| 噪声对贝叶斯频谱估计精度的影响 |
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| 引用本文： | 袁有臣,RoemerLouis,吴则举,陈俊东. 噪声对贝叶斯频谱估计精度的影响[J]. 青岛科技大学学报(自然科学版), 2004, 25(3): 279-282 |
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| 作者姓名： | 袁有臣 RoemerLouis 吴则举 陈俊东 |
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| 作者单位： | 青岛科技大学,信息与控制工程学院,山东,青岛,266042;青岛科技大学,信息与控制工程学院,山东,青岛,266042;美国路易斯安那理工大学,Ruston,LA,71272 |
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| 摘 要： | 研究了贝叶斯频谱估计的基本理论和基本方法 ,分别对无噪声和有噪声的简谐正弦信号进行了频谱估计。计算结果显示 :无噪声信号频率估计偏倚为零 ;当信号噪声系数S/N =1时 ,贝叶斯频率估计的偏倚与Jaynes的理论值一致
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| 关 键 词： | 贝叶斯频谱估计 偏倚 信号噪声系数 |
| 文章编号： | 1672-6987(2004)03-0279-04 |
| 修稿时间： | 2003-11-03 |
Influence of Noise on the Accuracy of Bayesian Spectrum Estimation |
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| YUAN You-chen ,Roemer Louis .,WU Ze-ju ,CHEN Jun-dong. Influence of Noise on the Accuracy of Bayesian Spectrum Estimation[J]. Journal of Qingdao University of Science and Technology:Natutral Science Edition, 2004, 25(3): 279-282 |
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| Authors: | YUAN You-chen Roemer Louis . WU Ze-ju CHEN Jun-dong |
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| Affiliation: | YUAN You-chen 1,Roemer Louis 1.2,WU Ze-ju 1,CHEN Jun-dong 1 |
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| Abstract: | This article discusses the rationale and principle of Bayesian spectrum analysis, and does some spectrum analysis about noiseless and noisy harmonic sine signal. The result of the calculation reveals that the estimated spectrum bias of the noiseless signal is zero, and when S/N=1, the bias of Bayesian frequency is consistent with the theoretical value of Jaynes. |
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| Keywords: | bayesian spectrum estimation bias signal-to-noise ratio |
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