Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/593519
Title: An Efficient Minimum-Discontinuity Phase-Unwrapping Method
Authors: Junyi Xu;Daoxiang An;Xiaotao Huang;Pan Yi
subject: Interferometric synthetic aperture radar (InSAR)|phase unwrapping (PU)|minimum discontinuity (MD)|preunwrapping
Year: 2016
Publisher: IEEE
Abstract: Phase unwrapping (PU) is significant in reconstructing the digital elevation model of a scene from its interferometric synthetic aperture radar (InSAR) data. The classical minimum discontinuity (MD) PU algorithm by Flynn is highly accurate but involves time-consuming computation. To overcome this shortcoming, we proposed a preunwrapping-assisted MD (PAMD) PU method, which has high efficiency and the same unwrapping quality as Flynn's algorithm. In the PAMD method, the phase image is first unwrapped by the preunwrapping algorithm, which generates and optimizes the dipole cuts. The preunwrapping algorithm is fairly fast, and the obtained result is much closer to the optimal solution of MD; therefore, it can be further optimized by Flynn's algorithm efficiently. Tests on simulated and real InSAR data confirm the accuracy and the efficiency of the proposed method.
URI: http://localhost/handle/Hannan/175382
http://localhost/handle/Hannan/593519
ISSN: 1545-598X
1558-0571
volume: 13
issue: 5
Appears in Collections:2016

Files in This Item:
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Title: An Efficient Minimum-Discontinuity Phase-Unwrapping Method
Authors: Junyi Xu;Daoxiang An;Xiaotao Huang;Pan Yi
subject: Interferometric synthetic aperture radar (InSAR)|phase unwrapping (PU)|minimum discontinuity (MD)|preunwrapping
Year: 2016
Publisher: IEEE
Abstract: Phase unwrapping (PU) is significant in reconstructing the digital elevation model of a scene from its interferometric synthetic aperture radar (InSAR) data. The classical minimum discontinuity (MD) PU algorithm by Flynn is highly accurate but involves time-consuming computation. To overcome this shortcoming, we proposed a preunwrapping-assisted MD (PAMD) PU method, which has high efficiency and the same unwrapping quality as Flynn's algorithm. In the PAMD method, the phase image is first unwrapped by the preunwrapping algorithm, which generates and optimizes the dipole cuts. The preunwrapping algorithm is fairly fast, and the obtained result is much closer to the optimal solution of MD; therefore, it can be further optimized by Flynn's algorithm efficiently. Tests on simulated and real InSAR data confirm the accuracy and the efficiency of the proposed method.
URI: http://localhost/handle/Hannan/175382
http://localhost/handle/Hannan/593519
ISSN: 1545-598X
1558-0571
volume: 13
issue: 5
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7435239.pdf1.41 MBAdobe PDFThumbnail
Preview File
Title: An Efficient Minimum-Discontinuity Phase-Unwrapping Method
Authors: Junyi Xu;Daoxiang An;Xiaotao Huang;Pan Yi
subject: Interferometric synthetic aperture radar (InSAR)|phase unwrapping (PU)|minimum discontinuity (MD)|preunwrapping
Year: 2016
Publisher: IEEE
Abstract: Phase unwrapping (PU) is significant in reconstructing the digital elevation model of a scene from its interferometric synthetic aperture radar (InSAR) data. The classical minimum discontinuity (MD) PU algorithm by Flynn is highly accurate but involves time-consuming computation. To overcome this shortcoming, we proposed a preunwrapping-assisted MD (PAMD) PU method, which has high efficiency and the same unwrapping quality as Flynn's algorithm. In the PAMD method, the phase image is first unwrapped by the preunwrapping algorithm, which generates and optimizes the dipole cuts. The preunwrapping algorithm is fairly fast, and the obtained result is much closer to the optimal solution of MD; therefore, it can be further optimized by Flynn's algorithm efficiently. Tests on simulated and real InSAR data confirm the accuracy and the efficiency of the proposed method.
URI: http://localhost/handle/Hannan/175382
http://localhost/handle/Hannan/593519
ISSN: 1545-598X
1558-0571
volume: 13
issue: 5
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7435239.pdf1.41 MBAdobe PDFThumbnail
Preview File