Principles of Synthetic Aperture Radar Imaging 1st edition by Kun Shan Chen ISBN 0367267513 9780367267513

Chapter 1 Preliminary Background

1.1 Signals and Linear System

1.1.1 Analytic Signal

1.2 Basics of Radar Signal

1.2.1 Single Pulse

1.2.2 Pulse Train

1.2.3 Frequency-Modulated Continuous Wave

1.3 Concept of Synthetic Aperture Radar

Appendix: Useful Fourier Transform Pairs and Properties

References

Chapter 2 SAR Models

2.1 Introduction

2.2 Physical Model

2.2.1 Radar Scattering Power and Scattering Coefficient

2.2.2 Antenna Iluminated Area

2.2.3 Scattering Effects

2.2.4 Radar Speckles

2.3 Target Rcs Models

2.3.1 Deterministic Target

2.3.2 Distributed Target

2.3.2.1 Single Scattering

2.3.2.2 Double Scattering

2.4 System Model

2.4.1 Slant Range Projection

2.4.2 Point Target Model

Appendix: Derivation of Multi-Look Amplitude Distribution

References

Chapter 3 SAR Data and Signal

3.1 Introduction

3.2 Chirp Signal

3.2.1 Echo Signal in Two Dimensions

3.2.2 Demodulated Echo Signal

3.2.3 Range Cell Migration

3.3 Properties of Doppler Frequency

3.3.1 Squint Effects

3.3.2 FM Signal Aliasing

3.3.3 Platform Velocity

3.4 FM Continuous Wave

3.4.1 Signal Parameters

3.4.2 Object to Data Mapping

References

Chapter 4 SAR Path Trajectory

4.1 Introduction

4.2 Time Coordinate System

4.3 Spatial Coordinate System

4.3.1 Orbital Parameters

4.3.2 Geocentric and Geodetic Systems and Their Transformation

4.3.3 Conversion between ECR and ECI Coordinates

4.4 Satellite Position, Velocity, and Their Estimations

4.4.1 Orbital State Vector

4.4.2 Radar Beam-Pointing Vector

4.4.3 Target Position on Earth

4.5 Coordinates for Aircraft Platform

4.5.1 ENU AND NED Coordinates

4.5.2 RPY Coordinate and Flight Path Angle

4.5.3 Simulation Example

References

Chapter 5 SAR Image Focusing

5.1 Introduction

5.2 Generic Range–Doppler Algorithm

5.2.1 Range Cell Migration Correction

5.2.2 Doppler Centroid Estimation

5.2.3 Doppler Rate Estimation

5.3 Chirp Scaling Algorithm

5.3.1 Range Cell Migration

5.3.2 Chirp Scaling Functions

5.3.3 Numerical Examples

Appendix: Stationary Phase Approximation

References

Chapter 6 Motion Compensation

6.1 Introduction

6.2 Parameters and Their Conversions

6.2.1 Airborne System

6.2.2 Spaceborne System

6.3 Signal Model for Motion Compensation

6.4 Numerical Simulation

References

Chapter 7 Stationary FMCW SAR

7.1 Introduction

7.2 Sfmcw Signal Model

7.3 Image Focusing of Sfmcw System

7.3.1 Focusing by RDA

7.3.2 Focusing by CSA

7.4 Motion Compensation

7.5 Experimental Measurements

7.5.1 Measurement Setup

7.5.2 Image Focusing

References

Chapter 8 System Simulations and Applications

8.1 Introduction

8.2 Simulation Demonstration

8.2.1 Point Target Response

8.2.2 Target Location

8.3 Computation Complexity

8.4 Contrast Enhancement by Nonquadratic Optimization

8.4.1 Algorithm for Stripmap Mode SAR by Nonquadratic Regularization

8.4.2 Performance Check

8.5 Feature Vectors and Extraction

8.6 Applications to Target Identification

8.6.1 Test-Simulated SAR Images

8.6.2 Test on Real SAR Images

References

Index