| 平坦地区转换GPS高程的混合转换方法 |
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| 引用本文： | 胡伍生,华锡生,张志伟.平坦地区转换GPS高程的混合转换方法[J].测绘学报,2002,31(2):128-133. |
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| 作者姓名： | 胡伍生 华锡生 张志伟 |
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| 作者单位： | 1. 东南大学,交通学院,江苏,南京,210096
2. 河海大学,土木工程学院,江苏,南京,210098 |
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| 摘 要： | 简要介绍了转换GPS高程的二次曲面拟合法和神经网络方法。然而 ,这 2种方法都有缺点 ,介绍的CF&NNM方法充分利用了 2者的优点 ,通过 2个平坦地区的工程实例 ,证实该方法的有效性 ,并得到一些有工程应用价值的结论。
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| 关 键 词： | 神经网络 BP算法 GSP高程 CF＆NNM方法 二次曲面拟合法 全球定位系统 |
| 文章编号： | 1001-1595(2002)02-0128-06 |
Conversion of GPS Height in Plainness Area by the CF&NNM Method |
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| HU Wu-sheng ,HUA Xi-sheng ,ZHANG Zhi-wei.Conversion of GPS Height in Plainness Area by the CF&NNM Method[J].Acta Geodaetica et Cartographica Sinica,2002,31(2):128-133. |
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| Authors: | HU Wu-sheng HUA Xi-sheng ZHANG Zhi-wei |
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| Institution: | HU Wu-sheng 1,HUA Xi-sheng 2,ZHANG Zhi-wei 1 |
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| Abstract: | The method of conicoid fitting and the method of neural networks used for transforming GPS height are introduced briefly in this paper. The two methods above have shortcomings. The method of CF&NNM, a new method used for transforming GPS height is introduced in this paper, and it takes full advantage of virtues of the two methods. Through the practice of two projects in plainness area, the validity of the CF&NNM method used for transforming GPS height is validated, and some conclusions, which have practicable value, are received. |
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| Keywords: | neural networks algorithm of BP(Back Propagation) GPS height CF&NNM method |
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