Sparse signal processing has already been introduced to synthetic aperture radar (SAR). which shows potential in improving imaging performance based on raw data or a complex image. In this paper. the relationship between a raw data-based sparse SAR imaging method (RD-SIM) and a complex image-based sparse SAR imaging method (CI-SIM) is compared and analyzed in detail. https://www.jmannino.com/top-offer-Simply-Southern-World-Full-Valentine-T-Shirt-top-buy/