Title: Synthetic aperture radar raw signal simulation based on inverse chirp scaling algorithm

Authors: Xiaojuan Cheng; Qingzhen Zhang; Fei Tao

Addresses: School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China ' School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China ' School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China

Abstract: By the analysis of the imaging principle and the raw echo model of synthetic aperture radar (SAR) (Bamler et al., 1992), an efficient simulation method is proposed based on inverse imaging algorithm for SAR raw echo data (Franceschetti et al., 1995). The idea of the inverse imaging algorithm is based on chirp scaling (CS) imaging algorithm called inverse chirp algorithm (ICS) (Xiao and Pi, 2003). It converts the SAR scene greyscale into the confocal and complex image data comprising the continuous phase information, using a scene processing method (Li et al., 1996). Then, a backward method is used. It can inverse and simulate SAR scene raw echo data after azimuth decompression, range decompression and range curvature compression (Khwaja, 2006). Finally, the imaging simulation test is carried out to verify the effectiveness of this method.

Keywords: synthetic aperture radar; SAR; raw echo data; chirp scaling; signal simulation; inverse imaging; azimuth decompression; range decompression; range curvature compression.

DOI: 10.1504/IJSCOM.2016.075417

International Journal of Service and Computing Oriented Manufacturing, 2016 Vol.2 No.1, pp.67 - 83

Received: 28 Nov 2013
Accepted: 26 Dec 2014
Published online: 22 Mar 2016 *

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