机车安全控制系统中的语音记录与分析

ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI:10.1109/ITSC.2001.948736

Z. Lu, Taiyi Zhang

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引用次数: 1

摘要

机车安全控制系统是铁路运输的重要组成部分。语音数据的压缩、存储和分析已显示出其巨大的实用性。从混合噪声中恢复语音，采用数字滤波去噪和时频联合提取的方法是有效的。重构后的信号不仅信噪比得到了很大的提高，而且对一些严重模糊语音信号的随机噪声的大部分分量也能被去除。在大多数情况下，清晰的声音保证有助于分析。

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Voice recording and analysis in locomotive safety controlling system

Locomotive safety controlling system is very important in railway transportation. Compression, storage and analysis of voice data has shown its great usefulness. For voice restoration from mixed noise, digital filter denoising and joint time-frequency extraction is effective. Not only the SNR of the reconstructed signal improved greatly, most components of some random noise severely blurred voice signal can be removed as well. Clear voice is guaranteed to help the analysis in most cases.

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ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)

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