InSAR DEM error modeling and calibration

摘要：

This paper provides a error modeling and calibration method to the geolocation error problem arising in the generation of digital elevation model (DEM) via interferometric synthetic aperture radar (InSAR) technique. DEM error is divided into two parts, systematic error and random error, they are modeled respectively. The baseline error is of crucial importance in the systematic error, it causes a slowly changed height error in the azimuth and a small tilt in the ground range of the DEM, a 2-D polynomial function is used to fit the systematic height error. The corrected DEM is obtained by removing the systematic error from the raw DEM. Computer simulation results prove the availability of the method.

关键词： InSAR TtEM height error modeling baseline error error calibration GCPs least-squares method

作者: Yong-jun Zhang Hai-feng Huang Yong-sheng Zhang Dian-nong Liang

作者单位: School of Electronic Science and Engineering, National University of Defense Technology, Changsha, Hunan, P.R.China

会议类型: 国际会议

会议名称: 2010 International Conference on Signal and Information Processing(2010年IEEE信号与信息处理国际会议 ICSIP2010)

会议地点: 长沙

会议语种:英文

页码: 628-632

在线出版日期: 2010-12-14（万方平台首次上网日期，不代表论文的发表时间）