| 基于不同坐标参数类型的GPS单点定位研究 |
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| 引用本文： | 连丽珍,王解先,杜锐.基于不同坐标参数类型的GPS单点定位研究[J].全球定位系统,2010,35(5):29-32. |
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| 作者姓名： | 连丽珍 王解先 杜锐 |
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| 作者单位： | [1]同济大学测量系,上海200092 [2]现代工程测量国家测绘局重点实验室,上海200092 |
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| 摘 要： | GPS伪距单点定位结果可表示为几种不同的坐标形式，通过数值导数的方法，分别将误差方程中的参数设为空间直角坐标、大地坐标以及高斯平面坐标，直接得出了这三种坐标形式的伪距单点定位结果，有利于提高大批量坐标转换的执行效率。另外考虑到有些测站大地高已知的情况，还讨论了定位结果为大地坐标时固定大地高和给定大地高但容许其有小量偏差的情况。
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| 关 键 词： | 单点定位 数值导数 空间直角坐标 大地坐标 高斯坐标 |
Research for GPS Single Point Positioning in Different Coordinate System |
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| LIAN Li-zhen,WANG Jie-xian,DU Rui.Research for GPS Single Point Positioning in Different Coordinate System[J].Gnss World of China,2010,35(5):29-32. |
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| Authors: | LIAN Li-zhen WANG Jie-xian DU Rui |
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| Institution: | 1. Department of Surveying and Geomatics , Tongji University, Shanghai 200092,China; 2. Key Laboratory of Modern Engineering Surveying, State Bureau of Surveying and Mapping, Shanghai 20092. China) |
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| Abstract: | The result of single point positioning using GPS pseudorange observation can be expressed in different coordinate system. In this paper, with the method of numerical derivative, we set the parameters of the error equations to be space rectangular coordinate, ge- odetic coordinate and Gauss horizontal coordinate, and then get three types of coordinate po- sition directly. In this way, we can improve the efficiency of batch coordinate transform pro- cessing . Additionally, considering that some station point may have the observation of geo- detic elevation, the situations of fixed geodetic elevation and small deviation of a given geodetic elevation are discussed. |
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| Keywords: | Single point positioning numerical derivative space rectangular coordinate geodetic coordinate Gauss horizontal coordinate |
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