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Weighted joint calibration for interferometric SAR 被引量:1
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作者 Yongfei Mao Maosheng Xiang +1 位作者 yunzhong han Wenjun Gao 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2013年第5期761-771,共11页
Calibration is a processing procedure for across-track interferometric synthetic aperture radar (InSAR) to achieve an accurate three-dimensional location. A calibration technique, called weighted joint calibration, ... Calibration is a processing procedure for across-track interferometric synthetic aperture radar (InSAR) to achieve an accurate three-dimensional location. A calibration technique, called weighted joint calibration, for the generation of wide-area geocoded digital elevation models (DEMs) is proposed. It cali- brates multiple InSAR scenes simultaneously, and allows reducing the number of required ground control points (GCPs) by using tie points (TPs). This approach may ensure the continuity of three- dimensional location among adjacent scenes, which is necessary for mosaic and fusion of data coming from different scenes. In addition, it introduces weights to calibration to discriminate GCPs and TPs with different coherences and locations. This paper presents the principles and methodology of this weighted joint calibration technique and illustrates its successful application in airborne In- SAR data. 展开更多
关键词 CALIBRATION synthetic aperture radar (SAR) interfe- rometry radar data processing.
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