桂阳归,汪长城,卢丽君,沈鹏

• 1:中南大学地球科学与信息物理学院
• 2:中国测绘科学研究院

摘要(Abstract)：

为了进一步提高InSAR的形变监测能力,在传统PSI技术和DS-InSAR技术的基础上,该文发展了一种顾及极化通道最优的时序InSAR形变监测方法。与传统时序方法相比,该方法在提高测量点密度的同时有效改善相位质量,并发现极化优化后的影像在城区能抑制一定程度的旁瓣效应,有利于后续同质区识别。基于此方法,该文以西安为例,采用12景PALSAR-2双极化影像进行地表时序形变反演。结合降水等数据,分析了由于过度抽取地下水叠加下伏构造断裂活动引起的西安地表沉降。

关键词(KeyWords)： 极化优化;永久散射体;分布式散射体;地裂缝

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41671356)

作者(Author): 桂阳归,汪长城,卢丽君,沈鹏

DOI: 10.16251/j.cnki.1009-2307.2021.12.011

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