Description: 提出了一种利用S函数实验结果表明：ICA可以将 脑电信号中包含的心电（ECG）、眼电（EOG）等多种干扰信号成功地分离出来-use of a S-function experimental results show : ICA EEG can be included in the heart (ECG), eyes (EOG) and other interference signal successfully separated Platform: |
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Author:周周 |
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Description: 功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。-Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe Platform: |
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Author: |
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Description: 针对时间序列的复杂性测试，实现近似熵算法，可以分析确定信号和随机信号-time series against the complexity of testing, achieving approximate entropy algorithm, can be analyzed to determine signal and random signals Platform: |
Size: 1024 |
Author:魏娜 |
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Description: 针对时间序列的复杂性测试，实现快速近似熵算法，可以分析确定信号和随机信号，速度打打提高-time series against the complexity of testing, rapid approximate entropy algorithm, can be analyzed to determine signal and random signals, improving speed of play Platform: |
Size: 1024 |
Author:魏娜 |
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Description: 一个近似熵的源代码，一个熵代码，主要运行环境：matlab.第一个主要用与生物信号的检测,主要用于生物医疗工程的信号处理方面。（由matlab高手编）-An approximate entropy of the source code, an entropy code, the main operating environment: matlab. The first major use with the bio-signal detection, mainly for biomedical signal processing aspects of the project. (From matlab master ed.) Platform: |
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Author:clw |
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Description: This function provides an ARMA spectral estimate which is maximum entropy satisfying correlation constraint (number of poles)and cepstrum
constrains (number of ceros)
The function requires 3 inputs: Input signal, Order of denonominator, Order of Numerator and the output variable are: numerator coeffients, denominator coeficients and square-root of input noise power.
ARMA_LAST function requires spa_corc.m file to compute the autocorrelation matrix Platform: |
Size: 2048 |
Author:joy |
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Description: 六个信号的小波时间熵进行比较，在同一图上画出六信号波形-Six wavelet entropy to compare the time in the same graph draw the six signal waveforms Platform: |
Size: 1024 |
Author:larry |
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Description: 用Matlab编写的功率谱估计，输入数据是100年太阳黑子活动记录，用周期图法、最大熵值估计（AR法及Burg法），画出信号功率谱进而算出太阳黑子活动周期。-Matlab prepared using power spectrum estimation, input data is 100-year record of sunspot activity, using periodogram method, the estimated value of maximum entropy (AR Law and Burg method), draw the signal power spectrum and then calculate the sunspot activity cycle. Platform: |
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Author:ldh |
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Description: 用Fourier变换求取信号的功率谱---周期图法
用Fourier变换求取信号的功率谱---分段周期图法
用Fourier变换求取信号的功率谱---welch方法
功率谱估计----多窗口法（multitaper method ,MTM法）
功率谱估计----最大熵法（maxmum entmpy method,MEM法）
功率谱估计----多信号分类法（multiple signal classification,music法）Fourier transform to strike a signal to the power spectrum - the cycle of plans
Fourier transform to strike a signal to the power spectrum - Sub-cycle Method
Fourier transform to strike a signal to the power spectrum --- welch method
Power spectrum estimated more than window ---- Law (multitaper method, MTM)
---- Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM)
---- More than the estimated power spectrum signal classification (multiple signal classification, music)-To strike a signal with Fourier transform power spectrum- periodogram to strike a signal with Fourier transform power spectrum- Sub-periodogram with Fourier transform power spectrum of the signal to strike-welch method of power spectrum estimation multi-window method (multitaper method, MTM method) Maximum entropy power spectrum estimation method (maxmum entmpy method, MEM law) power spectrum estimation multi-signal classification (multiple signal classification, music law) Fourier transform to strike a signal to the power spectrum- the cycle of plans Fourier transform to strike a signal to the power spectrum- Sub-cycle Method Fourier transform to strike a signal to the power spectrum- welch method Power spectrum estimated more than window Law (multitaper method, MTM) Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM ) More than the estimated power spectrum signal classification (multiple signal classification, music) Platform: |
Size: 2048 |
Author:walkinghill |
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Description: 基于MATLAB的近似熵程序,主要用与生物信号的检测,主要用于生物医疗工程的信号处理方面-matlab program for calculating approximate entropy in biomedical signal processing especially. Platform: |
Size: 1024 |
Author:阿春 |
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Description: 有关标量量化的lloyd-max方法及信噪比，信息熵，最小平方距离的度量方法-The scalar quantization of the lloyd-max method and signal to noise ratio, information entropy, least squares method of distance measurement Platform: |
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Author:zhaotao |
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Description: 语音信号处理中的的线性特征，能量熵的计算，这是第二能量熵的matlab代码，希望大家能够借鉴一下-Speech signal processing linear features, energy entropy calculation, which is the second energy entropy matlab code, I hope we can learn about Platform: |
Size: 1024 |
Author:沈勇 |
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Description: 结合小波变换和香农定理，介绍了小波时间熵算法，并引用于信号异常检测中-Wavelet transform and the Shannon theorem, introduced the wavelet time entropy algorithm, and applied Signal Anomaly Detection Platform: |
Size: 256000 |
Author:jayzilong |
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Description: 可以用来计算脑电信号肌电信号的样本熵，很好用-EEG can be used to calculate the entropy of a sample of EMG signal, that is great Platform: |
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Author: |
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Description: 用于计算离散信号的很不错的matlab样本熵程序-Very good for computing discrete signal matlab sample entropy program Platform: |
Size: 1024 |
Author:sci5 |
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Description: 利用matlab和ceemd进行编程求解简单的信息熵，根据求解的imf分量判断信号的情况(Using MATLAB and ceemd programming to solve simple information entropy, according to the IMF component to determine the situation of the signal) Platform: |
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Author:小小小书童
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