Synthetic aperture radar raw signals simulation of extended scenes

A synthetic aperture radar (SAR) raw signal simulation algorithm for extended scenes is presented. This algorithm is based on the SAR two-dimensional system transform function (STF). To cope with range-variant nature of SAR STF and increase the speed of this algorithms, new formulas for range-varian...

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Bibliographic Details
Published inWuhan University journal of natural sciences Vol. 9; no. 3; pp. 327 - 331
Main Authors Jin-yao, Sun, Hong, Sun
Format Journal Article
LanguageEnglish
Published Heidelberg Springer Nature B.V 01.05.2004
School of Electronic Information, Wuhan University,Wuhan 430072, Hubei, China
Subjects
Algorithms
Fast Fourier transformations
Fourier transforms
Radar
Simulation
Synthetic aperture radar
synthetic aperture radar
raw signal simulation
system transform function
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Summary:A synthetic aperture radar (SAR) raw signal simulation algorithm for extended scenes is presented. This algorithm is based on the SAR two-dimensional system transform function (STF). To cope with range-variant nature of SAR STF and increase the speed of this algorithms, new formulas for range-variant phase corrections in range-Doppler (RD) domain are developed. In this way, many azimuth lines can be simulated with the same SAR STF. It only needs two-dimensional fast Fourier transform code and complex multiplications. Comparing with time-domain simulation algorithm, it is very simple and thus efficient. Simulation results have shown that this algorithm is accurate and efficient.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:1007-1202
1993-4998
DOI:10.1007/BF02907888