Analysis of Spaceborne Dual-antenna InSAR System Characteristic Under Flexible Baseline Oscillation
Wang Xiao-guang①② Wang Zhi-qiang① Yang Xin① Liu Wei①
①(Academy of Optic-Electronics, Chinese Academy of Sciences, Beijing 100094, China) ②(Graduate School, Chinese Academy of Sciences, Beijing 100049, China)
Abstract：The main performance of spaceborne dual-antenna InSAR system in case of flexible baseline oscillation is investigated. Based on the mast motion model, a reduced raw echo signal of the slave antenna is derived under a limited condition. Then, the antenna beam misalignment is analysed and an alignment scheme is proposed. Finally, the oscillation effect on the SAR image resolution and the interferogram coherence is expounded for both the slow and high frequency. In the example of typical system, theoretical analysis and numerical simulation conducted show the result is consistent, which could provide an reference for the system design and application.
王晓光, 王治强, 杨新, 刘薇. 柔性基线抖动对星载双天线InSAR系统性能的影响分析[J]. 电子与信息学报, 2011, 33(5): 1114-1118.
Wang Xiao-Guang, Wang Zhi-Qiang, Yang Xin, Liu Wei. Analysis of Spaceborne Dual-antenna InSAR System Characteristic Under Flexible Baseline Oscillation. , 2011, 33(5): 1114-1118.
2011, Vol. 33 
