Quantitative Suppression Method For FMCW SAR Leakage Signal

The traditional continuous wave radar system increases the distance between the transmitting and receiving antennas and improves the isolation between them, which is not suitable for small platforms such as satellite and airborne. This article proposes a quantitative suppression method for FMCW SAR leakage signal. By utilizing the stability of the leakage signal and implementing sampling quantization to filter out weak echo signals, a FMCW SAR signal extraction system is designed based on this method.