ECEIA - Communication Electronics

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1 Coordinating unit: Teaching unit: Academic year: Degree: ECTS credits: EEBE - Barcelona East School of Engineering EEL - Department of Electronic Engineering BACHELOR'S DEGREE IN BIOMEDICAL ENGINEERING (Syllabus 2009). (Teaching unit Optional) BACHELOR'S DEGREE IN INDUSTRIAL ELECTRONICS AND AUTOMATIC CONTROL ENGINEERING (Syllabus 2009). (Teaching unit Optional) BACHELOR'S DEGREE IN BIOMEDICAL ENGINEERING (Syllabus 2009). (Teaching unit Optional) BACHELOR'S DEGREE IN INDUSTRIAL ELECTRONICS AND AUTOMATIC CONTROL ENGINEERING (Syllabus 2009). (Teaching unit Optional) 6 Teaching languages: Catalan, Spanish, English Teaching staff Coordinator: Others: HERMINIO MARTINEZ GARCIA. HERMINIO MARTINEZ GARCIA i d'altres a determinar. Opening hours Timetable: To determine at the semester beginning. It will be announced to the whole students the first week of the course. Degree competences to which the subject contributes Specific: 1. Summarise information and undertake self-directed learning activities. 2. Identify, understand and apply the principles of information and communication systems to healthcare. 3. Design analogue, digital and power systems. 4. Apply their knowledge to industrial informatics and communications. 5. Understand the fundamentals and applications of analogue electronics. 6. Understand the fundamentals and applications of digital electronics and microprocessors. Transversal: 7. EFFECTIVE USE OF INFORMATI0N RESOURCES - Level 3. Planning and using the information necessary for an academic assignment (a final thesis, for example) based on a critical appraisal of the information resources used. Teaching methodology Please, see Spanish or Catalan version. Learning objectives of the subject Please, see Spanish or Catalan version. 1 / 11

2 Study load Total learning time: 150h Hours large group: 45h 30.00% Hours medium group: 0h 0.00% Hours small group: 15h 10.00% Guided activities: 0h 0.00% Self study: 90h 60.00% 2 / 11

3 Content 1.- Introduction to the Electronic Communications with Modulation Techniques. Learning time: 7h 30m Theory classes: 3h Self study : 4h 30m Introduction. Necessity of information transmission Historical development of electronic communications Physical transmission media. General characteristics and electrical model of a transmission line Twisted pair Coaxial cable Optic Fiber (OF) Wireless Microwave Infrared Types of transmission Direct digital baseband transmission Carrier modulation transmission. Broadband transmission Introduction to the modulation process in modem communications Definition of 'modulation' Spectrum of electromagnetic waves Complex periodic signals: Review of the analysis and Fourier series Fourier theorem Type of modulation Electrical noise Types and sources of electrical noise SNR or signal-to-noise ratio. 3 / 11

4 2.- Linear Modulation: Amplitude Modulation (A.M.). Learning time: 18h 15m Theory classes: 5h Self study : 11h 15m Definition of 'amplitude modulation' Mathematical study of AM modulation process Types of amplitude modulations Frequency spectrum of DSBLC (double side band with large carrier) modulation Advantages of carrier suppression: DSBSC (double side band with suppressed carrier) modulation Advantages and disadvantages of systems with SSB (single side band) modulation Vestigial band modulation Reminder of the Fourier transform Frequency translation theorem Modulation theorem Energy density spectra: theorems of Parseval and Plancharel. 4 / 11

5 3.- Electronic Circuitis and Systems for Transmitting and Receiving Equipments with AM Modulation. Learning time: 20h 15m Theory classes: 6h Laboratory classes: 3h Self study : 11h 15m Introduction to electronic circuits and systems for equipment with modulation AM transmitters and receivers AM modulator circuits AM modulators with suppressed carrier DSB modulators SSB modulators AM demodulator circuits Synchronous (or coherent) demodulation/detection Envelope detector with diode and transistor or RC network (asynchronous demodulation) radio receiver circuits Historical overview to radio receivers Technical design of old receivers Homodin receivers o tuned radio-frequency (TRF) receivers Regenerative receivers Super-regenerative receivers Reflex receivers Autodin receivers Heterodyne receivers Technical design of modern radio receivers Superheterodine receivers Dual conversion superheterodine receivers Features and parameters of receivers: sensitivity, selectivity, distortion, dynamic range, fidelity, insertion loss, noise temperature, noise equivalent temperature, etc Complete structure of AM radio receivers. 5 / 11

6 4.- Angular or Exponential Modulation: Frequency Modulation (FM) and Phase Modulation (PM). Learning time: 16h Theory classes: 5h Definition of 'angular modulation' Types of angular modulations Frequency Modulation (FM) Narrowband FM Bandwidth FM Phase Modulation (PM) Mathematical Study of FM modulation process FM frequency spectrum Modulation with a sinusoidal modulating signal Total power transmitted and power distribution between the different components of the FM spectrum Modulation with a rectangular modulating signal Bandwidth estimation for an FM signal in the case of a general modulating waveform. Carson rule. 6 / 11

