Research on Block Adjustment of Airborne InSAR Images

35th International Symposium on Remote Sensing of Environment

地球科学;生态环境科学

Xijuan, Yue^1 ; Chunming, Han^1 ; Changyong, Dou^1 ; Yinghui, Zhao^1

Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, No. 9 Dengzhuang South Road, Haidian, Beijing 100094, China^1

关键词: Adjustment parameter;    Block adjustment;    Geometric constraint;    Ground control points;    InSAR data processing;    Sichuan province;    Software systems;    Threedimensional (3-d);   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/17/1/012199/pdf
DOI  :  10.1088/1755-1315/17/1/012199

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Airborne InSAR system and InSAR data processing algorithm have been one of the hot topics in the international SAR field. Geometric constraint relation of images is set up through airborne InSAR block adjustment, adjustment parameters are adjusted and refined, and the three-dimensional(3D) ground coordinates of tie-points(TPs) are solved according to least squares theory. The number of the ground control points(GCPs) is reduced. The airborne InSAR block adjustment experiment was done using self-developed Airborne InSAR Block Adjustment Software System. The 76 airborne InSAR images which are 0.5 m resolution and cover an area of 472 square kilometers generated a block of 4 strips and 19 rows with approximately 30% overlap between adjacent strips. The study site is located in in Jiangyou Sichuan province and characterized by a hilly topography. The result meets DEM and DOM mapping accuracy requirements at scale of 1:10000.