| 区域似大地水准面精化模型算法的优选 |
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| 引用本文： | 雷伟伟,张锋.区域似大地水准面精化模型算法的优选[J].测绘工程,2011,20(1):33-36. |
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| 作者姓名： | 雷伟伟 张锋 |
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| 作者单位： | 雷伟伟,LEI Wei-wei(河南理工大学测绘与国土信息工程学院,河南焦作,454000);张锋,ZHANG Feng(海军92493部队,辽宁葫芦岛,125001) |
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| 基金项目： | 河南省重点科技攻关项目，河南省教育厅自然科学研究计划项目 |
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| 摘 要： | 建立高精度、高分辨率的区域似大地水准面模型是GPS高程测量在实际应用中必须解决的首要问题,分别介绍BP神经网络、曲面拟合的模型及算法,并基于焦作市GPS测量数据,通过MATLAB编程计算和分类实验,验证几种算法的有效性与可靠性,结果证明神经网络算法要优于其它算法,最后给出有益的结论.
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| 关 键 词： | 似大地水准面精化 BP神经网络 曲面拟合 精度 |
Optimum arithmetic choice model of local quasi geoid determination |
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| LEI Wei-wei,ZHANG Feng.Optimum arithmetic choice model of local quasi geoid determination[J].Engineering of Surveying and Mapping,2011,20(1):33-36. |
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| Authors: | LEI Wei-wei ZHANG Feng |
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| Institution: | LEI Wei-wei1,ZHANG Feng2(1.School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China,2.Navy 92493,Huludao 125001,China) |
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| Abstract: | Establishing local quasi-geoid model in high precision and high resolution was the first problem which must be solved in GPS height surveying application.The model and arithmetic of BP neural networks and surface fitting were introduced in this paper;their validity and reliability were proved through experiment and calculation by MATLAB based on the GPS surveying data of Jiaozuo city.The results indicated that BP neural networks was better than other methods mentioned in the paper,and some useful conclusion... |
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| Keywords: | quasi geogrid determination BP neural networks surface fitting precision |
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