| GPS高程异常拟合研究及精度分析 |
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| 引用本文： | 闫建伟,周长江.GPS高程异常拟合研究及精度分析[J].全球定位系统,2014(1):68-71. |
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| 作者姓名： | 闫建伟 周长江 |
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| 作者单位： | [1] 铁道第三勘察设计院集团有限公司,天津300142 [2] 中国矿业大学环境与测绘学院,江苏徐州221116 |
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| 摘 要： | 本文论述了正交多项式和基于BP人工神经网络的GPS高程异常拟合原理，分析了这几种算法的优缺点。并结合实例计算，比较分析各方法的精度。最后得出改进的BP神经网络的方法精度要优于多项式拟合和标准BP算法。
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| 关 键 词： | GPS高程异常 正交多项式 BP神经网络 |
Resarch on Method of GPS Height Abnormal Fitting and Accuracy Analysis |
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| YAN Jianwei,ZHOU Changjiang.Resarch on Method of GPS Height Abnormal Fitting and Accuracy Analysis[J].Gnss World of China,2014(1):68-71. |
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| Authors: | YAN Jianwei ZHOU Changjiang |
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| Institution: | YAN Jianwei, ZHOU Changjiang |
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| Abstract: | The principle of quadric polynomail and artificial neural network for conversion of GPS height is discussed ,and their anvantages and disadvantages is presented .The pro-gram was done by Matlab software ,calculated with specific example .The accuracy was ana-lyzed and compared with different methods .At last the conclusion shows that the improved BP neural network is better than the standard BP neural network and quadric polynomail . |
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| Keywords: | Matlab GPS height abmormal quadric polynomial BP neural network Matlab |
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