| 改进的AR模型谱估计法提取载波频率 |
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| 引用本文： | 刘军,戴宪华.改进的AR模型谱估计法提取载波频率[J].汕头大学学报(自然科学版),2002,17(3):53-57. |
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| 作者姓名： | 刘军 戴宪华 |
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| 作者单位： | 汕头大学电子信息工程系,汕头,515063 |
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| 摘 要： | 介绍了一种利用改进的现代谱估计方法来估计通信信号载波频率的算法 .把载波的提取看成受到干扰的正弦信号的频率估计 .首先对通信信号进行AR建模 ,求出AR模型表达式的零极点 ,再考虑这些零极点的频率响应 ,去掉那些对频率精度影响较大的零极点 ,这样就可以提高谱估计方法的精度
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| 关 键 词： | 载波频率 谱估计 零极点 频率响应 |
| 文章编号： | 1001-4217(2002)03-0053-05 |
| 修稿时间： | 2002年3月5日 |
An Improved AR Model Spectral Estimation for Carrier Frequency |
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| Liu Jun,Dai Xianhua.An Improved AR Model Spectral Estimation for Carrier Frequency[J].Journal of Shantou University(Natural Science Edition),2002,17(3):53-57. |
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| Authors: | Liu Jun Dai Xianhua |
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| Abstract: | In this paper is proposed an improved AR model spectral estimation for carrier frequency in which the extraction of carrier waves is seen as a frequency estimation of the interfered sinusoidal signals.An AR model was established for communication signals,then the zero pole points of its expression were found out,and then the frequency responses of these zero pole points which would exert bad effects upon frequency precision are excluded so as to raise the precision of spectral estimation. |
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| Keywords: | carrier frequency spectral estimation zero pole point frequency response |
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