Digital Communications 2
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Digital Communications 2: Directed and Practical Work

Digital Communications 2: Directed and Practical Work

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International Edition


About the Book

It is a complete training in digital communications in the same book with all the aspects involved in such training: courses, tutorials with many typical problems targeted with detailed solutions, practical work concretely illustrating various aspects of technical implementation implemented. It breaks down into three parts. The Theory of information itself, which concerns both the sources of information and the channels of its transmission, taking into account the errors they introduce in the transmission of information and the means of protect by the use of appropriate coding methods. Then for the technical aspects of transmission, first the baseband transmission is presented with the important concept and fundamental technique of equalization. The performance evaluation in terms of probability of errors is systematically developed and detailed as well as the online codes used. Finally, the third part presents the Transmissions with digital modulation of carriers used in radio transmissions but also on electric cables. A second important aspect in learning a learner's knowledge and skills is this book. It concerns the "Directed Work" aspect of a training. This is an ordered set of 33 typical problems with detailed solutions covering the different parts of the course with practical work. Finally, the last aspect concerns the practical aspects in the proper sense of the term, an essential complement to training going as far as know-how. We propose here a set of 5 practical works.

Table of Contents:
Foreword ix Part 1. Tutorials 1 Chapter 1. Theory of Information: Problems 1 to 15 3 1.1. Problem 1 – Entropy 3 1.2. Problem 2 – K-order extension of a transmission channel 6 1.3. Problem 3 – Compressed speech digital transmission and Huffman coding 11 1.4. Problem 4 – Coding without and with information compression 13 1.5. Problem 5 – Digital transmission of a TV signal (luminance component only) with information compression and Huffman coding 17 1.6. Problem 6 – Information, entropy, codes (1) 21 1.7. Problem 7 – Information, entropy, codes (2) 27 1.8. Problem 8 – Coding and transmission of a television-type information source 34 1.9. Problem 9 – Entropy and motion information encoding of multimedia source 42 1.10. Problem 10 – Hamming coding 47 1.11. Problem 11 – Cyclic coding (1) 53 1.12. Problem 12 – Cyclic coding (2) 60 1.13. Problem 13 – Cyclic coding and Hamming coding (1) 66 1.14. Problem 14 – Cyclic coding and Hamming coding (2) 69 1.15. Problem 15 – Cyclic code, M-sequences, and Gold sequences 75 Chapter 2. Baseband Digital Transmission: Problems 16 to 26 83 2.1. Problem 16 – Entropy and information to signal source coding 83 2.2. Problem 17 – Calculation of autocorrelation function and power spectral density by probabilistic approach of RZ and NRZ binary on-line codes 89 2.3. Problem 18 – Calculation of the autocorrelation function and the power spectral density by probabilistic approach of the bipolar RZ code 108 2.4. Problem 19 – Transmission using a partial response linear coding 124 2.5. Problem 20 – Signal information coding and digital transmissions with partial response linear encoder 129 2.6. Problem 21 – Baseband digital transmission system (1) 135 2.7. Problem 22 – Baseband digital transmission (2) 144 2.8. Problem 23 – M-ary digital baseband transmission 152 2.9. Problem 24 – Baseband digital transmission of bipolar coded information 163 2.10. Problem 25 – Baseband transmission and reception using a partial response linear coding (1) 181 2.11. Problem 26 – Baseband transmission and reception using a partial response linear coding (2) 189 Chapter 3. Digital Transmissions with Carrier Modulation: Problems 27 to 33 199 3.1. Problem 27 – Digital transmissions with carrier modulation 199 3.2. Problem 28 – 4-QAM digital modulation transmission (1) 209 3.3. Problem 29 – Digital transmissions with 2-ASK modulation 219 3.4. Problem 30 – 4-QAM digital modulation transmission (2) 226 3.5. Problem 31 – Digital transmissions with 4-QAM digital modulation: case of single and double paths propagation 235 3.6. Problem 32 – Performance of digital modulations and 16-QAM digital modulation 245 3.7. Problem 33 – QAM encoding and transmission of motion information of digital video 253 Part 2. Practical Works 265 Chapter 4. Study of the Transmission of Digital Information on Two-wire Cables 267 4.1. Introduction 267 4.2. Recall of essential results on transmission line theory 268 4.3. Practical study 269 4.4. Objectives 270 4.5. Measurement of the characteristic impedance Zc by a reflectometry method (Time Domain Reflectometry: TDR) 270 4.6. Measurement of attenuation α as a function of frequency 271 4.7. Variation of the attenuation α as a function of length 271 4.8. Measurement of the bitrate D (bit/s) 272 Chapter 5. Study of Baseband Digital Transmission Systems for the Transmission of Analog Signals (Transmitter and Receiver) 273 5.1. Objectives 273 5.2. First part – Study of a pulse amplitude modulation and time division multiplex signal transmission system 274 5.2.1. Experimental study 275 5.3. Second part – Study of a pulse code modulation (PCM) signal transmission system and transmission error control (error detector code and error corrector code) 277 5.3.1. Experimental study 280 Chapter 6. Study of On-line Codes for Baseband Modulation and Carrier Modulation 283 6.1. Objectives 283 6.2. Description of the electronic boards 283 6.3. First part – Study of on-line codes for baseband digital transmission 285 6.3.1. Experimental part 285 6.4. Second part – Study of digital modulations with carrier 286 6.4.1. Amplitude shift keying modulation (ASK) 286 6.4.2. Digital frequency shift modulation (FSK) 287 6.4.3. Phase shift keying modulation (PSK) 288 Chapter 7. Study of a QPSK Modem Under MATLAB, Simulink, Communications and DSP 291 7.1. Objective 291 7.2. Required work 292 7.3. Appendix: Diagrams of the QPSK modem and its different blocks 293 Chapter 8. Study of a Coding and Decoding System by Cyclic Codes 297 8.1. Objective 297 8.2. Recall of the principles of cyclic coding and decoding 297 8.3. Coding by division: systematic code 298 8.4. Decoding by division: principle of calculating the syndrome 299 8.5. Required work 300 8.6. Appendix: Block diagrams 301 References 305 Index 307


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Product Details
  • ISBN-13: 9781786305428
  • Publisher: ISTE Ltd and John Wiley & Sons Inc
  • Publisher Imprint: ISTE Ltd and John Wiley & Sons Inc
  • Height: 234 mm
  • No of Pages: 336
  • Returnable: N
  • Sub Title: Directed and Practical Work
  • Width: 156 mm
  • ISBN-10: 1786305429
  • Publisher Date: 01 Dec 2020
  • Binding: Hardback
  • Language: English
  • Returnable: N
  • Spine Width: 19 mm
  • Weight: 689 gr


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