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Proceedings Paper

Using frequency-scaling approach to process squint-mode spotlight SAR data
Author(s): Jinping Sun; Shiyi Mao; Zhongkan Liu; Wen Q. Hong
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Paper Abstract

Frequency scaling approach is a new spotlight SAR image formation algorithm. It precisely performs the range cell migration correction for dechirped raw data without interpolation by using a novel frequency scaling operation while residual video phase is corrected simultaneously. The computation requirements are lower than the other spotlight SAR image formation approaches such as polar format algorithm and range migration algorithm. In this paper, frequency scaling algorithm is applied to process high squint spotlight data. The new squint illumination geometry is defined and some modifications to the basic algorithm are presented. Point target simulations up to 45 deg squint angle are carried out to show the validity of the algorithm.

Paper Details

Date Published: 27 August 2001
PDF: 7 pages
Proc. SPIE 4382, Algorithms for Synthetic Aperture Radar Imagery VIII, (27 August 2001); doi: 10.1117/12.438214
Show Author Affiliations
Jinping Sun, Beijing Univ. of Aeronautics and Astronautics (China)
Shiyi Mao, Beijing Univ. of Aeronautics and Astronautics (China)
Zhongkan Liu, Beijing Univ. of Aeronautics and Astronautics (China)
Wen Q. Hong, Beijing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 4382:
Algorithms for Synthetic Aperture Radar Imagery VIII
Edmund G. Zelnio, Editor(s)

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