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| 基于小波变换的相对信噪比在喉疾病检测中的意义 | |
| 引用本文： | 王修信,胡维平,梁冬冬,姚铁钧,许爱华,曾思恩.基于小波变换的相对信噪比在喉疾病检测中的意义[J].听力学及言语疾病杂志,2002,10(4):225-226. |
| 作者姓名： | 王修信 胡维平 梁冬冬 姚铁钧 许爱华 曾思恩 |
| 作者单位： | 1. 广西师范大学物理与电子科学系,桂林,541004 2. 桂林医学院附属医院病理科 3. 桂林医学院附属医院耳鼻咽喉科 |
| 基金项目： | 广西自然科学基金资助项目 (95 14 0 10 ) |
| 摘 要： | 目的：通过研究早期病理噪音的相对信噪比变化，寻找检测早期喉疾病的方法。方法：应用小波变换对早期病理噪音信号进行多重分解，提取和放大频谱的高端噪声。结果：病态噪音和正常噪音的频谱高端相对信噪比存在显著差异。结论：基于小波变换的相对信噪比较易检测出高频段噪音异常。 |
| 关 键 词： | 喉疾病 嗓音分析 小波变换 相对信噪比 诊断 |
| 文章编号： | 1006-7299(2002)04-0225-02 |
| 修稿时间： | 2001年11月6日 |
Detection of Laryngeal Diseases With Relative Signal-to-noise Ratio Through Wa velet Transform |
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| Wang Xiuxin,Hu Weiping,Liang Dongdong,et al..Detection of Laryngeal Diseases With Relative Signal-to-noise Ratio Through Wa velet Transform[J].Journal of Audiology and Speech Pathology,2002,10(4):225-226. | |
| Authors: | Wang Xiuxin Hu Weiping Liang Dongdong |
| Abstract: | Objective To detect laryngeal diseases early by studying the relative signal-to-noise ratio changes in the early pathologic voice. Methods The noise on high frequency domain was obtained and magnified after the pathologic voice signal was decomposed on multiple levels by means of the wavelet transform. Results The relative signal-to-noise ratio of the pathologic voice on high frequency differed significantly from that of the normal voice.Conclusion The pathologic voice on high frequency domain can be detected easily with the relative signal-to-noise ratio through wavelet transform. |
| Keywords: | Voice analysis Wavelet transform Relative signal-to-noise ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |