Ultrahigh-Resolution Autofocusing for Squint Airborne SAR Based on Cascaded MD-PGA Jin, Yanghao ; Chen, Jianlai ; Xia, Xiang-Gen ; Liang, Buge ; Xiong, Yi ; Liang, Zhihuan ; Xing, Mengdao Abstract Publication: IEEE Geoscience and Remote Sensing Letters Pub Date: 2022 DOI: 10.1109/LGRS.2021.3105254 Bibcode: 2022IGRSL..1905254J