Spaceborne/airborne bistatic synthetic aperture radar focusing on an analytical bistatic point target reference spectrum | Zendy

Xu Haisheng | Zendy; Song Hongjun | Zendy; Deng Yunkai | Zendy; Wang Robert | Zendy; Shan Xiuming | Zendy; Yuan Jian | Zendy; Wang Chunle | Zendy

Open Access

Spaceborne/airborne bistatic synthetic aperture radar focusing on an analytical bistatic point target reference spectrum

Author(s) -

Xu Haisheng,

Song Hongjun,

Deng Yunkai,

Wang Robert,

Shan Xiuming,

Yuan Jian,

Wang Chunle

Publication year - 2013

Publication title -

iet radar, sonar and navigation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.489

H-Index - 82

eISSN - 1751-8792

pISSN - 1751-8784

DOI - 10.1049/iet-rsn.2012.0133

Subject(s) - bistatic radar , remote sensing , synthetic aperture radar , point target , passive radar , point (geometry) , radar , computer science , geology , radar imaging , optics , physics , telecommunications , mathematics , geometry

An analytical bistatic point target reference spectrum (BPTRS) is proposed. The BPTRS is derived from the one‐to‐one relationship between slow time and Doppler frequency with no Taylor series expansions. Based on the BPTRS, a two‐dimensional frequency‐domain focusing algorithm for spaceborne/airborne bistatic synthetic aperture radar is developed. The algorithm exploits a range‐dependent sub‐blocks processing method to perform range cell migration correction and quadratic Doppler term compensation, and then a scaled inverse Fourier transformation and a sinc interpolation are used to correct the geometric distortions in azimuth and range, respectively. Some simulation experiments are also presented to verify their performance.

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