Authors: Po-Chih Chen, Jean-Fu Kiang
Source: FERMAT, Volume 26, Article 1, Mar.-Apr., 2018
Abstract: This paper summarizes the modified versions of chirp scaling algorithm (CSA), range-Doppler algorithm (RDA) and, frequency-domain algorithm (FDA) for synthetic aperture radar (SAR) imaging at high squint angles. The reviewed methods can reconstruct better images with less computational load and memory than their conventional counterparts, which is verified by simulations. SAR imaging with highly-elliptical-orbit (HEO) satellites based on these techniques is also reviewed.
Index Terms: synthetic aperture radar (SAR), high squint angle, chirp scaling algorithm (CSA), range-Doppler algorithm (RDA), frequency-domain algorithm (FDA), highly-ellipticalorbit (HEO)
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Review of Modified Algorithms for Synthetic Aperture Radar Imaging at High Squint Angles