| 局部区域GPS网坐标转换的改进模型 |
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| 引用本文： | 张秋昭,张书毕,刘军.局部区域GPS网坐标转换的改进模型[J].全球定位系统,2008,33(5). |
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| 作者姓名： | 张秋昭 张书毕 刘军 |
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| 作者单位： | 1. 中国矿业大学环境与测绘学院,江苏,徐州,221008
2. 江苏省资源环境信息工程重点实验室,徐州,221008 |
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| 摘 要： | GPS的应用经常涉及到坐标变换.用局部小区域的GPS网数据求解三维坐标转换模型(如布尔萨模型)的转换参数时,平移参数精度不高,病态问题较严重.提出了用坐标转换的改进模型,能有效提高平移参数的精度,在一定程度上解决了病态问题,在工程测量中有一定的实用价值.
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| 关 键 词： | 坐标转换 改进模型 病态问题 布尔萨模型 |
Improved Model of Small Area GPS Network Coordinate Transformation |
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| ZHANG Qiu-zhao,ZHANG Shu-bi,LIU Jun.Improved Model of Small Area GPS Network Coordinate Transformation[J].Gnss World of China,2008,33(5). |
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| Authors: | ZHANG Qiu-zhao ZHANG Shu-bi LIU Jun |
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| Institution: | ZHANG Qiu-zhao,ZHANG Shu-bi1,2,LIU Jun1(1.School of Environment Science , Spatial Informatics of CUMT,Xuzhou Jiangsu 221008,2.Jiangsu Key Laboratory of Resources , Environmental Information Engineering CUMT,Xuzhou Jiangsu 221008) |
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| Abstract: | The GPS coordinates are often needed transformed when they are used.If the transformation parameters are solved with the GPS data in a small area,the precision of transformation parameters may be very poor,especially the translation parameters.With the improved coordinate transformation model,we can improve the accuracy of translation parameters effectively.Therefore this paper has a certain practical value in engineering surveying. |
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| Keywords: | Coordinate transformation improved model ill-posed problem Bursa model |
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