A Bundle Adjustment Calibration Method for Airborne InSAR System Based on Weighting of Feature Points
Han Song-tao①②; Xiang Mao-sheng①
①The National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China; ②Graduate University of the Chinese Academy of Sciences, Beijing 100039, China
Abstract：Interferometric parameters calibration of InSAR system can acquire both interferometric phase bias and accurate baseline parameters. Then planimetric and vertical accuracies can be improved much. An approach of interferometric calibration over very large areas is presented in this paper. It acquired corresponding points using feature points extraction and optimal matching, then weighted bundle adjustment is induced to realize calibration of each sub-data simultaneously. The calibration parameters are analyzed. Results using airborne data show robust of the algorithm with respect to different terrain type.
韩松涛; 向茂生. 一种基于特征点权重的机载InSAR系统区域网干涉参数定标方法[J]. 电子与信息学报, 2010, 32(5): 1244-1247 .
Han Song-tao①②; Xiang Mao-sheng① . A Bundle Adjustment Calibration Method for Airborne InSAR System Based on Weighting of Feature Points. , 2010, 32(5): 1244-1247 .
2010, Vol. 32 
