgnal GPS Envronments usng a TIDGET Sensor Alson K. Brown, Stephen Stankevch, and Bruce G. Johnson, NAVSYS Corporaton BIOGRAPHY Alson Brown s the Presdent and Chef Executve Offcer of
More informationAdaptive Modulation for Multiple Antenna Channels
Adaptve Modulaton for Multple Antenna Channels June Chul Roh and Bhaskar D. Rao Department of Electrcal and Computer Engneerng Unversty of Calforna, San Dego La Jolla, CA 993-7 E-mal: jroh@ece.ucsd.edu,
More informationAn Alternation Diffusion LMS Estimation Strategy over Wireless Sensor Network
Progress In Electromagnetcs Research M, Vol. 70, 135 143, 2018 An Alternaton Dffuson LMS Estmaton Strategy over Wreless Sensor Network Ln L * and Donghu L Abstract Ths paper presents a dstrbuted estmaton
More informationOn Channel Estimation of OFDM-BPSK and -QPSK over Generalized Alpha-Mu Fading Distribution
Int. J. Communcatons, Network and System Scences, 010, 3, 380-384 do:10.436/jcns.010.34048 Publshed Onlne Aprl 010 (http://www.scrp.org/journal/jcns/) On Channel Estmaton of OFDM-BPSK and -QPSK over Generalzed
More informationSource Localization by TDOA with Random Sensor Position Errors - Part II: Mobile sensors
Source Localzaton by TDOA wth Random Sensor Poston Errors - Part II: Moble sensors Xaome Qu,, Lhua Xe EXOUISITUS, Center for E-Cty, School of Electrcal and Electronc Engneerng, Nanyang Technologcal Unversty,
More informationA Preliminary Study on Targets Association Algorithm of Radar and AIS Using BP Neural Network
Avalable onlne at www.scencedrect.com Proceda Engneerng 5 (2 44 445 A Prelmnary Study on Targets Assocaton Algorthm of Radar and AIS Usng BP Neural Networ Hu Xaoru a, Ln Changchuan a a Navgaton Insttute
More informationFFT Spectrum Analyzer
THE ANNUAL SYMPOSIUM OF THE INSTITUTE OF SOLID MECHANICS SISOM 22 BUCHAREST May 16-17 ----------------------------------------------------------------------------------------------------------------------------------------
More informationEffective SNR Based MIMO Switching in Mobile WiMAX Systems
Effectve SNR Based MIMO Swtcng n Moble WMAX Systems Myoung-Seob Km and Yong-wan Lee Scool of Electrcal Engneerng and INMC, Seoul Natonal Unversty Kwanak P. O. Box, Seoul -600 Korea Emal: mseob@ttl.snu.ac.kr
More informationModeling Power Angle Spectrum and Antenna Pattern Directions in Multipath Propagation Environment
Modelng ower Angle Spectrum and Antenna attern Drectons n Multpath ropagaton Envronment Jan M Kelner and Cezary Zółkowsk Insttute of elecommuncatons, Faculty of Electroncs, Mltary Unversty of echnology,
More informationQueen Bee genetic optimization of an heuristic based fuzzy control scheme for a mobile robot 1
Queen Bee genetc optmzaton of an heurstc based fuzzy control scheme for a moble robot 1 Rodrgo A. Carrasco Schmdt Pontfca Unversdad Católca de Chle Abstract Ths work presents both a novel control scheme
More informationStudy of 2D DOA Estimation for Uniform Circular Array in Wireless Location System
I.J. Computer etwork and Informaton Securty,,, 5- Publshed Onlne December n ECS (http://www.mecs-press.org/) Study of D DOA Estmaton for Unform Crcular Array n Wreless Locaton System Png TA Department
More informationStudy of the Improved Location Algorithm Based on Chan and Taylor
Send Orders for eprnts to reprnts@benthamscence.ae 58 The Open Cybernetcs & Systemcs Journal, 05, 9, 58-6 Open Access Study of the Improved Locaton Algorthm Based on Chan and Taylor Lu En-Hua *, Xu Ke-Mng
