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Chirp scaling algorithm for parallel bistatic SAR data processing

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5 Author(s)
Zhenhua Zhang ; Nat. key Lab. for Radar Signal Process., Xidian Univ., Xi''an, China ; Mengdao Xing ; LiangHai Li ; Jie Zhen
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This paper discusses parallel bistatic synthetic aperture radar (SAR) processing using chirp scaling algorithm. The key step is to use an analytical form of the signal spectrum derived by the geometry-based bistatic formula (GBF) method. With the above formula, a chirp scaling (CS) algorithm is proposed for azimuth-shift-invariant bistatic SAR processing. The presented algorithm can well resolve the range variation of motion through range cell(MTRC) for bistatic SAR, and requires no interpolate; it requires only FFTs and complex multiplies, these attributes lead to efficient implementations of FFT-based signal processors and high speed parallel processors; it can be used for high resolution image formation.

Published in:

Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009  (Volume:2 )

Date of Conference:

12-17 July 2009