| 坐标转换精度的分布规律研究 |
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| 引用本文： | 于先文,王庆.坐标转换精度的分布规律研究[J].地理信息世界,2009,7(4). |
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| 作者姓名： | 于先文 王庆 |
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| 作者单位： | 1. 东南大学,交通学院,江苏,南京,210096;东南大学,仪器科学与工程学院,江苏,南京,210096
2. 东南大学,仪器科学与工程学院,江苏,南京,210096 |
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| 基金项目： | "十一五"国家科技支撑计划项目资助 |
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| 摘 要： | 为了得到工程测量中坐标转换精度与公共点分布之间的内在关系,利用误差传播理论,建立了坐标转换精度与公共点信息之间的数学模型.分析该数学模型可得:坐标转换精度是以一点为中心,呈同心圆向外衰减分布.文中给出了相应的圆心坐标及圆半径计算公式.最后,通过算例验证了本文结论的正确性.
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| 关 键 词： | 坐标系 坐标转换 精度分布 公共点 |
Research of the Precision Distributing Regularity of Coordinate Transformation |
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| YU Xian-wen,WANG Qing.Research of the Precision Distributing Regularity of Coordinate Transformation[J].Geomatics World,2009,7(4). |
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| Authors: | YU Xian-wen WANG Qing |
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| Institution: | YU Xian-wen1,2,WANG Qing2 (1. School of Transportation,Southeast University,Nanjing 210096,China,2. School of Instrument Science , Engineering,China) |
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| Abstract: | In order to obtain the internal relationship function between the precision of coordinate transformation and the distribution of common points in engineering survey,the author had established the mathematical model between the precision of coordinate transformation and common points using the error propagation theory. Through analyzing that model,the conclusion could be drawn as follows:The precision of coordinate transformation attenuates while taking a same point which related to the common points as the ... |
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| Keywords: | geodetic coordinate system coordinate transformation precision distribution common points |
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