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 安文韬著 著 专业科技 文轩网

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