| WHCORS边缘区域的转换参数处理与精度验证 |
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| 引用本文： | 沈兴明,刘港,熊忠招.WHCORS边缘区域的转换参数处理与精度验证[J].地理空间信息,2008,6(5):114-116. |
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| 作者姓名： | 沈兴明 刘港 熊忠招 |
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| 作者单位： | 1. 湖北省国土测绘院,湖北,武汉,430010
2. 鄂西北地质矿产调查所,湖北,襄樊,441003 |
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| 摘 要： | 以新洲区土地利用现状调查生产实例，采用重新确定WHCORS系统虚拟参考站坐标转换参数的方法，提高WHCORS边缘区域定位精度，扩展WHCORS系统cm级覆盖范围，采用拟合高程与水准高程差值分布图改正测点高程的方法，提高未完成大地水准面精化工作地区的GPS高程测量精度，并通过实测结果的精度分析，验证了方法的可行性。
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| 关 键 词： | GPS 虚拟参考站 转换参数 精度验证 |
Processing and Precision Validation of Transformation Parameter for Marginal Areas of GPS Virtual Reference Station |
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| SHEN Xingming,LIU Gang,XIONG Zhongzhao.Processing and Precision Validation of Transformation Parameter for Marginal Areas of GPS Virtual Reference Station[J].Geospatial Information,2008,6(5):114-116. |
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| Authors: | SHEN Xingming LIU Gang XIONG Zhongzhao |
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| Institution: | SHEN Xingming, LIU Gang, XIONG Zhongzhao (1. Hubei National Land Surveying and Mapping Institute, Wuhan 430010, China; 2. Institute of Exibei Geology and Mineral Resources Survey, Xiangfan 441003, China) |
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| Abstract: | Taking land-use investigation in Xinzhou for example,the system improved positioning accuracy of WHCORS region,expanded WHCORS system cm-level coverage,by using the method for determining WHCORS virtual reference station coordinate trandformation parameters,and enhanced GPS height measure-ment accuracy in non-finished region of geoid refinement by using margin distribution of fitting height and level-ing elevation to correct the measuring point elevation and verified the feasibility of the method threough analysis of the test results accuracy. |
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| Keywords: | GPS |
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