分布式目标反演形变的关键性问题分析与处理

发布时间：2018-01-08 15:22

  本文关键词：分布式目标反演形变的关键性问题分析与处理　出处：《遥感信息》2017年02期 　论文类型：期刊论文

  更多相关文章： 非参数假设检验 统计同质像元 时序平均相干性 空间自适应滤波 分布式目标

【摘要】：分布式目标广泛存在于自然界中,就传统时间序列InSAR技术而言,难以将其应用于地表缓慢形变反演流程中。主要存在2个方面的原因:1)分布式目标呈面状分布,在影像空间中拓展结构难以确定,缺少对应的提取方法;2)分布式目标的时间序列相位不稳定,与永久散射体不同,难以建立其与待估参量之间的解算模型。为了满足融合分布式目标与高相干点目标反演地表形变的实际应用需求,该文详细分析了利用分布式目标反演地表缓慢形变存在的关键性问题,并结合当前国内外研究进展给出相应的处理方法,使得联合分布式目标与高相干点目标反演地表形变成为可能。
[Abstract]:Distributed targets exist widely in nature, as far as the traditional time series InSAR technology is concerned. It is difficult to apply it to the inversion process of slow deformation of the earth's surface. There are two main reasons: 1) the distributed target is distributed in a plane form, it is difficult to determine the extended structure in the image space, and there is a lack of corresponding extraction method. 2) the phase of time series of distributed targets is unstable, which is different from that of permanent scatterers. It is difficult to establish a solution model between the parameters to be estimated. In order to meet the practical application needs of fusion of distributed target and high coherent point target inversion of surface deformation. In this paper, the key problems of slow deformation inversion using distributed targets are analyzed in detail, and the corresponding processing methods are given in combination with the current research progress at home and abroad. It is possible to combine distributed target and high coherent point target to retrieve surface deformation.
【作者单位】： 北京环球星云遥感科技有限公司;中国测绘科学研究院;
【分类号】：TN957.52
【正文快照】： 0引言以面状形态存在的分布式目标因其提取和相位稳定性问题在传统时间序列InSAR(interferometric SAR)技术反演地表形变过程中并没有得到过多关注。而随着InSAR技术实际应用需求的进一步扩大,单纯依赖于高相干点目标获取形变信息的传统InSAR技术受到了前所未有的限制,尤其以，

本文编号：1397657