面向多视全极化SAR数据的基于模型的非相干极化分解技术,算法详解

通过本书的介绍使读者更好地了解基于模型的非相干极化分解技术中各种分解算法的来龙去脉、具体技术细节和各自的优缺点，从而能够为读者在具体科研和应用中对该技术不同算法的选用和使用提供帮助，进而促进基于模型的非相干极化分解技术在更广泛的范围得到更恰当的应用。其次，本书在描述中将着重给出基于模型的非相干极化技术在其自身发展过程中各研究阶段的问题牵引、突破思路和存在问题等内容，目的是希望读过本书的科研人员能充分了解和体会该技术的科研发展历程，进而能够促进该技术的进一步发展，同时也希望能激发和促进广大读者在其各自领域的科研实践。

第1 章 绪 言 ·······················································································1

1.1 引言 ·····································································································1

1.2 基于模型的非相干 化分解技术发展历程简介 ···············································3

1.3 化雷达基本理论 ···················································································9

1.4 主要符号对照表 ···················································································· 13

参考文献···································································································· 14

第2 章 Freeman 分解 ········································································· 16

2.1 提出的背景和要解决的问题 ····································································· 16

2.2 使用的散射模型 ···················································································· 17

2.2.1 体散射模型 ················································································ 17

2.2.2 面散射模型 ················································································ 18

2.2.3 二次散射模型 ············································································· 19

2.3 分解算法 ····························································································· 20

2.4 实验分析 ····························································································· 23

2.4.1 伪彩色合成 ················································································ 24

2.4.2 典型地物分解结果的定量分析 ························································ 28

2.4.3 红色城镇区域的补充说明 ······························································ 29

2.5 存在的问题分析 ···················································································· 29

2.5.1 过高估计体散射成分 ···································································· 29

2.5.2 负功率成分问题 ·········································································· 30

2.5.3 化信息丢失问题 ······································································· 31

2.6 本章小结 ····························································································· 31

参考文献···································································································· 32

第3 章 Yamaguchi 分解 ···································································· 33

3.1 要解决的问题和创新点 ··········································································· 33

3.2 使用的散射模型 ···················································································· 34

3.2.1 螺旋散射模型 ············································································· 34

3.2.2 改进的体散射模型 ······································································· 35

3.3 分解算法 ····························································································· 36

3.3.1 标准体散射模型的情况 ································································· 36

3.3.2 改进体散射模型的情况 ································································· 38

3.4 实验分析 ····························································································· 41

3.4.1 伪彩色合成分析 ·········································································· 41

3.4.2 典型地物分解结果的定量分析 ························································ 44

3.5 存在的问题 ·························································································· 45

3.6 有关改进体散射模型的补充说明 ······························································· 46

3.7 本章小结 ····························································································· 48

参考文献···································································································· 49



第4 章 去定向Freeman 分解 ···························································· 50

4.1 要解决的问题和创新点 ··········································································· 50

4.2 使用的散射模型 ···················································································· 51

4.3 去定向变换 ·························································································· 51

4.3.1 具体变换过程 ············································································· 51

4.3.2 去定向与定向角补偿的区别 ··························································· 53

4.4 非负功率 ······················································································· 53

4.5 分解算法 ····························································································· 54

4.6 实验分析 ····························································································· 57

4.6.1 负功率成分统计实验 ···································································· 57

4.6.2 缓解过高估计体散射实验 ······························································ 59

4.6.3 典型地物分解结果定量分析实验 ····················································· 64

4.7 存在的问题 ·························································································· 66

4.8 本章小结 ····························································································· 66 第5 章 改进Cui 分解 ········································································· 68

5.1 要解决的问题和创新点 ··········································································· 68

5.2 使用的散射模型 ···················································································· 69

5.3 分解算法 ····························································································· 71

5.3.1 体散射成分的提取 ······································································· 71

5.3.2 第二散射成分和第三散射成分的提取 ··············································· 72

5.3.3 后两种成分散射机制的确定 ··························································· 76

5.3.4 分解算法总结 ············································································· 78

5.4 核心计算的解析形式 ·············································································· 80

5.4.1 行列式三阶实数方程的解析解 ························································ 80

5.4.2 第二散射成分大功率值优化问题求解 ········································· 81

5.5 实验分析 ····························································································· 82

5.5.1 典型地物分解结果定量分析 ··························································· 82

5.5.2 定向角补偿比较实验 ···································································· 86

5.6 存在的问题 ·························································································· 87

5.7 本章小结 ····························································································· 88