Study on rd algorithm used in squint mode airborne SAR processing

摘要

This paper studies two range-Doppler (RD) algo- rithms for the azimuth correlation in the squint mode air- borne synthetic aperture radar (SAR). The modeling of squint mode airborne SAR spatial geometry and echo re- sponse is given. The procedure for the squint mode air- borne SAR processing using the two RD algorithms is outlined. The simulation demonstrates that these two RD algorithms are suitable for squint mode airborne SAR when the squint angle is not larger than 20(°).