基于史赖伯规则的机载InSAR区域网平差

发布时间：2018-05-05 16:59

本文选题：合成孔径雷达干涉测量 + 史赖伯规则　；参考：《武汉大学学报(信息科学版)》2017年09期

【摘要】：采用区域网平差的方法进行合成孔径雷达干涉测量(interferometric synthetic aperture radar,InSAR)干涉参数定标,是减小大区域、多个干涉像对重叠处反演高程差异的有效方法。为了提高InSAR区域网平差的答解效能,设计一种利用史赖伯规则的机载InSAR区域网平差干涉参数定标方法。该方法利用史赖伯规则,由连接点误差方程式构建等效误差方程式,可有效减小法方程系数矩阵大小,降低对计算机配置的要求,提高平差的答解效能。采用我国机载双天线InSAR数据进行干涉参数定标试验,改化前后两种方案,干涉参数定标结果没有明显变化,改化后的平差耗时均值减小了,验证了利用史赖伯规则的机载InSAR区域网平差干涉参数定标的正确性和有效性。
[Abstract]:The interference parameter calibration of synthetic aperture radar interferometry (interferometric synthetic aperture radar, InSAR) is carried out by regional network adjustment. It is an effective method to reduce the inversion elevation difference between large area and multiple interference images. In order to improve the answer efficiency of InSAR regional network adjustment, a kind of use of the sirber rule is designed. The interference parameter calibration method of the airborne InSAR regional network adjustment is used. This method uses the sirber rule to construct the equivalent error equation by the connection point error equation. It can effectively reduce the size of the coefficient matrix of the normal equation, reduce the requirements for the computer configuration and improve the response efficiency of the adjustment. The interference parameters of our airborne dual antenna InSAR data are used. The calibration test, the two schemes before and after modification, the interference parameter calibration results have not changed obviously, the average time difference of the adjustment after modification is reduced, and the correctness and validity of the interferometric parameter calibration of the airborne InSAR regional network adjustment using the sirber rule is verified.

【作者单位】：信息工程大学地理空间信息学院;中国测绘科学研究院;
【基金】：国家自然科学基金(41071296,41474010,61401509) 国家高技术研究发展计划(2011AA120402)~~
【分类号】：P237

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