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Issue:
Research on Union Localization and Mosaic Technology of InSAR Data
Author(s):
MA Jing1
,
2
,
3 YOU Hongjian1
,
2 HU Donghui1
,
2
Pages:
410
-
414
Year:
2012
Issue:
4
Journal:
Geomatics and Information Science of Wunan University
Keyword:
机载InSAR
;
区域网平差
;
定位精度
;
图像拼接
;
Abstract:
针对大区域多航带InSAR(干涉合成孔径雷达)影像定位及拼接时缺少GCP(地面控制点)的问题,提出了一种多航带InSAR影像联合定位的方法。该方法借鉴摄影测量中的光束法平差思想,并利用InSAR干涉定标后得到影像上各点高程值。通过对四川绵阳地区的多航带InSAR实际数据的实验,验证了本方法的可行性,且精度达到了各景影像独立校正的水平。分析了控制点数量、位置、重叠区域范围、地形起伏对平差精度的影响,并给出了控制点布放原则。
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