Time-frequency Transforms for Radar Imaging and Signal AnalysisArtech House, 2002 - 232 σελίδες Here's an innovative hands-on book on time-frequency transforms for radar imaging and signal analysis. It teaches you more efficient ways to extract dispersive scattering features; detect and extract weak signals in noise; form clear radar images; estimate parameters and perform motion compensation; detect and track moving targets in the synthetic aperture radar; and analyze vibration and rotation induced micro-Doppler. This unique resource introduces a new image formation algorithm based on time-frequency-transforms, showing its advantage over the more conventional Fourier-based image formation. Referenced with over 170 equations and 80 illustrations, the book presents new algorithms that help improve the result of radar imaging and signal processing. Moreover, the authors discuss future trends in time-frequency to analyze micro-Doppler, and provide you with a newly developed time-frequency approach to radar signal and image processing to help you solve problems associated with conventional approaches. |
Περιεχόμενα
Introduction | 1 |
11 Electromagnetic BackScattering from Targets | 6 |
12 Radar Signal and Noise | 9 |
122 The SNR | 11 |
13 Radar Ambiguity Function and Matched Filter | 13 |
132 Matched Filter | 17 |
133 Pulse Compression | 19 |
14 Synthetic Aperture Radar Imaging | 20 |
55 Radar Imaging of Multiple Targets | 113 |
552 TimeFrequencyBased Phase Compensation for Multiple Targets | 117 |
553 TimeFrequencyBased Image Formation for Radar Imaging of Multiple Targets | 119 |
56 Summary | 120 |
Motion Compensation in ISAR Imaging Using TimeFrequency Techniques | 123 |
61 Motion Compensation Algorithms | 124 |
62 TimeFrequencyBased Motion Compensation | 126 |
621 Estimating Phase Using Adaptive TimeFrequency Projection | 128 |
141 Range Profile | 21 |
143 CrossRange Resolution | 22 |
TimeFrequency Transforms | 25 |
21 Linear TimeFrequency Transforms | 26 |
211 The STFT | 28 |
212 The CWT | 32 |
213 Adaptive TimeFrequency Representation | 33 |
22 Bilinear TimeFrequency Transforms | 36 |
221 The WVD | 37 |
222 Cohens Class | 39 |
223 The TFDS | 42 |
References | 45 |
Detection and Extraction of Signal in Noise | 47 |
31 Introduction | 48 |
33 SNR Improvement in the TimeFrequency Domain | 51 |
331 SNR Definition Suitable for Signal Detection and Extraction | 54 |
332 SNR in the Joint TimeFrequency Domain | 56 |
34 CFAR Detection in the Joint TimeFrequency Domain | 57 |
35 Signal Extraction in the Joint TimeFrequency Domain | 61 |
352 TimeFrequency Masking and Signal Extraction | 62 |
References | 63 |
TimeFrequency Analysis of Radar Range Profiles | 65 |
41 Electromagnetic Phenomenology Embedded in BackScattered Data | 66 |
42 TimeFrequency Representation of Range Profiles | 70 |
43 Application of HighResolution TimeFrequency Techniques to Scattering Data | 77 |
432 Use of the TFDS | 79 |
433 Windowed Superresolution Algorithm | 81 |
434 Adaptive Gaussian Representation | 83 |
44 Extraction of Dispersive Scattering Features from Radar Imagery Using TimeFrequency Processing | 85 |
References | 89 |
TimeFrequencyBased Radar Image Formation | 93 |
51 Radar Imaging of Moving Targets | 94 |
52 Standard Motion Compensation and FourierBased Image Formation | 102 |
53 TimeFrequencyBased Image Formation | 104 |
54 Radar Imaging of Maneuvering Targets | 107 |
542 Radar Imaging of Maneuvering Target Using TimeFrequency Based Image Formation | 108 |
622 Motion Error Elimination | 129 |
63 Motion Compensation Examples of Simulated and Measured Data | 131 |
64 Presence of 3D Target Motion | 135 |
References | 144 |
SAR Imaging of Moving Targets | 147 |
71 Radar Returns of Moving Targets | 148 |
711 Range Curvature | 149 |
712 Clutter Bandwidth | 150 |
713 Analysis of Radar Returns from Moving Targets | 152 |
72 The Effect of Target Motion on SAR Imaging | 155 |
73 Detection and Imaging of Moving Targets | 157 |
732 MultipleAntenna SAR | 161 |
74 SAR Imaging of Moving Targets Using TimeFrequency Transforms | 165 |
741 Estimation of Doppler Parameters Using TimeFrequency Transforms | 166 |
742 TimeFrequencyBased SAR Image Formation for Detection of Moving Targets | 168 |
References | 170 |
TimeFrequency Analysis of MicroDoppler Phenomenon | 173 |
81 VibrationInduced MicroDoppler | 174 |
811 TimeFrequency Signature of a Vibrating Scatterer | 177 |
812 An Example of MicroDoppler Signatures of Moving Targets | 179 |
82 RotationInduced MicroDoppler | 181 |
823 TimeDomain Signatures of RotationInduced Modulations | 184 |
824 FrequencyDomain Signatures | 188 |
825 TimeFrequency Signatures | 190 |
References | 192 |
Trends in TimeFrequency Transforms for Radar Applications | 193 |
92 BackScattering Feature Extraction | 194 |
93 Image Formation | 195 |
95 Moving Target Detection | 196 |
96 MicroDoppler Analysis | 198 |
| 199 | |
List of Acronyms | 203 |
About the Authors | 205 |
| 207 | |
Άλλες εκδόσεις - Προβολή όλων
Time-frequency Transforms for Radar Imaging and Signal Analysis Victor C. Chen,Hao Ling Περιορισμένη προεπισκόπηση - 2002 |
Συχνά εμφανιζόμενοι όροι και φράσεις
Aerospace and Electronic aircraft ambiguity function amplitude Antennas Propagat applying back-scattered data bandwidth basis functions CFAR Chen clutter cross-term interference detection Doppler frequency shift Doppler shift electromagnetic Electronic Systems Estimation Extraction Fourier transform frequency domain frequency spectrum Gabor helicopter High-Resolution Hough transform IEEE IEEE Trans imaging of moving ISAR image joint time-frequency domain linear located maneuvering targets matched filter micro-Doppler motion compensation motion compensation algorithm moving targets multiple targets parameters phase function point-scatterer model pulse Qian radar data Radar Imaging radar returns radar signal range cell resonances returned signal rotation rate rotational motion rotor blades scattering centers scattering mechanisms Section shown in Figure Signal Processing signal s(t simulated spectrogram stationary target STFT subaperture Synthetic Aperture Radar target motion TFDS time-domain Time-Frequency Analysis time-frequency distribution time-frequency plane Time-Frequency Processing time-frequency representation time-frequency transform time-frequency-based image formation velocity vibration waveform wavelet transform window function
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