Description: 端点检测程序 多频带，熵 谱熵 teger能量
希望大家好好学习好好利用-endpoint detection procedures multiband, entropy spectral entropy teger energy hope that we learn to make good use Platform: |
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Author:陈小花 |
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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: 端点检测程序 多频带，熵 谱熵 teger能量
希望大家好好学习好好利用-endpoint detection procedures multiband, entropy spectral entropy teger energy hope that we learn to make good use Platform: |
Size: 4096 |
Author:陈小花 |
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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: 何振亚的现代谱估计.本书全面系统地论述了现代谱估计技术中的各种理论与方法。全书共九章，内容包括；纯连续谱沽计的AR与ARMA模型参量法、纯离散谱与混合谱估汁的正弦组合与阻尼复指数模型参量法、非参量法谱估计的最小方差法与奇异值/特征值分解处理法、应用信息论的墒谱估汁法、多谱(高阶谱)估计、二维潜估计与多维阵列谱估计。本书取材广泛，内容新颖，理论联系实际，系统性强。
-He Zhenya Modern spectral estimation. This book comprehensively and systematically discusses the modern spectral estimation techniques in a variety of theories and methods. Book a total of nine chapters, including pure continuous spectrum of sell ARMA model with AR parameter method, pure discrete spectrum and mixed spectrum estimation of sinusoidal juice combination of complex exponential model with the damping parameter method, non-parameter method of minimum variance spectral estimation method with the singular value/eigenvalue decomposition treatment method, the application of information theory the entropy spectrum estimation juice method, multi-spectral (HOS) estimates that two-dimensional latent estimation and multi-dimensional spectral estimation array. The book based on a wide range of content of a novel theory with practice, systemic strong. Platform: |
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Author:songzy41 |
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Description: MATLAB实现功率谱估计的程序最大熵谱法,Brug法和Levinson法。-MATLAB realize the power spectrum estimation procedure for maximum entropy spectral method, Brug law and Levinson Law. Platform: |
Size: 2048 |
Author:贺桀 |
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Description: MATLAB的程序最大熵谱法,Brug法和Levinson法MATLAB procedures maximum entropy spectrum, Brug law and the law Levinson-MATLAB procedure for maximum entropy spectral method, Brug law and Levinson Law MATLAB procedures maximum entropy spectrum, Brug law and the law Levinson Platform: |
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Author:walkinghill |
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Description: 基于倒谱，分形，和谱熵的语音端点检测程序，三个文件夹内对应三种程序-Cepstrum-based, fractal, and spectral entropy of speech endpoint detection procedures, the three folders corresponding to the three procedures Platform: |
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Author:zhaoqingtian |
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Description: 使用子带谱熵进行的端点检测，将谱熵分为几个子带，检测效果不错-The use of sub-band entropy of the endpoint detection, the spectral entropy is divided into several sub-band to detect the effect of good Platform: |
Size: 1024 |
Author:cao |
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Description: 基于小波包分解的语音去噪，根据熵谱概率密度函数估计阈值，去除实际环境噪声。-Based on wavelet packet decomposition of the voice de-noising, in accordance with spectral entropy probability density function estimated threshold, the actual removal of environmental noise. Platform: |
Size: 1024 |
Author:djf |
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Description: 利用最大值熵法和PSD函数法分别求信号的功率谱密度。-The use of maximum entropy method and the PSD function method for seeking signals in the respective power spectral density. Platform: |
Size: 3072 |
Author:chenjuntang |
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Description: 该程序是基于小波变换的熵谱，用来提取时间序列的周期成分。熵谱相对于小波谱来说在提取周期成分上有一定优势-The program is based on spectral entropy of wavelet transform to extract time series of the periodic component. Entropy is relative to the small spectral component in the extraction cycle, there are some advantages Platform: |
Size: 3072 |
Author:卢三 |
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Description: 用matlab计算一些基本的音频特征，基本的特征包括：特征统计、Energy Entropy Standard Deviation (std)、均值信息熵、过零率检测、频谱衰减-Using matlab calculate some basic audio features, the basic features include: Features and Statistics, Energy Entropy Standard Deviation (std), mean information entropy, zero-rate detection, spectral attenuation, etc. Platform: |
Size: 91136 |
Author:lym |
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Description: 这个是基于多带谱熵的能量语音检测，这种处理的效果很好，比传统的谱熵检测效果还明显！-This is based on multi-bands Entropy energy voice activity detection, such an approach worked well, than the traditional spectral entropy test the results were obvious! Platform: |
Size: 3072 |
Author:花剑 |
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Description: 计算香浓信息熵，方便快捷的matlab代码，可以简单直接调用-Calculated Shannon information entropy, convenient matlab code can be simple and direct calls Platform: |
Size: 1024 |
Author:wains |
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Search - Spectral entropy