Shift variant mode double-base synthetic aperture radar imaging method

A synthetic aperture radar and bistatic technology, applied in the field of radar, can solve the problem of lack of effective imaging methods for synthetic aperture radar
CN101369017AActive Publication Date: 2009-02-18四川电子科技大学教育发展基金会
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
四川电子科技大学教育发展基金会
Publication Date
2009-02-18

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Abstract

The invention provides an imaging method for a shift-variant mode Bistatic Synthetic Aperture Radar (Bistatic SAR) based on inverse variable metric Fourier transform, and the method aims at the characteristic that the resolution of the shift-variant mode Bistatic Synthetic Aperture Radar (Bistatic SAR) changes by time, and uses variable metric Fourier transform to eliminate the adverse effect brought to the imaging of the Bistatic Synthetic Aperture Radar (Bistatic SAR) by the resolution of the shift-variant mode Bistatic Synthetic Aperture Radar (Bistatic SAR) changing by time, so as to use less calculation to achieve the imaging of the shift-variant mode Bistatic Synthetic Aperture Radar (Bistatic SAR). The method solves the shift-variant mode Bistatic Synthetic Aperture Radar (Bistatic SAR) imaging problem, and is characterized in that the method uses less calculation to achieve the imaging of the shift-variant mode Bistatic Synthetic Aperture Radar (Bistatic SAR). The method can be applied to the fields of Synthetic Aperture Radar ( SAR) imaging, earth remote sensing and the like.
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Description

Technical field:

[0001] The invention belongs to the technical field of radar, and in particular relates to a shift-variable mode bistatic synthetic aperture radar imaging method based on variable-scale inverse Fourier transform in the synthetic aperture radar (SAR) imaging technology. Background technique:

[0002] Bistatic Synthetic Aperture Radar (Bistatic SAR) is a new type of synthetic aperture radar system in which the receiver and transmitter are installed on different moving platforms. Bistatic SAR not only maintains the high-resolution characteristics of the SAR system, but also improves the flexibility, anti-jamming ability and survivability of the radar system. It has become a research hotspot in the field of SAR recently. According to my knowledge and published literature, for example: Brian D.Righling, Member, IEEE, Randolph L.Moses. "MotionMeasurement Errors and Autofocus in Bistatic SAR". IEEE Trans on Imageprocessing.Vol.15, No.4.Apr. 2006; Yates, B, Home, A...

Claims

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