Digital modulation techniques

liyuanliu

Digital Modulation Techniques
Fuqin Xiong----作者
内容如下：
Chapter 1. Introduction 1
1.1 Digital Communication Systems 1
1.2 Communication Channels 4
1.2.1 Additive White Gaussian Noise Channel 4
1.2.2 Bandlimited Channel 6
1.2.3 Fading Channel 7
1.3 Basic Modulation Methods 7
1.4 Criteria of Choosing Modulation Schemes 9
1.4.1 Power Efficiency 10
1.4.2 Bandwidth Efficiency 10
1.4.3 System Complexity 11
1.5 Overview of Digital Modulation Schemes 12
References 15
Chapter 2. Baseband Modulation (Line Codes) 17
2.1 Differential Coding 18
2.2 Description of Line Codes 22
2.2.1 Nonreturn-to-Zero Codes 25
2.2.2 Return-to-Zero Codes 25
2.2.3 Pseudoternary Codes (including AMI) 26
2.2.4 Biphase Codes (including Manchester) 27
2.2.5 Delay Modulation (Miller Code) 27
2.3 Power Spectral Density of Line Codes 28
2.3.1 PSD of Nonreturn-to-Zero Codes 30
2.3.2 PSD of Return-to-Zero Codes 34
2.3.3 PSD of Pseudoternary Codes 35
2.3.4 PSD of Biphase Codes 37
2.3.5 PSD of Delay Modulation 4

2.4 Bit Error Rate of Line Codes 43
2.4.1 BER of Binary Codes 44
2.4.2 BER of Pseudoternary Codes 49
2.4.3 BER of Biphase Codes 54
2.4.4 BER of Delay Modulation 57
2.5 Substitution Line Codes 57
2.5.1 Binary N-Zero Substitution Codes 58
2.5.2 High Density Bipolar n Codes 60
2.6 Block Line Codes 62
2.6.1 Coded Mark Inversion Codes 63
2.6.2 Differential Mode Inversion Codes 69
2.6.3 mBnB Codes 71
2.6.4 mB1C Codes 74
2.6.5 DmB1M Codes 76
2.6.6 PFmB(m+1)B Codes 77
2.6.7 kBnT Codes 78
2.7 Summary 81
References 83
Chapter 3. Frequency Shift Keying 87
3.1 Binary FSK 87
3.1.1 Binary FSK Signal and Modulator 87
3.1.2 Power Spectral Density 92
3.2 Coherent Demodulation and Error Performance 95
3.3 Noncoherent Demodulation and Error Performance 98
3.4 M-ary FSK 102
3.4.1 MFSK Signal and Power Spectral Density 102
3.4.2 Modulator, Demodulator,
and Error Performance 104
3.5 Demodulation Using Discriminator 115
3.6 Synchronization 121
3.7 Summary 121
References 122
Chapter 4. Phase Shift Keying 123
4.1 Binary PSK 123
4.2 Differential BPSK 129
4.3 M-ary PSK 136
4.4 PSD of MPSK 146
4.5 Differential MPSK 148
4.6 Quadrature PSK 154
4.8 Offset QPSK 167
4.9 pi/4-QPSK 170
4.10 Synchronization 179
4.10.1 Carrier Recovery 179
4.10.2 Clock Recovery 183
4.10.3 Effects of Phase and Timing Error 186
4.11 Summary 187
4.12 Appendix 4A 190
References 192
Chapter 5. Minimum Shift Keying and MSK-Type Modulations 195
5.1 Description of MSK 196
5.1.1 MSK Viewed as a Sinusoidal Weighted OQPSK 196
5.1.2 MSK Viewed as a Special Case of CPFSK 201
5.2 Power Spectrum and Bandwidth 203
5.2.1 Power Spectral Density of MSK 203
5.2.2 Bandwidth of MSK and Comparison with PSK 204
5.3 Modulator 207
5.4 Demodulator 210
5.5 Synchronization 214
5.6 Error Probability 216
5.7 Serial MSK 219
5.7.1 SMSK Description 219
5.7.2 SMSK Modulator 221
5.7.3 SMSK Demodulator 223
5.7.4 Conversion and Matched Filter Implementation 227
5.7.5 Synchronization of SMSK 231
5.8 MSK-Type Modulation Schemes 231
5.9 Sinusoidal Frequency Shift Keying 236
5.10 Simon's Class of Symbol-Shaping Pulses 240
5.11 Rabzel and Pathupathy's Symbol-Shaping Pulses 247
5.12 Bazin's Class of Symbol-Shaping Pulses 250
5.13 MSK-Type Signal's Spectral Main Lobe 254
5.14 Summary 256
References 257
Chapter 6. Continuous Phase Modulation 259
6.1 Description of CPM 260
6.1.1 Various Modulating Pulse Shapes 261
6.1.2 Phase and State of the CPM Signal 265


