| 地方局部坐标系与WGS 84坐标系的转换方法研究 |
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| 引用本文： | 高宝华,陈新,范孝忠,沈浩.地方局部坐标系与WGS 84坐标系的转换方法研究[J].海洋测绘,2010,30(6):5-7. |
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| 作者姓名： | 高宝华 陈新 范孝忠 沈浩 |
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| 作者单位： | 解放军信息工程大学 测绘学院,河南 郑州 450052;72946 部队,山东 淄博 255000 |
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| 摘 要： | 首先指出坐标转换的必要性,然后对常用的转换方法布尔莎七参数模型和一步法进行介绍。通过实验数据,发现了七参数模型旋转矩阵中的三角函数值在欧勒角较大时强行近似带来的精度损失,以及七参数模型与一步法各自的适用条件和优缺点。
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| 关 键 词： | 坐标变换 布尔莎七参数模型 一步法 |
Research on the Coordinate Transformation Method Between Local Coordinate System and WGS 84 |
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| GAO Bao-hu,CHEN Xin,FAN Xiao-zhong,SHEN Hao.Research on the Coordinate Transformation Method Between Local Coordinate System and WGS 84[J].Hydrographic Surveying and Charting,2010,30(6):5-7. |
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| Authors: | GAO Bao-hu CHEN Xin FAN Xiao-zhong SHEN Hao |
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| Institution: | Institute of Surveying and Mapping,Information Engineering University,Zhengzhou,Henan, 450052; 72946 Troops,Zibo,Shandong, 255000 |
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| Abstract: | First,this paper points out the necessity of coordinate transformation,then introduces two popular transformation methods:Brusa model with 7 parameters and one-step method. Through experiment,the results not only implied the precision loss caused by the trigonometry value in the rotation matrix of 7-parameter model when Euler Angles was forced to approximate, but also showed us the respective suitable conditions of 7-parameter model and one-step method and their advantages and disadvantages. |
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