俞晓莹,姜成岭,张建,李珊珊

• 1:中南大学地球科学与信息物理学院
• 2:长沙理工大学土木与建筑学院
• 3:济南市公路管理局

摘要(Abstract)：

常规D-InSAR技术已成功应用于由于火山、地震等引起的地表形变监测,然而受时间失相干和大气延迟等影响,该技术监测地表沉降形变的精度只能达厘米级。本文以美国圣佩德罗湾港口为研究对象,采用干涉点目标分析(IPTA)技术,选用二维线性相位模型对时序差分干涉相位图迭代回归分析,逐次去除大气延迟、DEM误差以及噪声等的影响,最终提取出准确可靠的形变序列相位信息。结果证明IPTA技术对长期微小的地壳累积形变探测具有广阔的应用前景,而且IPTA技术在实现效率和数据存储方面都优于常规的PS-InSAR。

关键词(KeyWords)： 干涉点目标分析技术;合成孔径雷达差分干涉测量;地表沉降;GPS;RMS

Abstract:

Keywords:

基金项目(Foundation): 长沙市科技资助项目(K1106044-11);; 道路灾变防治及交通安全教育部工程研究中心开放基金资助项目(kfj110305);; 国家自然科学基金资助项目(2006AA12Z156)

作者(Author): 俞晓莹,姜成岭,张建,李珊珊

DOI: 10.16251/j.cnki.1009-2307.2012.06.036

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