| 基于采样方差的卫星钟信号分析 |
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| 引用本文： | 蔺玉亭,李洪涛,王晓芳,白锐锋.基于采样方差的卫星钟信号分析[J].北京测绘,2009(2):10-12. |
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| 作者姓名： | 蔺玉亭 李洪涛 王晓芳 白锐锋 |
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| 作者单位： | 1. 信息工程大学,河南,郑州,450052;61081部队,北京,100094
2. 61081部队,北京,100094 |
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| 摘 要： | 对原子钟频率稳定度分析受到频率漂移的影响进行定性分析，明确了不同类型方差在原子钟频率稳定度分析中的适用范围，首次提出将重叠Hadamard方差应用于卫星钟信号分析。分别利用Allan方差、Hadamard方差和重叠Hadamard方差对铷钟进行了稳定度计算，结果表明Allan方差的计算结果受频率漂移影响很大，而Hadamard系列方差能够有效克服频率漂移的影响，对于卫星钟的性能表征具有良好的效果。
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| 关 键 词： | 原子钟 频率稳定度 采样方差 |
Analysis of Satellite Clocks Signal Based on Sample Variance |
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| LIN Yu-ting,LI Hong-tao,WANG Xiao-fang,BAI Rui-feng.Analysis of Satellite Clocks Signal Based on Sample Variance[J].Beijing Surveying and Mapping,2009(2):10-12. |
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| Authors: | LIN Yu-ting LI Hong-tao WANG Xiao-fang BAI Rui-feng |
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| Institution: | LIN Yu-ting1,2,LI Hong-tao2,WANG Xiao-fang2,BAI Rui-feng2(1.Information Engineering University,Zhengzhou 450052,China,2.Troops 61081,Beijing 100094,China) |
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| Abstract: | The influences of the satellite clocks' frequency drift to the Allan variance and Hadamard variance is analyzed,then respective scopes of Allan variance and Hadamard variance in frequency stability analysis of atomic clocks is defined.Overlapping Hadamard variance were suggested to be used in analyzing frequency stability analysis of satellite clocks for the first time.The Allan variance,Hadamard variance and overlapping Hadamard variance of the rubidium clocks is computed.Results indicate that Allan varian... |
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| Keywords: | satellite clocks frequency stability sample variance |
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