| 小波分析在GPS消噪中的应用探讨 |
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| 引用本文： | 李海文.小波分析在GPS消噪中的应用探讨[J].四川测绘,2010,33(3):110-112. |
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| 作者姓名： | 李海文 |
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| 作者单位： | 广西建设职业技术学院土木系,广西,南宁,530003 |
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| 摘 要： | 采用VB语言与MATLAB语言编程,提取南宁实验GPS控制网观测数据中的原始载波信号,利用小波分析理论在多尺度、多分辨率、可伸缩、可平移等分析方面的优势,分别对提取的原始载波信号、单差观测值、双差观测值采用bd3小波函数进行3层小波分解,研究高频信号特点以及不同差分方法消除噪声的效果。将小波分析理论作为数学工具,实施GPS观测数据小波分解和重组,对于发现并削弱GPS误差具有一定的参考价值。
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| 关 键 词： | 小波 GPS 消噪 |
The Discussion of GPS De-noising Effect Based on Wavelet Analysis |
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| LI Hai-wen.The Discussion of GPS De-noising Effect Based on Wavelet Analysis[J].Surveying and Mapping of Sichuan,2010,33(3):110-112. |
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| Authors: | LI Hai-wen |
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| Institution: | LI Hai-wen(Department of Civil Engineering,Guangxi Polytechnic of Construction,Nanning 530003,China) |
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| Abstract: | The author using VB and MATLAB programming language,extracting the original carrier signal of Nanning experimental GPS control network observation data,using wavelet analysis theory in multi-scale,multi-resolution,scalable,shiftable the advantage of such analysis separately extracted from original carrier signal,single-difference observations,the use of double difference observations db3 wavelet function for 3-layer wavelet decomposition to study the characteristics of high-frequency signals and different f... |
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| Keywords: | GPS |
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