| 超微弱信号检测在声探测系统中的应用 |
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| 引用本文： | 石建飞,房帅. 超微弱信号检测在声探测系统中的应用[J]. 电声技术, 2012, 36(6): 37-40 |
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| 作者姓名： | 石建飞 房帅 |
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| 作者单位： | 中国电子科技集团公司第三研究所,北京,100015 |
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| 摘 要： | 为了提高超微弱信号的检测能力,对声探测系统的噪声来源和特性进行了分析。根据不同的噪声特性采取了匹配、滤波、频谱累积等抑制噪声的方法,提高了系统的信噪比和探测能力。试验结果表明采取的方法有效可行。
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| 关 键 词： | 超微弱信号 声探测 信噪比 滤波 |
Detection of Ultra - Weak Signals Applied in Acoustic Detection System |
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| SHI Jianfei , FANG Shuai. Detection of Ultra - Weak Signals Applied in Acoustic Detection System[J]. Audio Engineering, 2012, 36(6): 37-40 |
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| Authors: | SHI Jianfei FANG Shuai |
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| Affiliation: | (The Third Research Institute of China Electronics Technology Group Corporation,CETC, Beijing 100015 ,China) |
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| Abstract: | In order to enhance the ability of detection of ultra- weak signals, the sources and characteristics of noise are analyzed for acoustic detection system. The effective methods of restraining noise are noise matching,filtering,spectrum cu- mulation, which improve signal to noise ratio and enhance the ability of detection. The results show the availability and feasi- bility of the methods. |
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| Keywords: | ultra - weak signals acoustic detection signal to noise ratio filtering |
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