Digital Communications 2: Directed and Practical Work

ISBN-13: 9781786305428 / Angielski / Twarda / 2020 / 336 str.

El Assad, Safwan

Spis treści

Foreword ixPart 1. Tutorials 1Chapter 1. Theory of Information: Problems 1 to 15 31.1. Problem 1 - Entropy 31.2. Problem 2 - K-order extension of a transmission channel 61.3. Problem 3 - Compressed speech digital transmission and Huffman coding 111.4. Problem 4 - Coding without and with information compression 131.5. Problem 5 - Digital transmission of a TV signal (luminance component only) with information compression and Huffman coding 171.6. Problem 6 - Information, entropy, codes (1) 211.7. Problem 7 - Information, entropy, codes (2) 271.8. Problem 8 - Coding and transmission of a television-type information source 341.9. Problem 9 - Entropy and motion information encoding of multimedia source 421.10. Problem 10 - Hamming coding 471.11. Problem 11 - Cyclic coding (1) 531.12. Problem 12 - Cyclic coding (2) 601.13. Problem 13 - Cyclic coding and Hamming coding (1) 661.14. Problem 14 - Cyclic coding and Hamming coding (2) 691.15. Problem 15 - Cyclic code, M-sequences, and Gold sequences 75Chapter 2. Baseband Digital Transmission: Problems 16 to 26 832.1. Problem 16 - Entropy and information to signal source coding 832.2. Problem 17 - Calculation of autocorrelation function and power spectral density by probabilistic approach of RZ and NRZ binary on-line codes 892.3. Problem 18 - Calculation of the autocorrelation function and the power spectral density by probabilistic approach of the bipolar RZ code 1082.4. Problem 19 - Transmission using a partial response linear coding 1242.5. Problem 20 - Signal information coding and digital transmissions with partial response linear encoder 1292.6. Problem 21 - Baseband digital transmission system (1) 1352.7. Problem 22 - Baseband digital transmission (2) 1442.8. Problem 23 - M-ary digital baseband transmission 1522.9. Problem 24 - Baseband digital transmission of bipolar coded information 1632.10. Problem 25 - Baseband transmission and reception using a partial response linear coding (1) 1812.11. Problem 26 - Baseband transmission and reception using a partial response linear coding (2) 189Chapter 3. Digital Transmissions with Carrier Modulation: Problems 27 to 33 1993.1. Problem 27 - Digital transmissions with carrier modulation 1993.2. Problem 28 - 4-QAM digital modulation transmission (1) 2093.3. Problem 29 - Digital transmissions with 2-ASK modulation 2193.4. Problem 30 - 4-QAM digital modulation transmission (2) 2263.5. Problem 31 - Digital transmissions with 4-QAM digital modulation: case of single and double paths propagation 2353.6. Problem 32 - Performance of digital modulations and 16-QAM digital modulation 2453.7. Problem 33 - QAM encoding and transmission of motion information of digital video 253Part 2. Practical Works 265Chapter 4. Study of the Transmission of Digital Information on Two-wire Cables 2674.1. Introduction 2674.2. Recall of essential results on transmission line theory 2684.3. Practical study 2694.4. Objectives 2704.5. Measurement of the characteristic impedance Zc by a reflectometry method (Time Domain Reflectometry: TDR) 2704.6. Measurement of attenuation alpha as a function of frequency 2714.7. Variation of the attenuation alpha as a function of length 2714.8. Measurement of the bitrate D (bit/s) 272Chapter 5. Study of Baseband Digital Transmission Systems for the Transmission of Analog Signals (Transmitter and Receiver) 2735.1. Objectives 2735.2. First part - Study of a pulse amplitude modulation and time division multiplex signal transmission system 2745.2.1. Experimental study 2755.3. Second part - Study of a pulse code modulation (PCM) signal transmission system and transmission error control (error detector code and error corrector code) 2775.3.1. Experimental study 280Chapter 6. Study of On-line Codes for Baseband Modulation and Carrier Modulation 2836.1. Objectives 2836.2. Description of the electronic boards 2836.3. First part - Study of on-line codes for baseband digital transmission 2856.3.1. Experimental part 2856.4. Second part - Study of digital modulations with carrier 2866.4.1. Amplitude shift keying modulation (ASK) 2866.4.2. Digital frequency shift modulation (FSK) 2876.4.3. Phase shift keying modulation (PSK) 288Chapter 7. Study of a QPSK Modem Under MATLAB, Simulink, Communications and DSP 2917.1. Objective 2917.2. Required work 2927.3. Appendix: Diagrams of the QPSK modem and its different blocks 293Chapter 8. Study of a Coding and Decoding System by Cyclic Codes 2978.1. Objective 2978.2. Recall of the principles of cyclic coding and decoding 2978.3. Coding by division: systematic code 2988.4. Decoding by division: principle of calculating the syndrome 2998.5. Required work 3008.6. Appendix: Block diagrams 301References 305Index 307

O autorze

El Assad Safwan, Associate Professor HDR at the University of Nantes Barba Dominique, Former Professor of the University of Nantes / Polytech Nantes