7 5.- Electronic Circuits and Systems for Transmitting and Receiving Equipments with FM modulation. Learning time: 17h Theory classes: 6h Introduction to the electronic circuits and systems for transmitters and receiving equipments with FM modulation The varicap (or varactor) diode Operation and characteristics Application circuits in Electronics and Communications FM modulator circuits The VCO as basic FM modulator block Application circuits of the varactor diode in FM modulators PLL (or phase-locked loop) circuits Introduction to PLL circuits Overview, and classification block diagram of PLL circuits Principle of operation of a PLL circuit Transfer curve and definition of parameters Operation at the acquisition phase Modelling of a basic linear PLL circuit Applications of PLL circuits. Study of electronic PLL circuits Multipliers, dividers and frequency synthesizers Tone Detector and signal filtering in noisy environment Applications in electronic communications. Signal modulation and demodulation Typical commercial PLLs in the form of integrated circuits The integrated circuit LM565 and HEF4046 as examples Limitations of PLL circuits FM demodulator circuits Slope detector or discriminator Balanced slope detector Foster-Seeley discriminator Demodulation of FM signals based on PLL circuitry Mono-stereo FM multiplex system (FM stereo) Complete structure of FM radio receivers. 7 / 11

8 6.- Pulse Modulations and Digital Communications. Learning time: 16h Theory classes: 5h Definition of 'pulse modulation' Types of pulse modulations Pulse-amplitude modulation (PAM) Pulse-witdh modulation (PWM) Pulse-duration modulation (PDM) Pulse-code modulation (PCM) PAM modulator circuit Spectrum of a PAM modulated signal Detection of PAM signals PWM modulation and demodulation PCM modulation and demodulation Delta PCM modulation Adaptive Delta PCM modulation. 7.- Introduction to Propagation of Radio Waves. Learning time: 12h Theory classes: 3h Introduction Electromagnetic waves and electromagnetic radiation Propagation of radio waves in free space Attenuation and losses of radio waves Optical and radio horizons The behavior of radio waves: reflection, refraction, diffraction and scattering of radio waves Modes of propagation of radio waves GW (or 'ground wave') propagation SW (or 'sky wave') propagation LOS (or 'line-of-sight') propagation Propagation in a mobile and portable environment Repeaters and cellular systems Other modes of propagation Fading of radio signals. 8 / 11

9 8.- Introduction to the Transmitting and Receiving Antennas Learning time: 12h Theory classes: 3h Introduction Simple antenna Characteristics of antennas: polarization and radiation pattern of an antenna, characteristic impedance and resistance of an antenna Other simple antennas Half-wave dipole Grounded antenna Antenna components and reflective elements. The Yagi-Uda arrangement Antenna load Antennas for UHF, microwave and mobile telephony Guided waves. 9.- Applications of Modulation Techniques to Electronic Communication Systems. Learning time: 15h 30m Theory classes: 4h 30m Multiplexing techniques Frequency-division multiplexing (FDM) Time-division multiplexing (TDM) Frequency hopping multiplexing Code division multiplexing (CDM) Applications of the single sideband (SSB) systems Simultaneous transmission of signals through a coaxial cable with FDM Transmission of high frequency signals through power lines Channels for different radio and TV services FM Communications industry. Bands assigned to other communication services Introduction to analog TV and analog image processing Introduction to mobile telephony. 9 / 11

10 10.- Digital Modulations and Communication MODEMs. Learning time: 15h 30m Theory classes: 4h 30m Introduction. Communication modem elements Classification of communication modems Data compression Operation and basic modulations of low-speed modems ASK ('amplitude shift keying') and OOK ('on-off keying') modulations FSK ('frequency shift keying') modulation PSK ('phase shift keying') modulation Main types of digital modulation used in high-speed modems Quadrature PSK (QPSK) modulation M-state PSK (M-PSK) modulation M-state amplitude and phase shift keying (M-APK) modulation Asynchronous and synchronous modems Type of asynchronous modems Synchronous modems. V.xx recommendations Standard computer-modem connection MNP ('microcomputer networking protocol') protocols. Qualification system Please, see Spanish or Catalan version. Regulations for carrying out activities Please, see Spanish or Catalan version. 10 / 11

11 Bibliography Basic: Blake, R. Sistemas electrónicos de comunicaciones. 2ª ed. México: Thomson, ISBN Tomasi, W. Sistemas de comunicaciones electrónicas. 4ª ed. México [etc.]: Pearson Educación, ISBN Faúndez Zanuy, M. Sistemas de comunicaciones. Barcelona: Marcombo Boixareu, ISBN Complementary: Faúndez Zanuy, M. Circuitos electrónicos para sistemas de comunicaciones. [Barcelona]: Cano Pina : CEYSA, cop ISBN Jardón Aguilar, H. Fundamentos de los sistemas modernos de comunicación. México: Alfaomega : Marcombo Boixareu, cop ISBN Others resources: Hyperlink Moodle ATENEA: 11 / 11

B.Tech II Year II Semester (R13) Supplementary Examinations May/June 2017 ANALOG COMMUNICATION SYSTEMS (Electronics and Communication Engineering)

Code: 13A04404 R13 B.Tech II Year II Semester (R13) Supplementary Examinations May/June 2017 ANALOG COMMUNICATION SYSTEMS (Electronics and Communication Engineering) Time: 3 hours Max. Marks: 70 PART A