Preface |
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xiii | |
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Chapter 1 Signals and Waveforms |
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1 | (42) |
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1 | (1) |
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1.2 Signals and Their Processing |
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2 | (14) |
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1.2.1 Analog, Discrete-Time, and Digital Signals |
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2 | (3) |
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1.2.2 Deterministic and Stochastic Signals |
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5 | (8) |
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1.2.3 Basic Operations on Signals |
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13 | (3) |
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1.3 Expansions of Signals |
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16 | (13) |
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1.3.1 Orthogonal Expansions |
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16 | (2) |
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1.3.2 Trigonometric and Exponential Fourier Series |
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18 | (3) |
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1.3.3 Fourier Transform and Its Properties |
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21 | (4) |
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1.3.4 Spectral Distribution of Signal Energy and Power |
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25 | (3) |
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1.3.5 Transmission of Signals Through LTI Systems |
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28 | (1) |
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1.4 Baseband and Bandpass Signals |
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29 | (10) |
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1.4.1 Baseband Signals and Modulation |
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29 | (2) |
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1.4.2 Bandpass Signals and Their Complex-Valued Equivalents |
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31 | (4) |
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1.4.3 Bandwidths of Signals and Circuits |
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35 | (4) |
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39 | (1) |
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40 | (3) |
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43 | (32) |
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43 | (1) |
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2.2 Radio Systems and Radio Spectrum |
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44 | (4) |
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2.2.1 Diversity of Radio Systems |
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44 | (1) |
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2.2.2 RF Spectrum and Its Utilization |
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45 | (3) |
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2.3 Radio Communication Systems |
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48 | (11) |
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48 | (3) |
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2.3.2 Communication Txs and Rxs |
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51 | (4) |
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2.3.3 Channel Coding, Modulation, and Spreading |
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55 | (4) |
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59 | (11) |
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2.4.1 Broadcasting Systems |
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59 | (2) |
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2.4.2 Radio Navigation and Positioning Systems |
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61 | (4) |
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2.4.3 Radio Methods in Positioning and Geolocation |
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65 | (3) |
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2.4.4 Radar and EW Systems |
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68 | (2) |
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70 | (2) |
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72 | (3) |
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Chapter 3 Digital Transmitters |
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75 | (38) |
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75 | (1) |
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76 | (10) |
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3.2.1 Txs of Different Categories of Digital Radios |
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76 | (1) |
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3.2.2 Architecture of a Digital Tx |
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77 | (3) |
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3.2.3 Direct Digital Synthesis |
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80 | (6) |
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86 | (14) |
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3.3.1 Digitization of TDP Input Signals |
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86 | (3) |
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3.3.2 Reconstruction of TDP Output Signals |
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89 | (7) |
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3.3.3 Comparison of Reconstruction Techniques and Conversion Block Architectures |
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96 | (4) |
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3.4 Power Utilization Improvement in Txs |
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100 | (8) |
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3.4.1 Power Utilization in Txs with Energy-Efficient Modulation |
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100 | (2) |
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3.4.2 AQ-DBPSK Modulation |
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102 | (5) |
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3.4.3 Power Utilization in Txs with Bandwidth-Efficient Modulation |
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107 | (1) |
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108 | (1) |
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109 | (4) |
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Chapter 4 Digital Receivers |
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113 | (50) |
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113 | (1) |
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114 | (12) |
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4.2.1 First Steps of Digital Radio Development |
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114 | (3) |
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4.2.2 Main Characteristics of Rxs |
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117 | (5) |
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4.2.3 Digital Rxs and Txs |
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122 | (4) |
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4.3 Dynamic Range of a Digital Rx |
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126 | (14) |
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4.3.1 Factors Limiting Rx Dynamic Range |
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126 | (2) |
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128 | (8) |
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4.3.3 Required Dynamic Range of an HF Rx |
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136 | (4) |
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4.4 Digitization in a Digital Rx |
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140 | (8) |
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4.4.1 Baseband Digitization |
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140 | (2) |
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4.4.2 Bandpass Digitization |
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142 | (3) |
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4.4.3 Comparison of Digitization Techniques and Architectures of AMFs |
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145 | (3) |
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4.5 Demodulation of Energy-Efficient Signals |
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148 | (9) |
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4.5.1 Demodulation of Differential Quadrature Phase-Shift Keying Signals with DS Spreading |
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148 | (3) |
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4.5.2 Demodulation of AQ-DBPSK Signals |
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151 | (6) |
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157 | (2) |
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159 | (4) |
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Chapter 5 Sampling Theory Fundamentals |
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163 | (36) |
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163 | (1) |
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5.2 S&I from a Historical Perspective |
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164 | (5) |
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5.2.1 Need for S&I at the Dawn of Electrical Communications |
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164 | (1) |
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5.2.2 Discovery of Classical Sampling Theorem |
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165 | (2) |
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5.2.3 Sampling Theory After Shannon |
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167 | (2) |
