| 总体最小二乘在GPS高程转换中的适用性分析 |
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| 引用本文： | 王柏恒,郝卫峰,何希纯.总体最小二乘在GPS高程转换中的适用性分析[J].测绘与空间地理信息,2016(3):105-109. |
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| 作者姓名： | 王柏恒 郝卫峰 何希纯 |
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| 作者单位： | 1. 江西省基础测绘院,江西南昌,330001;2. 武汉大学中国南极测绘研究中心,湖北武汉,430079;3. 江西应用技术职业学院,江西赣州,341000 |
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| 摘 要： | 在GPS高程转换中,位置信息通过观测手段获得,在平差处理中,系数矩阵和观测向量都存在误差。在阐述总体最小二乘平差原理的基础上,以常用的GPS高程转换模型为基础,利用某城市实测GPS数据,证明了总体最小二乘方法在GPS高程转换方面的优势性:模型更合理;精度更高;复杂地形的精度改善更明显。
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| 关 键 词： | 总体最小二乘 GPS 高程转换 适用性 |
Applicability Analysis of Total Least Squares in GPS Height Transformation |
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| Abstract: | In the GPS height transformation, the position information is obtained by means of observation.In the adjustment process-ing, it is also related to the situation that the coefficient matrix and the observation vector have the error.On the base of expounding total least squares adjustment, this paper proves the superiority of the total least squares method in GPS height transformation, based on the commonly used GPS height transformation model, using GPS data from one city.The superiority is more reasonable model;higher accuracy;more obvious accuracy improvement of complex terrain. |
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| Keywords: | total least squares GPS height transformation applicability |
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