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	An azimuth Fourier transform for parallel-track bistatic SAR
	Li Feng ; Li Shu ; Zhao Yigong
	2010-10-12 ; 2010-10-12
关键词	Practical Theoretical or Mathematical/ approximation theory chirp modulation Doppler radar Fourier transforms radar imaging synthetic aperture radar/ parallel-track bistatic SAR second-order approximation range-Doppler expression close-form azimuth modulation function Fourier transform curvature factor imaging algorithm error/ B6320 Radar equipment, systems and applications B6135 Optical, image and video signal processing B0290F Interpolation and function approximation (numerical analysis) B0290X Integral transforms in numerical analysis B6310 Radar theory
中文摘要	Imaging algorithm errors resulting from the second-order approximations in the bistatic range model are reduced by a new range-Doppler (RD) expression. The close-form azimuth modulation function is derived using series reversion. The exact curvature factor is obtained from the correspondence between the instantaneous Doppler frequency and the instantaneous squint angles in the RD domain. The effective range-FM rate is obtained using the classical three-step transformation with the second-order approximation of the bistatic range model. The resulting azimuth modulation and range curvature factor are more accurate than previous methods to the improve the focusing capability of the parallel-track bistatic chirp scaling algorithm.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82697]
专题	清华大学
推荐引用方式 GB/T 7714	Li Feng,Li Shu,Zhao Yigong. An azimuth Fourier transform for parallel-track bistatic SAR[J],2010, 2010.
APA	Li Feng,Li Shu,&Zhao Yigong.(2010).An azimuth Fourier transform for parallel-track bistatic SAR..
MLA	Li Feng,et al."An azimuth Fourier transform for parallel-track bistatic SAR".(2010).

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