Please use this identifier to cite or link to this item: http://dlib.scu.ac.ir/handle/Hannan/173947
Title: A Weighted Backprojection Algorithm for Azimuth Multichannel SAR Imaging
Authors: Jiangwen Tang;Yunkai Deng;Robert Wang;Shuo Zhao;Ning Li;Wei Wang
subject: azimuth multichannel SAR|Azimuth ambiguity|nonuniform sampling|backprojection algorithm (BPA)
Year: 2016
Publisher: IEEE
Abstract: A backprojection algorithm (BPA), a time domain synthetic aperture radar (SAR) imaging algorithm, can be widely used without modification in various imaging modes, like stripmap, spotlight, sliding spotlight, etc. However, BPA also suffers when used in azimuth multichannel SAR due to the nonuniform sampling problem caused by a nonideal pulse repetition frequency. In this letter, we propose a weighted BPA (WBPA) for azimuth multichannel SAR imaging. Derived from the filter-bank-based reconstruction method, WBPA adds a weighting procedure to BPA. Simulations and an airborne SAR data experiment demonstrate that WBPA can perfectly suppress the azimuth ambiguities under band-limited circumstances. WBPA extends the applicable scope of BPA.
URI: http://localhost/handle/Hannan/173947
ISSN: 1545-598X
1558-0571
volume: 13
issue: 9
More Information: 1265
1269
Appears in Collections:2016

Files in This Item:
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Title: A Weighted Backprojection Algorithm for Azimuth Multichannel SAR Imaging
Authors: Jiangwen Tang;Yunkai Deng;Robert Wang;Shuo Zhao;Ning Li;Wei Wang
subject: azimuth multichannel SAR|Azimuth ambiguity|nonuniform sampling|backprojection algorithm (BPA)
Year: 2016
Publisher: IEEE
Abstract: A backprojection algorithm (BPA), a time domain synthetic aperture radar (SAR) imaging algorithm, can be widely used without modification in various imaging modes, like stripmap, spotlight, sliding spotlight, etc. However, BPA also suffers when used in azimuth multichannel SAR due to the nonuniform sampling problem caused by a nonideal pulse repetition frequency. In this letter, we propose a weighted BPA (WBPA) for azimuth multichannel SAR imaging. Derived from the filter-bank-based reconstruction method, WBPA adds a weighting procedure to BPA. Simulations and an airborne SAR data experiment demonstrate that WBPA can perfectly suppress the azimuth ambiguities under band-limited circumstances. WBPA extends the applicable scope of BPA.
URI: http://localhost/handle/Hannan/173947
ISSN: 1545-598X
1558-0571
volume: 13
issue: 9
More Information: 1265
1269
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7500107.pdf1.02 MBAdobe PDFThumbnail
Preview File
Title: A Weighted Backprojection Algorithm for Azimuth Multichannel SAR Imaging
Authors: Jiangwen Tang;Yunkai Deng;Robert Wang;Shuo Zhao;Ning Li;Wei Wang
subject: azimuth multichannel SAR|Azimuth ambiguity|nonuniform sampling|backprojection algorithm (BPA)
Year: 2016
Publisher: IEEE
Abstract: A backprojection algorithm (BPA), a time domain synthetic aperture radar (SAR) imaging algorithm, can be widely used without modification in various imaging modes, like stripmap, spotlight, sliding spotlight, etc. However, BPA also suffers when used in azimuth multichannel SAR due to the nonuniform sampling problem caused by a nonideal pulse repetition frequency. In this letter, we propose a weighted BPA (WBPA) for azimuth multichannel SAR imaging. Derived from the filter-bank-based reconstruction method, WBPA adds a weighting procedure to BPA. Simulations and an airborne SAR data experiment demonstrate that WBPA can perfectly suppress the azimuth ambiguities under band-limited circumstances. WBPA extends the applicable scope of BPA.
URI: http://localhost/handle/Hannan/173947
ISSN: 1545-598X
1558-0571
volume: 13
issue: 9
More Information: 1265
1269
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7500107.pdf1.02 MBAdobe PDFThumbnail
Preview File