高超声速飞行器成像算法

doi:10.3969/j.issn.1001-2400.2012.05.013

Abstract

Abstract:

The SAR system on hypersonic vehicles, which is a hot issue of Aeronautics and Astronautics all over the world, faces two significant problems, the coupling of Doppler with range time and the dechirped data imaging in a squint mode. This paper, which incorporates the FMCW SAR geometric model, derives a new de-coupling EFSA. The algorithm can be used to formulate SAR imaging in squint cases without much degradation. Finally, simulated results are given to illustrate the validity of the proposed algorithm.

Key words: hypersonic vehicle, squint, synthetic aperture radar, extended frequency algorithm, frequency modulation continue wave

CLC Number:

TN957.51

LIU Gaogao;ZHANG Linrang;LIU Nan;LIU Xin;ZHANG Bo;CHEN Guangfeng. SAR imaging algorithm for hypersonic vehicles[J].J4, 2012, 39(5): 72-78.

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SAR imaging algorithm for hypersonic vehicles

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