...键字: 车辆通信;语音检测;谱熵;快速傅里叶变换[gap=995]Key words: vehicle communication; voice detection; spectral entropy; fast Fourier transform...
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Node dependent thresholding is proposed and a method based on spectral entropy is applied to estimate the node noise. This algorithm is valid on various noise conditions, especially on the color noise and non-stationary noise conditions.
采用结点阈值法 ,用基于谱熵的方法估计结点噪声 ,实验表明 ,该算法在多种噪声 ,尤其是有色噪声和非平稳噪声条件下均有较好的语音增强效果。
参考来源 - 基于阈值的小波域语音增强新算法·2,447,543篇论文数据，部分数据来源于NoteExpress
这一结果预示着血压波功率谱熵可作为心率波动的一种新的度量。
The results indicate that the power spectral entropy of blood pressure waveform in this study can be a new measurement of heart rate fluctuations.
基于语音正弦模型，采用能量谱熵和子谐波谐波比率方法进行语音分析。
Energy-spectrum entropy and subharmonic-harmonic rate methods were used to analyze speech based on speech sinusoidal model.
提出了基于DCT(离散余弦变换)增强和改进谱熵的语音端点检测方法。
In the paper, a speech endpoint detection method based on DCT (Discrete Cosine Transform) enhancement and improved spectral entropy is proposed.
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