方差分量估计在机载InSAR区域网平差中的应用

doi:10.11947/j.AGCS.2016.20150415

测绘学报 ›› 2016, Vol. 45 ›› Issue (5): 592-600.doi: 10.11947/j.AGCS.2016.20150415

方差分量估计在机载InSAR区域网平差中的应用

熊新¹, 靳国旺^1,2, 张红敏¹, 徐青¹

1. 信息工程大学地理空间信息学院, 河南郑州 450001;
2. 中国测绘科学研究院, 北京 100039

收稿日期:2015-08-11 修回日期:2016-02-02 出版日期:2016-05-20 发布日期:2016-05-30
通讯作者: 靳国旺 E-mail:guowang_jin@163.com
作者简介:熊新(1991-),男,硕士生,研究方向为合成孔径雷达干涉测量。E-mail: xiongxinhbhh@163.com
基金资助:
国家自然科学基金(41071296;41474010;61401509);国家863计划(2011AA120402)

Application of Variance Components Estimation in Airborne InSAR Block Adjustment

XIONG Xin¹, JIN Guowang^1,2, ZHANG Hongmin¹, XU Qing¹

1. Institute of Geospacial Information, Information Engineering University, Zhengzhou 450001, China;
2. Chinese Academy of Surveying and Mapping, Beijing 100039, ChinaAbstract

Received:2015-08-11 Revised:2016-02-02 Online:2016-05-20 Published:2016-05-30
Supported by:
The National Natural Science Foundation of China(Nos. 41071296;41474010;61401509);The National High-tech Research and Development Program of China (863 Program)(No. 2011AA120402)

摘要/Abstract

摘要： 基于验后方差分量估计的思想,针对观测值中各类观测分量的方差难以直接估计的问题,研究了机载InSAR区域网平差干涉参数定标权值确定理论,设计了利用Helmert方差分量估计扩展模型的机载InSAR区域网平差干涉参数定标权值确定方法。采用我国机载双天线InSAR数据进行相关试验,表明验后估计定权能合理地顾及DEM的生成精度和拼接精度。

关键词: 合成孔径雷达干涉测量, Helmert, 干涉参数, 区域网平差, 定权

Abstract: Based on the idea of posterior variance component estimation, aiming at the problem that variance component for each observation component can't be estimated directly, the theory of weights determination for airborne InSAR interferometric parameters calibration with block adjustment is studied and the corresponding calibration method is designed on the basis of the extended model of variance components estimation of Helmert type. Calibration experiments performed on Chinese dual antenna airborne InSAR data confirm that the calibration schemes with posterior variance component estimated can take generation accuracy and mosaic accuracy of DEM into account reasonably.

Key words: interferometric synthetic aperture radar, Helmert, interferometric parameters, block adjustment, weights determination

中图分类号:

P231

熊新, 靳国旺, 张红敏, 徐青. 方差分量估计在机载InSAR区域网平差中的应用[J]. 测绘学报, 2016, 45(5): 592-600.

XIONG Xin, JIN Guowang, ZHANG Hongmin, XU Qing. Application of Variance Components Estimation in Airborne InSAR Block Adjustment[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(5): 592-600.

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方差分量估计在机载InSAR区域网平差中的应用

Application of Variance Components Estimation in Airborne InSAR Block Adjustment

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