An Improved FS Algorithm for Range Anti-aliasing of FMCW SAR

Conventional Frequency Scaling (FS) algorithm is applied to process Frequency Modulated Continuous Wave (FMCW) SAR, which will lead a heavy range frequency aliasing. Through analyzing basic principle of the FS algorithm and combining the scaling propertation of the Fourier transform, with the presen...

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Bibliographic Details
Published inJournal of radars = Lei da xue bao Vol. 1; no. 1; pp. 76 - 81
Main Authors 张, 峰会, 王, 岩飞
Format Journal Article
LanguageEnglish
Published China Science Publishing & Media Ltd. (CSPM) 01.03.2012
Subjects
Frequency Modulated Continuous Wave (FMCW)
Frequency scaling
Residual video phase
SAR
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ISSN2095-283X
2095-283X
DOI10.3724/SP.J.1300.2012.10066

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Summary:Conventional Frequency Scaling (FS) algorithm is applied to process Frequency Modulated Continuous Wave (FMCW) SAR, which will lead a heavy range frequency aliasing. Through analyzing basic principle of the FS algorithm and combining the scaling propertation of the Fourier transform, with the presence of a constant factor, this paper proposed a improved frequency scaling algorithm for range anti-aliasing. The proposed algorithm holds performance of the conventation one and just removes the aliasing. The successfully imaging a point target shows the validity of the proposed method.
ISSN:2095-283X
2095-283X
DOI:10.3724/SP.J.1300.2012.10066