In the proposed algorithm, the range-independent de-rotation operation is employed to overcome the spectrum aliasing problem, and the signal properties after de-rotation are derived in detail. Moreover, a modified range-dependent deramp function i

星载扫描SAR算法研究，详述了ScanSAR的成像模式流程。(Study on spaceborne scanning SAR algorithm and detail the imaging mode flow of ScanSAR.)