Preface |
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xi | |
Acknowledgments |
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xiii | |
Author |
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xv | |
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1 | (22) |
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1.1 Surface Scattering as a Random Process |
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1 | (3) |
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1.2 Nature of Wave Scattering from Rough Surface |
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4 | (1) |
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1.3 Radar Imaging Mechanisms and Computation |
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5 | (8) |
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1.4 Progress of the Subject |
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13 | (5) |
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18 | (5) |
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Chapter 2 Statistical Description of Rough Surfaces |
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23 | (16) |
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2.1 Types of Rough Surface |
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23 | (2) |
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2.1.1 Quasi-Periodic and Random Rough Surfaces |
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23 | (1) |
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2.1.2 Isotropic and Anisotropic Surfaces |
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24 | (1) |
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2.2 Statistics of Randomly Rough Surface |
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25 | (5) |
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25 | (3) |
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28 | (2) |
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2.3 Correlation Functions and Roughness Spectra |
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30 | (3) |
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2.4 Multiscale Rough Surface |
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33 | (3) |
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2.5 Uncertainties of Roughness Parameters |
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36 | (2) |
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38 | (1) |
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Chapter 3 Basics of Electromagnetic Wave |
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39 | (20) |
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39 | (1) |
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40 | (2) |
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3.3 Wave Reflection and Transmission at a Plane Boundary |
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42 | (9) |
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3.3.1 Laws of Reflection and Refraction |
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42 | (3) |
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3.3.2 Reflection and Transmission in a Layered Medium |
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45 | (6) |
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3.4 Radar Equations for Objects and Extensive Targets |
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51 | (6) |
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3.4.1 Radar Cross-Section |
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51 | (4) |
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3.4.2 Scattering Coefficient |
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55 | (2) |
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57 | (2) |
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Chapter 4 Analytical Modeling of Rough Surface Scattering |
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59 | (66) |
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4.1 Huygens-Fresnel Principle |
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59 | (2) |
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4.2 Electric Field Integral Equations (EFIE) and Magnetic Field Integral Equations (MFIE) |
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61 | (3) |
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4.3 Solutions of EFIE and MFIE--Numerical and Analytical Approaches |
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64 | (5) |
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4.3.1 Kirchhoff Approximation (KA) |
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66 | (1) |
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4.3.2 Small Perturbation Method (SPM) |
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67 | (1) |
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4.3.3 Small Slope Approximation (SSA) |
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68 | (1) |
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4.3.4 Integral Equation Model (IEM) |
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69 | (1) |
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4.4 Advanced Integral Equation Models |
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69 | (17) |
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4.4.1 Single and Multiple Scattering |
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70 | (7) |
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4.4.2 Multiple Scattering Contributions |
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77 | (3) |
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4.4.3 Validation of AIEM Model |
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80 | (1) |
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4.4.3.1 Comparison with Numerical Simulations |
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80 | (1) |
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4.4.3.2 Comparison with Measurement Data |
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81 | (5) |
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4.4.3.3 Comparison between POLARSCAT, NMM3D, SSA2, AIEM, and SPM2 |
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86 | (1) |
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4.5 Numerical Examples for Soil and Ocean Surfaces |
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86 | (29) |
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4.5.1 Scattering Behaviors from Soil Surface |
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86 | (1) |
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4.5.1.1 Radar Backscattering Behaviors |
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86 | (3) |
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4.5.1.2 Radar Bistatic Scattering Behaviors |
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89 | (7) |
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4.5.2 Scattering Behaviors from Ocean Surface |
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96 | (1) |
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4.5.2.1 Radar Backscattering Behaviors |
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96 | (15) |
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4.5.2.2 Radar Bistatic Scattering Behaviors |
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111 | (4) |
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115 | (3) |
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118 | (2) |
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120 | (1) |
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121 | (4) |
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Chapter 5 Sensitivity Analysis of Radar Scattering of Rough Surface |
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125 | (22) |
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5.1 Extended Fourier Amplitude Sensitivity Test (EFAST) |
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125 | (1) |
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5.2 Entropy-Based Sensitivity Analysis (EBSA) |
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126 | (2) |
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5.3 Monostatic vs. Bistatic Scattering Patterns |
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128 | (3) |
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5.3.1 Monostatic Scattering Patterns |
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128 | (1) |
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5.3.1.1 Distribution Response of the Backscattering Coefficient |
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128 | (1) |
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5.3.1.2 SA by Information Entropy |
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128 | (1) |
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5.3.2 Bistatic Scattering Patterns |
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129 | (2) |
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5.4 Dependences on Radar Parameters |
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131 | (3) |
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5.4.1 Sensitivity to Incident Angle |
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131 | (2) |
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5.4.2 Sensitivity to Polarization |
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133 | (1) |
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5.4.3 Sensitivity to Multi-Angle |
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133 | (1) |
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5.5 Dependences on Surface Parameters |
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134 | (9) |
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5.5.1 Sensitivity to Soil Moisture |
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136 | (2) |
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5.5.2 Sensitivity to RMS Height |
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138 | (2) |
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5.5.3 Sensitivity to Correlation Length |
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140 | (3) |
