A modified RD algorithm for airborne high squint mode SAR imaging
Modern Radar（2008）
摘要
Based on the imaging geometry of squint mode,the characteristics of echoes in squint mode are analyzed in this paper.The result is that range walk is much larger than range bending,and a modified range-Doppler(RD) algorithm suitable for airborne highly squint mode imaging is derived.This algorithm is based on high-order range model,which firstly corrects range walk in the process of range compression and then corrects range bending in two dimensional frequency domain.The imaged results of simulation and Radar data both demonstrate the feasibility of the algorithm proposed in this paper.
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关键词
synthetic aperture radar,airborne high squint mode SAR imaging,Radar(SAR),modified range-doppler(rd) algorithm,target focusing,Synthetic Aperture,Doppler radar,high squint mode,target tracking,range compression,modified range-Doppler algorithm,range curvature correction,synthetic aperture radar(sar),modified range-doppler(RD) algorithm,airborne radar,imaging geometry,radar tracking,radar imaging,geometry
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