| 差分InSAR处理及其应用分析 |
| |
| 引用本文： | 张景发,李发祥,刘钊. 差分InSAR处理及其应用分析[J]. 地球信息科学学报, 2000, 2(3): 58-64 |
| |
| 作者姓名： | 张景发 李发祥 刘钊 |
| |
| 作者单位： | 1. 中国地震局地壳应力研究所, 北京 100085;2. 清华大学土木工程系地球空间信息研究所, 北京 100084 |
| |
| 基金项目： | 中国地震局“九五”重点攻关项目支持 编号是“96 -913-0 1-0 3-0 2” |
| |
| 摘 要： | 本文结合实例分析和介绍了影响In SAR处理结果的几个重要环节。如: 数据源及像对选择 ;影响In SAR处理的因素等。目前有4～5种雷达卫星数据可以用于In SAR的处理,ERS-1/2卫星数据效果最好; 差分In SAR处理的工作步骤中,亚像元精度的配准、相干性分析、全相位恢复等是其中的关键技术。In SAR的精度和噪声水平是In SAR能否实用的重要条件,噪声影响地物的相干性,噪声较大部位相干性消失,在整幅图像中噪声区域不大于30% ,将不影响整体的In SAR测量结果。
|
| 关 键 词： | 雷达卫星(SAR) InSAR 地壳形变 同震形变 |
The Processing Procedure of D-InSAR and Influence Factors of Its Application |
| |
| Zhang Jingfa Li Faxiang. The Processing Procedure of D-InSAR and Influence Factors of Its Application[J]. Geo-information Science, 2000, 2(3): 58-64 |
| |
| Authors: | Zhang Jingfa Li Faxiang |
| |
| Affiliation: | 1. Institute of Crustal Mechanics, CSB,Beijing,100085;2. Tsinghua University GIS/GPS/RS Research Center, Beijing, 100084 |
| |
| Abstract: | This paper introduces and studies several key steps which affect InSAR result, combined by instantiality At present, there are 4 5 SAR satellites which can be used in InSAR, especially, ERS 1/2 is the best in all SAR satellites The core procedures are as follow: sub pixel degree registration, coherence analysis, and unwrapped phase and so on The precision and noise level are important conditions which determine if InSAR can come a really useful tool, the precision of D InSAR is cm mm level in the measurement of crustal deformation, noise influence the coherence of surface feature, the coherence is lost in places of more noise |
| |
| Keywords: | SAR satellite InSAR Crustal deformation Coseimic deformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球信息科学学报》浏览原始摘要信息 |
|
点击此处可从《地球信息科学学报》下载全文 |
|