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143 | (4) |
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Chapter 6 Geophysical Parameters Estimation |
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147 | (12) |
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147 | (4) |
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151 | (1) |
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6.3 Least Square Estimation |
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152 | (2) |
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6.4 Kalman Filter-Based Estimation |
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154 | (4) |
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158 | (1) |
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Chapter 7 Selected Model Applications to Remote Sensing |
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159 | (22) |
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7.1 Surface Parameter Response to Radar Observations--A Quick Look |
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160 | (5) |
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7.1.1 Comparison with POLARSCAT Data |
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160 | (1) |
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7.1.1.1 For Surface 1 (SI) |
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160 | (1) |
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7.1.1.2 For Surface 2 (S2) |
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160 | (3) |
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7.1.1.3 For Surface 3 (S3) |
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163 | (1) |
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7.1.2 Comparison with EMSL Data |
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164 | (1) |
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7.1.3 Comparison with SMOSREX06 Data |
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165 | (1) |
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7.2 Surface Parameter Retrieval |
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165 | (10) |
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7.2.1 Data Input-Output and Training Samples |
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165 | (3) |
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7.2.2 Retrieval Results Using Backscattering Coefficients |
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168 | (1) |
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7.2.3 Retrieval Using Bistatic Scattering Coefficients |
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168 | (5) |
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7.2.4 Comparison with Image-Based Surface Parameter Estimation from Polarimetric SAR Image Data |
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173 | (2) |
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7.3 Direction Estimation of Incident Source: A Data Analytic Example |
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175 | (3) |
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178 | (3) |
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Chapter 8 Radar Imaging Techniques |
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181 | (56) |
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8.1 Stochastic Wave Equations |
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181 | (10) |
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8.2 Time-Reversal Imaging |
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191 | (7) |
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8.3 Synthetic Aperture Imaging |
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198 | (13) |
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198 | (3) |
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8.3.2 SAR Path Trajectory |
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201 | (3) |
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8.3.3 Antenna Beam Tracking |
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204 | (1) |
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8.3.4 Simulation Examples |
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204 | (7) |
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8.4 Mutual Coherence Function |
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211 | (4) |
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215 | (15) |
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8.5.1 Bistatic SAR Scattering Property |
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216 | (2) |
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8.5.2 Bistatic Imaging Geometry and Signal Model |
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218 | (5) |
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8.5.3 Bistatic Range History |
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223 | (2) |
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225 | (5) |
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230 | (3) |
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233 | (2) |
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235 | (2) |
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Chapter 9 Computational Electromagnetic Imaging of Rough Surfaces |
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237 | (26) |
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9.1 Rough Surfaces Fabrication by 3D Printing |
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237 | (2) |
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9.2 Experimental Measurements and Calibration |
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239 | (4) |
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9.3 Data Acquisition and Image Formation |
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243 | (5) |
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9.4 Image Statistics and Quality |
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248 | (12) |
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260 | (3) |
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Chapter 10 Advanced Topic: A Moon-Based Imaging of Earth's Surface |
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263 | (54) |
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10.1 Radar Moon-Earth Geometry |
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263 | (5) |
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10.1.1 Time and Space Coordinates |
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264 | (2) |
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10.1.2 Transformations from the ECI to ECR |
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266 | (2) |
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10.2 Spatiotemporal Coverage |
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268 | (15) |
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10.2.1 Geometric parameters |
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268 | (4) |
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272 | (3) |
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10.2.3 Moon-Based SAR's Spatial Coverage |
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275 | (3) |
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10.2.4 Temporal Variations in the Spatial Coverage |
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278 | (1) |
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10.2.5 Numerical Illustration of Spatiotemporal Coverage |
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279 | (1) |
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10.2.5.1 Hourly Variations |
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279 | (1) |
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10.2.5.2 Global Accumulated Visible Time within Different periods |
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280 | (3) |
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10.3 Propagation through Ionospheric layers |
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283 | (9) |
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10.3.1 Phase Error due to Temporal-Spatial Varying Background Ionosphere |
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284 | (3) |
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10.3.2 Slant Range in the Context of Background Ionospheric Effects |
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287 | (2) |
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10.3.3 SAR Signal in the Context of Background Ionospheric Effects |
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289 | (3) |
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10.4 Image Distortions by Dispersive Effects |
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292 | (17) |
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10.4.1 Ionospheric Effects on Range Imaging |
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292 | (1) |
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293 | (4) |
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10.4.1.2 Range Defocusing |
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297 | (7) |
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10.4.2 Ionospheric Effects on Azimuth Imaging |
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304 | (1) |
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304 | (3) |
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10.4.2.2 Azimuth Defocusing |
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307 | (2) |
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10.5 Image Simulations and Error Analysis |
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309 | (4) |
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10.5.1 Imaging of Point Targets |
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310 | (1) |
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10.5.2 Imaging of Extended Target |
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311 | (2) |
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313 | (4) |
Index |
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317 | |