Jixiang Xiang, Guangcai Sun, Zijing Zhang, Yuqi Wang, Liang Guo, Mengdao Xing
IGARSS 2020-2020 IEEE International Geoscience and Remote Sensing Symposium
This paper presents a new method for estimating the baseline error of an azimuth multi-channel SAR antenna in the SAR image domain. In this paper, the expressions of the image domain of multi-channel SAR signals with azimuth baseline errors are derived. The covariance matrix of the image domain signals is obtained by using the joint pixel method. Finally, the least-squares method of image domain is deduced to estimate the azimuth baseline of multi-channel SAR error. Simulation experiments verify the effectiveness of the proposed method.
J Xiang, G Sun, Z Zhang, Y Wang, L Guo, M Xing - IGARSS 2020-2020 IEEE International Geoscience …, 2020