| 大地高误差对Bursa七参数平面转换精度的影响 |
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| 引用本文： | 王文利,郭春喜,程传录.大地高误差对Bursa七参数平面转换精度的影响[J].测绘科学,2011,36(5):37-38. |
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| 作者姓名： | 王文利 郭春喜 程传录 |
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| 作者单位： | 国家测绘局大地测量数据处理中心,西安,710054 |
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| 摘 要： | 不同坐标系之间坐标转换,在实际应用中普遍使用Bursa七参数坐标转换模型进行转换.Bursa七参数是三维转换模型,需要重合点的大地高,而大地高通常无法精确获得,大地高误差势必影响转换结果.本文通过具体的试算,研究分析Bursa七参数坐标转换模型中重合点和转换点的大地高误差对转换参数以及转换后的平面结果的影响大小,得出了...
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| 关 键 词： | 大地高 转换参数 重合点 转换点 |
Influence of geodetic height error on planimetric transformation precision of Bursa Seven-parameter |
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| WANG Wen-li,GUO Chun-xi,CHENG Chuan-lu.Influence of geodetic height error on planimetric transformation precision of Bursa Seven-parameter[J].Science of Surveying and Mapping,2011,36(5):37-38. |
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| Authors: | WANG Wen-li GUO Chun-xi CHENG Chuan-lu |
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| Institution: | (Geodetic Data Processing Centre,State Bureau of Surveying and Mapping,Xi′an 710054,China) |
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| Abstract: | For coordinate transformation between different coordinate system,Bursa Seven-parameter transformation is commonly used.Seven-parameter transformation is three-dimension model and needs geodetic height of coincident points.Usually geodetic height cannot be precisely known,and the transformation result is bound to be influenced by geodetic height error.In this paper,the extent how much geodetic height error of coincident points and transformation points influenced transformation parameter and planimetric coo... |
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| Keywords: | geodetic height transformation parameter coincident point transformation point |
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