Chapter 7. Multi-h Continuous Phase Modulation 351
7.1 MHPM Signal, Phase Tree, and Trellis 351
7.2 Power Spectral Density 361
7.3 Distance Properties and Error Probability 366
7.4 Modulator 382
7.5 Demodulator and Synchronization 382
7.5.1 A Simple ML Demodulator for Multi-h
Binary CPFSK 382
ix
7.5.2 Joint Demodulation and Carrier
Synchronization of Multi-h CPFSK 388
7.5.3 Joint Carrier Phase Tracking and Data
Detection of Multi-h CPFSK 392
7.5.4 Joint Demodulation, Carrier Synchronization,
and Symbol Synchronization of M-ary
Multi-h CPFSK 393
7.5.5 Synchronization of MHPM 398
7.6 Improved MHPM Schemes 399
7.6.1 MHPM with Asymmetrical Modulation Indexes 400
7.6.2 Multi-T Realization of Multi-h Phase Codes 401
7.6.3 Correlatively Encoded Multi-h Signaling
Technique 401
7.6.4 Nonlinear Multi-h CPFSK 403
7.7 Summary 403
7.8 Appendix 7A 404
References 408
Chapter 8. Quadrature Amplitude Modulation 411
8.1 M-ary Amplitude Modulation 411
8.1.1 Power Spectral Density 412
8.1.2 Optimum Detection and Error Probability 414
8.1.3 Modulator and Demodulator for Bandpass MAM 418
8.1.4 On-Off Keying 421
8.2 QAM Signal Description 422
8.3 QAM Constellations 426
8.3.1 Square QAM 429
8.4 Power Spectral Density 432
8.5 Modulator 434
8.6 Demodulator 436
8.7 Error Probability 438
8.8 Synchronization 441
8.9 Differential Coding in QAM 448
8.10 Summary 454
8.11 Appendix 8A 455
References 457
Chapter 9. Nonconstant-Envelope Bandwidth-Efficient
Modulations 459
9.1 Two-Symbol-Period Schemes and Optimum
Demodulator 460
9.2 Quasi-Bandlimited Modulation 465
9.3 QORC, SQORC, and QOSRC 471
9.4 IJF-OQPSK and TSI-OQPSK 478
x
9.5 Superposed-QAM 490
9.6 Quadrature Quadrature PSK 498
9.7 Summary 515
References 515
Chapter 10. Performance of Modulations in Fading Channels 517
10.1 Fading Channel Characteristics 518
10.1.1 Channel Characteristics 518
10.1.2 Channel Classification 521
10.1.3 Fading Envelope Distributions 524
10.2 Digital Modulation in Slow, Flat Fading Channels 527
10.2.1 Rayleigh Fading Channel 527
10.2.2 Rician Fading Channel 531
10.3 Digital Modulation in Frequency Selective Channels 533
10.4 pi/4-DQPSK in Fading Channels 544
10.5 MHPM in Fading Channels 548
10.6 QAM in Fading Channels 554
10.6.1 Square QAM 555
10.6.2 Star QAM 558
10.7 Remedial Measures Against Fading 560
10.8 Summary 563
References 564
Appendix A. Power Spectral Densities of Signals 567
A.1 Bandpass Signals and Spectra 567
A.2 Bandpass Stationary Random Process and PSD 569
A.3 Power Spectral Densities of Digital Signals 572
A.3.1 Case 1: Data Symbols Are Uncorrelated 574
A.3.2 Case 2: Data Symbols Are Correlated 576
A.4 Power Spectral Densities of Digital Bandpass Signals 577
A.5 Power Spectral Densities of CPM Signals 580
References 586
Appendix B. Detection of Signals 589
B.1 Detection of Discrete Signals 589
B.1.1 Binary Hypothesis Test 589
B.1.2 Decision Criteria 590
B.1.3 M Hypotheses 594
B.2 Detection of Continuous Signals With Known Phases 596
B.2.1 Detection of Binary Signals 596
B.2.2 Decision of M-ary Signals 608

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dsp2008

Library of Congress Cataloging-in-Publication Data
Xiong, Fuqin.
Digital modulation techniques / Fuqin Xiong.
p. cm. - (Artech House telecommunications library)
Includes bibliographical references and index.
ISBN 0-89006-970-0 (alk. paper)
1. Digital modulation. I. Title. II. Series.
TK5103.7.X65 2000 99-058091
621.3815'36 - dc21 CIP
British Library Cataloguing in Publication Data
Xiong, Fuqin
Digital modulation techniques. - (Artech House
telecommunications library)
1. Digital modulation
I. Title
621.3'81536
ISBN 0-89006-970-0
Cover design by Igor Valdman
© 2000 ARTECH HOUSE, INC.
685 Canton Street
Norwood, MA 02062
All rights reserved. Printed and bound in the United States of America. No part of this book
may be reproduced or utilized in any form or by any means, electronic or mechanical, including
photocopying, recording, or by any information storage and retrieval system, without
permission in writing from the publisher.
All terms mentioned in this book that are known to be trademarks or service marks have been
appropriately capitalized. Artech House cannot attest to the accuracy of this information. Use of
a term in this book should not be regarded as affecting the validity of any trademark or service
mark.
International Standard Book Number: 0-89006-970-0
Library of Congress Catalog Card Number: 99-058091

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