More informationSensors for Motion and Position Measurement
Sensors for Moton and Poston Measurement Introducton An ntegrated manufacturng envronment conssts of 5 elements:- - Machne tools - Inspecton devces - Materal handlng devces - Packagng machnes - Area where
More informationPerformance Study of OFDMA vs. OFDM/SDMA
Performance Study of OFDA vs. OFD/SDA Zhua Guo and Wenwu Zhu crosoft Research, Asa 3F, Beng Sgma Center, No. 49, Zhchun Road adan Dstrct, Beng 00080, P. R. Chna {zhguo, wwzhu}@mcrosoft.com Abstract: In
More informationMicro-grid Inverter Parallel Droop Control Method for Improving Dynamic Properties and the Effect of Power Sharing
2015 AASRI Internatonal Conference on Industral Electroncs and Applcatons (IEA 2015) Mcro-grd Inverter Parallel Droop Control Method for Improvng Dynamc Propertes and the Effect of Power Sharng aohong
More informationRECOMMENDATION ITU-R P Multipath propagation and parameterization of its characteristics
Rec. ITU-R P.47-3 RECOMMEDATIO ITU-R P.47-3 Multpath propagaton and parameterzaton of ts characterstcs (Queston ITU-R 3/3) (999-3-5-7) Scope Recommendaton ITU-R P.47 descrbes the nature of multpath propagaton
More informationSide-Match Vector Quantizers Using Neural Network Based Variance Predictor for Image Coding
Sde-Match Vector Quantzers Usng Neural Network Based Varance Predctor for Image Codng Shuangteng Zhang Department of Computer Scence Eastern Kentucky Unversty Rchmond, KY 40475, U.S.A. shuangteng.zhang@eku.edu
More informationAIAA ATTITUDE SENSING USING A GLOBAL-POSITIONING-SYSTEM ANTENNA ON A TURNTABLE
AIAA--3947 ATTITUDE SENSING USING A GLOBAL-POSITIONING-SYSTEM ANTENNA ON A TURNTABLE by Mark L. Psak * Cornell Unversty, Ithaca, N.Y. 4853-75 Abstract A new atttude sensor s proposed that conssts of a
More informationOn the Feasibility of Receive Collaboration in Wireless Sensor Networks
On the Feasblty of Receve Collaboraton n Wreless Sensor Networs B. Bantaleb, S. Sgg and M. Begl Computer Scence Department Insttute of Operatng System and Computer Networs (IBR) Braunschweg, Germany {behnam,
More informationLow Sampling Rate Technology for UHF Partial Discharge Signals Based on Sparse Vector Recovery
017 nd Internatonal Semnar on Appled Physcs, Optoelectroncs and Photoncs (APOP 017) ISBN: 978-1-60595-5-3 Low Samplng Rate Technology for UHF Partal Dscharge Sgnals Based on Sparse Vector Recovery Qang
More informationTunable Wideband Receiver (TWB) Data Processing Description December, 2013
Page 1 of 5 Tunable Wdeband Recever (TWB) Data Processng Descrpton December, 2013 The tunable wdeband recever (TWB) can be manually tuned to any frequency of nterest between 17 and 33 MHz. The recever
More informationChalmers Publication Library. Copyright Notice
Chalmers Publcaton Lbrary Copyrght Notce 202 IEEE. Personal use of ths materal s permtted. However, permsson to reprnt/republsh ths materal for advertsng or promotonal purposes or for creatng new collectve
More informationMultiple Error Correction Using Reduced Precision Redundancy Technique
Multple Error Correcton Usng Reduced Precson Redundancy Technque Chthra V 1, Nthka Bhas 2, Janeera D A 3 1,2,3 ECE Department, Dhanalakshm Srnvasan College of Engneerng,Combatore, Tamlnadu, Inda Abstract
More informationControl of Chaos in Positive Output Luo Converter by means of Time Delay Feedback
