| 含噪声信号频率的零极点法检测 |
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| 引用本文： | 钱颖.含噪声信号频率的零极点法检测[J].各界,2009(6). |
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| 作者姓名： | 钱颖 |
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| 作者单位： | 北方民族大学; |
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| 摘 要： | 在噪声中进行正弦信号的识别有着很实际的意义。本文利用现代谱估计中AR模型系数多项式的根,即零极点法对含噪声正弦信号进行频率识别。考虑在不同的信噪比及不同的信号频率时,该方法的特点和适应性。相关结论用MATLAB仿真。
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| 关 键 词： | 信号识别 自相关 谱估计 AR模型 |
The Detection of Frequency of Signals in Noise by AR Model |
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| Abstract: | The identification of the sine signals in noise has a very practical significance. In this article the frequency of sine signal with noise is recognized by using polynomial root of AR model coefficients in the modern spectrum spectral estimation. The characteristics and the adaptability of the method is being considered in light of different signal-to-noise ratio and signal frequency. The related conclusion is simulated by MATLAB. |
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| Keywords: | Signal Recognition Autocorrelation Spectrum Estimation AR Model |
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