A Bundle Adjustment Calibration Method for Airborne InSAR System Based on Weighting of Feature Points
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

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.