| 基于小波分析的卫星钟噪声处理方法研究 |
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| 引用本文： | 蔺玉亭,王晓芳,白锐锋.基于小波分析的卫星钟噪声处理方法研究[J].四川测绘,2009,32(3):115-118. |
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| 作者姓名： | 蔺玉亭 王晓芳 白锐锋 |
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| 作者单位： | [1]信息工程大学测绘学院,河南郑州450052 [2]61081部队,北京100094 |
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| 摘 要： | 根据原子钟信号噪声的特点，引入了小波分析的处理方法，并给出了小波分析函数的数学模型和滤波器构建方法。利用该方法对卫星钟的钟差数据进行分析，并利用allan方差对处理结果进行评估，结果显示小波分析方法有效地减弱了原子钟信号噪声，原子钟的频率稳定度得到了明显提高。
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| 关 键 词： | 噪声处理 小波分析 allan方差 卫星钟 |
Research on Noise Processing of Satellite Clocks Based on Wavelet Analysis |
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| LIN Yu-ting,WANG Xiao-fang,BAI Rui-feng.Research on Noise Processing of Satellite Clocks Based on Wavelet Analysis[J].Surveying and Mapping of Sichuan,2009,32(3):115-118. |
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| Authors: | LIN Yu-ting WANG Xiao-fang BAI Rui-feng |
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| Institution: | 1.Institute of Surveying and Mapping;Information Engineering University;Zhengzhou 450052;China;2.Troops 61081;Beijing 100094;China |
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| Abstract: | This article induced wavelet analysis method with the model function of wavelet and the construction of filter by analyzing the characteristic of noise of satellite clocks.The clock offset data was analyzed using the wavelet method and the results were evaluated through Allan deviation.It shows that wavelet method effectively restrains the noise of signals and the frequency stability is improved obviously. |
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| Keywords: | Noise processing Wavelet analysis Allan deviation Satellite clocks |
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