无缝仿射基准转换模型的方差分量估计

doi:10.11947/j.AGCS.2016.20140676

测绘学报 ›› 2016, Vol. 45 ›› Issue (1): 30-35.doi: 10.11947/j.AGCS.2016.20140676

无缝仿射基准转换模型的方差分量估计

李博峰

同济大学测绘与地理信息学院, 上海 200092

收稿日期:2014-12-22 修回日期:2015-08-30 出版日期:2016-01-20 发布日期:2016-01-28
作者简介:李博峰(1983—),男,博士,教授,研究方向为多频多模GNSS数据处理理论及应用新技术。
基金资助:
国家自然科学基金(41374031; 41574023);地理信息工程国家重点试验室开放基金(SKLGIE2013-M-2-2) ;测绘地理信息公益性行业科研专项经费(HY14122136)

Variance Component Estimation in the Seamless Affine Transformation Model

LI Bofeng

College of Surveying and Geo-informatics, Tongji University, Shanghai 200092, China

Received:2014-12-22 Revised:2015-08-30 Online:2016-01-20 Published:2016-01-28
Supported by:
The National Natural Science Foundation of China(Nos. 41374031;41574023);Open Research Fund of the State Key Laboratory of Geoinformation Engineering (No. SKLGIE2013-M-2-2);The China Special Fund for Surveying, Mapping and Geoinformation Research in the Public Interest (No. HY14122136)

摘要/Abstract

摘要： 以无缝仿射基准变换为例,研究了无缝基准转换模型的方差分量估计理论,导出无缝基准变换过程中两套坐标的方差分量估计公式。通过模拟试验分析表明,采用方差分量估计方法能正确地恢复出客观体现两套坐标误差的方差值,从而有效提高无缝基准转换精度。

关键词: 无缝基准转换, 仿射变换, 方差分量估计

Abstract: With the seamless affine transformation as an instance, the variance component estimation (VCE) theory is studied in the seamless datum transformation. The VCE formula of the seamless transformation model is derived. The results from the simulation experiments show that the VCE can correctly recover the objective variance components of coordinates in two datums. As a result, the accuracy of seamless transformation can be improved.

Key words: seamless datum transformation, affine transformation, variance component estimation

中图分类号:

P207

李博峰. 无缝仿射基准转换模型的方差分量估计[J]. 测绘学报, 2016, 45(1): 30-35.

LI Bofeng. Variance Component Estimation in the Seamless Affine Transformation Model[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(1): 30-35.

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无缝仿射基准转换模型的方差分量估计

Variance Component Estimation in the Seamless Affine Transformation Model

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