Analysis of the Effect of Radio Frequency Interference on Repeat Track Airborne InSAR System
Ding Bin①② Xiang Mao-sheng① Liang Xing-dong①
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
The SAR system operating at low frequency is susceptible to Radio Frequency Interference (RFI) from television station, radio station, and some other civil electronic facilities. The presence of RFI degrades the SAR image quality, and obscures the targets in the scene. Furthermore, RFI can cause interferometric phase error in repeat track InSAR system. In order to analyze the effect of RFI on interferometric phase of InSAR, real measured RFI signal are added on cone simulated SAR echoes. The imaging and interferometric processing results of both the RFI-contaminated and raw data are given. The effect of real measured RFI signal on repeat track InSAR system is analyzed. Finally, the imaging and interferometric processing results of both with and without RFI suppressed of the P band airborne repeat track InSAR real data are presented, which demonstrates the efficiency of the RFI suppression method in terms of decreasing the interferometric phase errors caused by RFI.
丁斌, 向茂生, 梁兴东. 射频干扰对机载P波段重复轨道InSAR系统的影响分析[J]. 雷达学报, 2012, 1(1): 82-90.
Ding Bin, Xxiang Mao-sheng, Liang Xing-dong. Analysis of the Effect of Radio Frequency Interference on Repeat Track Airborne InSAR System. JOURNAL OF RADARS, 2012, 1(1): 82-90.
