| 基于多重自相关微弱正弦信号的检测 |
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| 引用本文： | 陈明奎,刘正平.基于多重自相关微弱正弦信号的检测[J].轻工机械,2006,24(3):112-115. |
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| 作者姓名： | 陈明奎 刘正平 |
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| 作者单位： | 华东交通大学机电工程学院,江西,南昌,330013 |
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| 摘 要： | 强噪音背景下检测出有用的正弦信号是信号检测中的一个典型问题。本文介绍的多重自相关法利用了正弦函数的特性,经过多重自相关运算,再对信号进行频谱分析,就能准确检测出湮没于强大噪声的微弱正弦信号,其中频率信息精确,幅值信息经过修正后也能达到一定精度。
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| 关 键 词： | 多重自相关 弱信号检测 |
| 文章编号： | 1005-2895(2006)03-0112-04 |
| 收稿时间： | 2005-11-24 |
| 修稿时间： | 2005年11月24 |
The Detection of Weak Sinusoidal Signal Based on Multi-layer Autocorrelation |
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| CHEN Ming-kui,LIU Zheng-ping.The Detection of Weak Sinusoidal Signal Based on Multi-layer Autocorrelation[J].Light Industry Machinery,2006,24(3):112-115. |
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| Authors: | CHEN Ming-kui LIU Zheng-ping |
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| Affiliation: | School of Mechanical Engineering,East China Jiaotong University,Nanehang 330013,China |
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| Abstract: | A typical problem in signal detection is to detect the needed sinusoidal signals in noise.In this paper,a method of multi-layer autocorrelation is introduced that can be applied to detect the weak signal flooded in powerful noise.The results of simulation show that it can obtain exact frequency value.The accurate amplitude value also can be obtained by mended. |
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| Keywords: | LabVIEW |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
