熵功率

新的基于统计熵功率的OCR算法及其DMCU实现

Novel algorithm and its realization of optical character recognition based on statistical entropy power

在频域上，使用Burg算法得到的最大熵功率谱密度估计，可以得到心肌速度的频域特征。

In frequency domain , we obtained myocardial frequency characteristics by calculating its power spectrum density .

汽液两相螺杆膨胀机的定熵膨胀功率特性

The Power Characteristics of a Two-phase Helical Screw Expander During Its Isentropic Expansion

该部分研究了几种经典的端点检测方法，如：短时能量、平均过零率、双门限检测、频谱熵、功率谱熵还有频带方差方法，相关实验仿真均反映其各自算法特点。

Some classic endpoint detection methods are discussed here , such as : short-time energy , average zero-crossing rate , double-threshold detection , spectral entropy , power spectral entropy and spectrum variance .

对比研究自功率谱熵和功率谱熵在损伤识别方面的异同点，通过实验研究论证本文提出方法的优势。

When applied to damage identification , the similarities and differences between auto-power spectrum entropy and power spectrum entropy are comparatively studied ; the advantage of proposed method is demonstrated by experimental research .

首先对脑电信号进行预处理；然后利用小波熵，功率谱及双谱，相关维数分析脑电信号的复杂性；总结脑电信号复杂性的规律。

Firstly , we should preprocess EEG . Then wavelet entropy , power spectrum , bispectrum and correlation dimension were used to analytical study the EEG signal . Finally , we summed up the complexity rule of the EEG .

最大熵与互功率谱相位法就是首先求出组分波的波至点。

The arrival of components must been picked for the method of maximum entropy and cross power spectrum phase .

本文使用渤海石油平台观测的超声波风速脉动资料，计算了强风条件下二维风速和风向的最大熵谱和傅立叶功率谱。

Using the data set of the wind fluctuation measured by the ultrasonic anemometer on the oil platform in the Bohai Sea , the spectra of 2-dimension wind velocity and wind direction were calculated .

在去噪基础上，对睡眠脑电信号进行了详细的小波熵、近似熵、功率谱熵特性分析和复杂性测度分析。

Further , wavelet entropy , approximate entropy , power spectral entropy and complexity measures are calculated .