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A novel SAR scheme using CC-S based phase coding waveform for ultra-low range PSLR performance

The side-lobes of strong target in conventional SAR image always impact the image qualities, sometimes submerge the weak targets. A novel SAR scheme with ultra-low range PSLR performance was proposed, by employing CC-S as SAR transmitted waveform. The CC-S coding waveform was utilized to acquired ultra-low range PSLR performance, by mutually canceled the side-lobes. As the CC-S is composed of groups of self-complementary sequences, each sequences should be transmitted with proper scheme, and the receiving time difference of each sequences should be compensated. Furthermore, the image formation algorithm for accurately focusing raw data of the SAR system was also proposed. Computer simulation results were presented, which demonstrated the validity of the proposed SAR scheme and image formation algorithm.