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长度投影变形对CP III平面网精度影响的计算实验

廖高毅 刘成龙

铁道科学与工程学报2017,Vol.14Issue(1):7-11,5.
铁道科学与工程学报2017,Vol.14Issue(1):7-11,5.

长度投影变形对CP III平面网精度影响的计算实验

Computational experiments about the influence of projective defermation on horizontal CPIII central network

廖高毅 1刘成龙2

作者信息

  • 1. 西南交通大学 地球科学与环境工程学院,四川 成都610031
  • 2. 西南交通大学 高速铁路运营安全空间信息技术国家地方联合工程实验室,四川 成都610031
  • 折叠

摘要

Abstract

In order to investigate projective deformation’ s impact in CPIII plane measurements, This paper has chosen three segments of different lengths measured CPIII plane, as a contrast, another CPIII plane without pro-jective deformation has been simulated. Then , different proportions changes have been added on measured dis-tances in this four planes, this paper analysis the precisions of all the control points in different proportions, and find out the most precisions will be achieved by using the value of K, which calculated from free-network adjust-ment. This conclusion is properly provide a useful reference in CPIII plane data processing.

关键词

CPIII平面网/长度投影变形/自由网平差/坐标转换

Key words

CPIII plane network/projective deformation/free-network adjustment/coordinate transformation

分类

天文与地球科学

引用本文复制引用

廖高毅,刘成龙..长度投影变形对CP III平面网精度影响的计算实验[J].铁道科学与工程学报,2017,14(1):7-11,5.

基金项目

长江学者和创新团队发展计划资助项目( PCSIRT) ( PCSIRT)

铁道科学与工程学报

OA北大核心CSCDCSTPCD

1672-7029

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