| 基于AR模型的载频测量 |
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| 引用本文： | 杨书玲,李艳斌.基于AR模型的载频测量[J].无线电工程,2006,36(9):23-25. |
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| 作者姓名： | 杨书玲 李艳斌 |
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| 作者单位： | 中国电子科技集团公司第54研究所,河北,石家庄,050081 |
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| 摘 要： | 从现代谱估计出发,利用Yule_Walker方程构造信号的AR模型,从中提取信号的调制载波频率信息。信号的功率谱表示了信号能量的分布。用谱估计法估计出载波频率后,依据频谱对所测频率进行修正,可有效提高载波频率的测量精度。
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| 关 键 词： | AR模型 Yule_Walker方程 最终预测误差(FPE)准则 |
| 收稿时间： | 2005-12-15 |
| 修稿时间： | 2005年12月15 |
AR Model Based Carrier Frequency Measurement |
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| YANG Shu-ling,LI Yan-bin.AR Model Based Carrier Frequency Measurement[J].Radio Engineering of China,2006,36(9):23-25. |
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| Authors: | YANG Shu-ling LI Yan-bin |
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| Affiliation: | The 54th Research Institute of CETC, Shijiazhuang Hebei 050081, China |
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| Abstract: | On the basis of modern spectrum estimation, AR model is constructed according to Yule-Walker equation, from which the information of carrier frequency is extracted. Signal power distribution is expressed by PSD. Estimated by spectrum analysis, the frequency can be further modified according to PSD, so measurement precision of carrier frequency is improved. |
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| Keywords: | AR model Yule_Walker equation FPE rule |
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