Paper Info
Title
Optimal 3D deformation measuring in inclined geosynchronous orbit SAR differential interferometry.
Abstract
Three dimensional (3D) deformation can be obtained by using differential interferometric synthetic aperture radar (D-InSAR) technique with the cross-heading tracks data of low earth orbit (LEO) SAR. However, this method has drawbacks of the low temporal sampling rate and the limited area and accuracy for 3D defor- mation retrieval. To address the aforementioned problems, by virtue of a geosynchronous (GEO) SAR platform, this paper firstly demonstrates the expressions of 3D deformation and the corresponding errors in GEO SAR multi-angle processing. An optimal multi-angle data selection method based on minimizing position dilution of precision (PDOP) is proposed to obtain a good 3D deformation retrieval accuracy. Moreover, neural network is utilized for analyzing the accuracy of the retrieved 3D deformation under different orbit configurations and geo-locations. Finally, the proposed methods and the theoretical analysis are verified by simulation experiments. A 3D deformation retrieval accuracy of the order of centimeter-level or even millimeter-level can be obtained by using the selected optimal multi-angle data.
Year
DOI
Venue
2017
10.1007/s11432-016-9083-4
SCIENCE CHINA Information Sciences
Keywords
Field
DocType
geosynchronous synthetic aperture radar (GEO SAR), three dimensional (3D) deformation measurement, multi-angle processing, differential SAR (D-InSAR), neural network
Interferometric synthetic aperture radar,Control theory,Sampling (signal processing),Algorithm,Geosynchronous orbit,Interferometry,Earth's orbit,Deformation (mechanics),Artificial neural network,Dilution of precision,Geodesy,Mathematics
Journal
Volume
Issue
ISSN
60
6
1674-733X
Citations 
PageRank 
References 
4
0.52
15
Authors
5
Name
Order
Citations
PageRank
Hu, Cheng1128.35
yuanhao li2307.30
Xichao Dong37620.58
Rui Wang46720.39
Chang Cui573.74