| 转换参数改变对GPS定位值的影响及西安80坐标系转换参数求算 |
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| 引用本文： | 荚更生.转换参数改变对GPS定位值的影响及西安80坐标系转换参数求算[J].安徽林业,2011(4). |
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| 作者姓名： | 荚更生 |
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| 作者单位： | 无为县牛埠镇林业站; |
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| 摘 要： | 通过对单个转换参数改变对GPS定位值的影响分析,得出水平方向上的两个定位值(x,y)之间为线性关系,再通过对两个转换参数变化的分析得到一组平行的线性曲线。这些特性的存在为求算WGS84到西安80坐标系间的转换参数提供了可能。笔者利用这些特性求算出一套转换参数,并通过外业定位试验说明它们可以满足林业外业工作的需要。
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| 关 键 词： | 林业外业 GPS 西安80坐标系 转换参数 |
Impact of Changes in Transformation Parameters upon GPS Positioning Data and Calculation of Transformation Parameters in Xi'an80 Coordinate System |
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| Authors: | JIA Geng-sheng |
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| Institution: | JIA Geng-sheng(Niubu Township Forestry Station of Wuwei County,Chaohu 238300,Anhui,China) |
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| Abstract: | In this paper,the impact of a single change in transformation parameters upon GPS positioning data was analyzed,and the linear relationship formula between the two positioning values(x,y) in the horizontal direction was calculated.A group of parallel linear curves were then obtained by analyzing the changes of the two transformation parameters.These features made it possible to calculate the transformation parameters from WGS84 to Xi'an80 Coordinate System.A set of transformation parameters were thus worked... |
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| Keywords: | Forestry field work GPS Xi'an80 coordinate system Transformation parameters |
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