Control of Chaos n Postve Output Luo Converter by means of Tme Delay Feedback Nagulapat nkran.ped@gmal.com Abstract Faster development n Dc to Dc converter technques are undergong very drastc changes due
More informationLearning Ensembles of Convolutional Neural Networks
Learnng Ensembles of Convolutonal Neural Networks Lran Chen The Unversty of Chcago Faculty Mentor: Greg Shakhnarovch Toyota Technologcal Insttute at Chcago 1 Introducton Convolutonal Neural Networks (CNN)
More informationRevision of Lecture Twenty-One
Revson of Lecture Twenty-One FFT / IFFT most wdely found operatons n communcaton systems Important to know what are gong on nsde a FFT / IFFT algorthm Wth the ad of FFT / IFFT, ths lecture looks nto OFDM
More informationEnsemble Evolution of Checkers Players with Knowledge of Opening, Middle and Endgame
Ensemble Evoluton of Checkers Players wth Knowledge of Openng, Mddle and Endgame Kyung-Joong Km and Sung-Bae Cho Department of Computer Scence, Yonse Unversty 134 Shnchon-dong, Sudaemoon-ku, Seoul 120-749
More informationAn Improved Weighted Centroid Localization Algorithm
Internatonal Journal of Future Generaton Communcaton an Networng Vol.6, No.5 (203), pp.45-52 http://x.o.org/0.4257/fgcn.203.6.5.05 An Improve Weghte Centro Localzaton Algorthm L Bn, Dou Zheng*, Nng Yu
More informationPulse Extraction for Radar Emitter Location
00 Conference on Informaton Scences and Systems, The Johns opkns Unversty, March 3, 00 Pulse Extracton for Radar Emtter Locaton Mark L. Fowler, Zhen Zhou, and Anupama Shvaprasad Department of Electrcal
More informationA MODIFIED DIRECTIONAL FREQUENCY REUSE PLAN BASED ON CHANNEL ALTERNATION AND ROTATION
A MODIFIED DIRECTIONAL FREQUENCY REUSE PLAN BASED ON CHANNEL ALTERNATION AND ROTATION Vncent A. Nguyen Peng-Jun Wan Ophr Freder Computer Scence Department Illnos Insttute of Technology Chcago, Illnos vnguyen@t.edu,
More informationNew Approach to Achieving Stand Alone GPS Attitude Determination using Dual Short Baselines for Small-Satellite
SSC99-XI- New Approach to Achevng Stand Alone GPS Atttude Determnaton usng Dual Short Baselnes for Small-Satellte S. Purvgrapong, M.S. Hodgart,Y. Hashda, M.J. Unwn Surrey Space Centre, UK Abstract Ths
More informationA Novel UWB Imaging System Setup for Computer- Aided Breast Cancer Diagnosis
A Novel UWB Imagng System Setup for Computer- Aded Breast Cancer Dagnoss Xang He, Ja L, Chenxng Wu Electrcal and Computer Engneerng Oakland Unversty, OU Rochester, I 48309, U.S.A xhe2@oakland.edu, l4@oakland.edu,
More informationA Feasible Approach to the Evaluation of the Tractions of Vehicle Wheels Driven by DC Motors
A Feasble Approach to the Evaluaton of the Tractons of Vehcle Wheels Drven by DC Motors Jeh-Shan Young Insttute of Vehcle Engneerng, Natonal Changhua Unversty of Educaton Changhua, Tawan, R.O.C. and Sheng-You
More informationCoverage Maximization in Mobile Wireless Sensor Networks Utilizing Immune Node Deployment Algorithm
CCECE 2014 1569888203 Coverage Maxmzaton n Moble Wreless Sensor Networs Utlzng Immune Node Deployment Algorthm Mohammed Abo-Zahhad, Sabah M. Ahmed and Nabl Sabor Electrcal and Electroncs Engneerng Department
More informationNOVEL ITERATIVE TECHNIQUES FOR RADAR TARGET DISCRIMINATION
NOVEL ITERATIVE TECHNIQUES FOR RADAR TARGET DISCRIMINATION Phaneendra R.Venkata, Nathan A. Goodman Department of Electrcal and Computer Engneerng, Unversty of Arzona, 30 E. Speedway Blvd, Tucson, Arzona
More information