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双轨法D-InSAR形变测量的误差分析
Error Analysis of Two-track Approach D-InSAR Deformation Measurement
【摘要】 以InSAR和双轨法D-InSAR基本原理为基础,推导出基线误差、卫星平台高程误差、相位测量误差、外部DEM误差以及大气延迟误差对双轨法D-InSAR形变测量影响的关系式,并对这些关系式进行分析,揭示了这些误差对双轨法D-InSAR形变测量影响的规律。
【Abstract】 Based on the basic principles of InSAR and two-track approach D-InSAR,quantitative relations of the effects of baseline error,satellite platform height error,phase error,external DEM error and atmospheric delay error on the deformation measurement of two-track approach are derived and analyzed,General laws of effects of these errors on the deformation measurement of two-track approach are shown.
【关键词】 InSAR;
双轨法D-InSAR;
形变测量;
误差分析;
【Key words】 InSAR; D-InSAR of two-track approach; deformation measurement; error analysis;
【Key words】 InSAR; D-InSAR of two-track approach; deformation measurement; error analysis;
【基金】 海岛(礁)测绘技术国家测绘局重点实验室资助项目(2010A01)
- 【文献出处】 计测技术 ,Metrology & Measurement Technology , 编辑部邮箱 ,2011年01期
- 【分类号】TN958
- 【被引频次】4
- 【下载频次】281