| 浅析GPS高程拟合在城镇控制测量中的应用 |
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| 引用本文： | 冯金宇,麻维.浅析GPS高程拟合在城镇控制测量中的应用[J].测绘与空间地理信息,2012(3):78-79,82. |
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| 作者姓名： | 冯金宇 麻维 |
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| 作者单位： | 哈尔滨市勘察测绘研究院;黑龙江省测绘产品质量监督检验站 |
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| 摘 要： | GPS测量的大地高精度达到了(3～4)×10-6,本文结合城镇控制测量对GPS高程拟合情况进行了分析。研究结果表明,通过施测少量均匀分布的GPS点的水准高程,采用BP神经网络方法拟合GPS点正常高可以部分替代水准高程或三角高程。
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| 关 键 词： | 神经网络 GPS高程 正常高 BP网络算法 |
Analysis of GPS Height Fitting in Urban Control Survey |
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| FENG Jin-yu,MA Wei.Analysis of GPS Height Fitting in Urban Control Survey[J].Geomatics & Spatial Information Technology,2012(3):78-79,82. |
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| Authors: | FENG Jin-yu MA Wei |
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| Institution: | 1.Harbin Research Institute of Geotechnical Investigation,Surveying and Mapping,Harbin 150010,China;2.Surveying and Mapping Product Quality Supervision and Inspection Station of Heilongjiang Province,Harbin 150086,China) |
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| Abstract: | The accuracy of GPS measurement has reached(3~4)×10-6.With the urban GPS control survey,the GPS height fitting is analyzed.The results show that,through measuring the leveling of a small number of GPS points which are evenly distributed,the leveling height or trigonometric leveling height can be replaced by the normal height of GPS points by using the method of BP neutral network. |
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| Keywords: | neural network GPS height normal height BP network algorithm |
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