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5.3 Uniform Sampling Theorem for Baseband Signals |
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169 | (18) |
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5.3.1 Sampling Theorem and Its Constructive Nature |
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169 | (8) |
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5.3.2 Interpretations of Sampling Theorem |
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177 | (7) |
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5.3.3 Baseband S&I Corresponding to Indirect Interpretation |
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184 | (3) |
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5.4 Uniform Sampling Theorem for Bandpass Signals |
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187 | (7) |
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5.4.1 Baseband S&I of Bandpass Signals |
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187 | (2) |
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5.4.2 Bandpass S&I of Bandpass Signals |
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189 | (4) |
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5.4.3 Comparison of Baseband and Bandpass S&I of Bandpass Signals |
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193 | (1) |
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194 | (1) |
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195 | (4) |
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Chapter 6 Realization of S&I in Digital Radios |
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199 | (50) |
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199 | (1) |
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6.2 S&I Based on the Sampling Theorem's Indirect Interpretation |
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200 | (7) |
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6.2.1 Sampling Based on the Indirect Interpretation |
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200 | (5) |
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6.2.2 Interpolation Based on the Indirect Interpretation |
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205 | (2) |
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6.3 S&I Based on the Sampling Theorem's Hybrid Interpretation |
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207 | (8) |
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6.3.1 Sampling Based on the Hybrid Interpretation |
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207 | (5) |
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6.3.2 Interpolation Based on the Hybrid Interpretation |
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212 | (3) |
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6.4 S&I Based on the Sampling Theorem's Direct Interpretation |
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215 | (7) |
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6.4.1 Sampling Based on the Direct Interpretation |
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215 | (4) |
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6.4.2 Interpolation Based on the Direct Interpretation |
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219 | (3) |
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6.5 Channel Mismatch Mitigation |
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222 | (4) |
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6.5.1 Approaches to the Problem |
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222 | (1) |
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6.5.2 Separation of Signal and Error Spectra |
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222 | (2) |
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6.5.3 Channel Mismatch Compensation |
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224 | (2) |
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6.6 Selection and Implementation of Weight Functions |
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226 | (8) |
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226 | (3) |
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6.6.2 B-Spline-Based Weight Functions |
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229 | (4) |
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6.6.3 Additional Remarks on Weight Function Implementation |
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233 | (1) |
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6.7 Need for Hybrid and Direct Interpretations |
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234 | (10) |
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6.7.1 Evaluation of Hybrid and Direct Interpretations' Advantages |
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234 | (2) |
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6.7.2 Two-Stage Spatial Suppression of ISs |
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236 | (2) |
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6.7.3 Virtual-Antenna-Motion-Based Spatial Suppression of ISs |
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238 | (6) |
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244 | (2) |
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246 | (3) |
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Chapter 7 Improving Resolution of Quantization |
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249 | (30) |
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249 | (1) |
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7.2 Conventional Quantization |
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249 | (7) |
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7.2.1 Quantization of Rx Input Signals |
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249 | (5) |
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7.2.2 Quantization of Tx Input Signals |
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254 | (2) |
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7.3 Joint Quantization of Samples |
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256 | (8) |
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7.3.1 Principles of Joint Quantization |
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256 | (6) |
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7.3.2 Design Considerations |
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262 | (2) |
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7.4 Compressive Quantization of Images |
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264 | (11) |
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264 | (3) |
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7.4.2 Design Considerations |
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267 | (3) |
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7.4.3 Assessment of Benefits |
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270 | (5) |
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275 | (1) |
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276 | (3) |
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APPENDIX A Functions Used in the Book |
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279 | (8) |
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A.1 Rectangular and Related Functions |
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279 | (2) |
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281 | (4) |
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285 | (2) |
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APPENDIX B Sampling Rate Conversion in Digital Radios |
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287 | (8) |
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B.1 Downsampling by an Integer Factor |
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287 | (1) |
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B.2 Upsampling by an Integer Factor |
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287 | (1) |
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B.3 Sampling Rate Conversion by a Noninteger Factor |
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288 | (2) |
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B.4 Optimization of Sampling Rate Conversion |
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290 | (3) |
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293 | (2) |
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APPENDIX C On the Use of Central Limit Theorem |
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295 | (4) |
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295 | (1) |
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296 | (1) |
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297 | (2) |
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APPENDIX D Sampling Theorem for Bandlimited Signals |
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299 | (6) |
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D.1 Sampling Theorem for Baseband Signals |
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299 | (1) |
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299 | (1) |
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300 | (1) |
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300 | (1) |
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D.2 Sampling Theorem for Bandpass Signals |
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300 | (5) |
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D.2.1 Sampling of Bandpass Signals Represented by I(t) and Q(t) |
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301 | (1) |
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D.2.2 Sampling of Bandpass Signals Represented by U(t) and 6(t) |
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302 | (1) |
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D.2.3 Sampling of Bandpass Signals' Instantaneous Values |
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303 | (2) |
List of Acronyms |
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305 | (6) |
About the Authors |
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311 | (2) |
Index |
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313 | |