基本解释：声谱学
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Method Four characteristic extraction methods, the conventional method of spectrogram parameters, the zero pole model, the fractal analysis method and the Teager energy method, were used to analyze Doppler signals from carotid blood flow.方法将超声多普勒信号的 4种特征提取方法 (传统的声谱参数法、音频信号的零极点模型法、分形特征分析法和Teager能量曲线法 )结合起来 ,用Fisher多元判别法进行颈动脉血流状况的多参数分类决策。
The research result shows that there are corresponding relationships between cutting sound spectrums and tool wear status,and that the sound derived from cutter is taken place with cutting simultaneously,which can be used to get monitoring informations for prevention from hazard and disorder in machining.实验结果表明,刀具切削声谱特征与其磨损情况之间具有对应关系,刀具磨损的工况信息与所产生的声信号具有同步效应,可以实时地获得监测信息,预先发现故障或危险。
Spectrogram analysis of vowel in patients with benign and malignant diseases of larynx;喉良恶性增生疾(bìng)嗓音的元音声谱图分析
Objective measure and analyse spectrogram s parameters of the sound samples from laryngopathy in laryngologic clinic.目的应用声谱图对喉科临床嗓音疾(bìng)进行检测和分析,探讨声谱图在喉科及嗓音方面应用的规律。
The spectrogram envelop of Doppler ultrasound blood flow signals from which spectrogram parameters can be estimated is important to clinical diagnosis of cardiovascular diseases.超声多普勒血流信号声谱图包络是声谱参数提取的基础,能为临床心血管疾(bìng)的诊断提供重要信息。
The sonogram modulated in Z axis by the fractal and the extraction of its envelope;分数维调制Z轴的声谱图及其包络的提取
Therefore, we can identify the joint sounds according to the energy, frequency, amplitude and occurring time of the vibration on the joint sound sonogram.根据关节音的声谱图特征,从关节音振动能量、频率、振幅、发生时间等方面对关节音进行鉴别,可能有助于判断颞下颌关节的功能状况。
