潘春天,邱志伟,卢丽君,牛原,吴振宇

• 1:江苏海洋大学海洋技术与测绘学院
• 2:中国测绘科学研究院

摘要(Abstract)：

针对高级陆地观测卫星2号提供的多极化数据源，不同极化方式影像的永久散射体点密度存在较大差别，而寻求极化最优的散射机制为永久散射体的识别和提取提供了一种新思路。该文以珠穆朗玛峰地区24景双极化影像为例，提出了改进后的模拟退火算法，退火过程采用不同的退火速率节约了退火总时间，通过不同的初始温度和稳定迭代次数实现双极化最优，然后利用干涉点目标分析技术反演地表时序形变，最后证实了双极化最优与HH极化形变结果的一致性。实验结果表明双极化最优结果实现了永久散射体数量最大化，能在大面积地表形变监测与灾害治理领域提供广泛的应用价值。

关键词(KeyWords)： 双极化最优;点密度;SA算法;IPTA技术

Abstract:

Keywords:

基金项目(Foundation): 珠峰高程测量项目（A2001）;; 2020年江苏省研究生实践创新项目（SJCX20＿1254）;2020年江苏省研究生实践创新项目（SJCX20＿1261）;; 江苏海洋大学2021年党建与思想政治教育研究课题项目（DS202120）

作者(Author): 潘春天,邱志伟,卢丽君,牛原,吴振宇

DOI: 10.16251/j.cnki.1009-2307.2022.09.016

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