A Synchronization Algorithm for Spaceborne/Stationary BiSAR Imaging Based on Contrast Optimization With Direct Signal From Radar Satellite. - Mingmi Zhang; Robert Wang 001; Yunkai Deng; Lixin Wu; Zhimin Zhang 001; Heng Zhang 007; Ning Li 002; Yue Liu 007; Xiulian Luo (IEEE Trans. Geosci. Remote. Sens., 2016)