搜索资源列表
db4
- 1、 降噪步骤： （1） 一维信号的小波分解。选择一个小波并确定分解的层次，然后进行分解运算。 （2） 小波分解高频系数的阈值量化。对各个分解尺度下得高频系数选择阈值进行软阈值量化处理。 （3） 一维小波重构。根据小波分解的最底层低频系数和各高频系数进行一维小波重构。 matlab里面有关于去噪的函数，你可以找一下~~ 这说的只是基本原理，希望有所帮助-1, noise reduction steps: (1) on
Advanced-DSP-and-noise-reduction
- 高级数字信号处理与降噪!原理性文档,不适用.不要错过-Advanced digital signal processing and noise reduction
HeartRateQRS
- 心电图信号处理。该算法处理了将心电图信号进行降噪，小波变换后计算心率。-ECG signal processing. The algorithm of the ECG signal processing for noise reduction, wavelet transform is calculated heart rate.
errope
- 该例程以间隔学习算法进行语音信号的降噪处理，附有代码解释。-The routine at intervals learning algorithm for speech signal noise reduction, with code interpreter.
imcra_estimation
- 采用imcra方法估计语音信号中的噪声水平，可用于语音信号的降噪算法中。-estimate the noise in speech using imcra method
SVD-Denoise
- 对仿真信号进行特征值分解，进行奇异值降噪处理-SVD Denoise
Wavelet-Denoise
- 对仿真信号进行小波分解，进行小波阈值降噪处理-Wavelet Denoise
xiaobobaochengxu
- 小波包降噪、提取能量特征值，用于振动信号处理、故障诊断等。里面有经典的例子，供大家学习-Extract the energy eigenvalues for vibration, wavelet packet de-noising, signal processing, fault diagnosis. There are classic examples, for everyone to learn
chirp-Energy-Value-and-noise
- 有关chirp信号的加噪、降噪及能量值计算的问题-About the chirp signal noise, noise reduction and energy value problem
Kalman
- 仿真生成了两组角速率信号，一组平稳，一组带有阶跃。并利用标准Kalman滤波算法对其进行了降噪处理。-The simulation generates two angular rate signal, a group of stable, a group with a step. And using the standard Kalman filter algorithm was carried out noise reduction.
redundantdenoise
- 主要应用于信号处理过程中运用冗余提升小波实现降噪效果的定义函数-Mainly used in signal processing to enhance the use of redundant wavelet noise reduction effect of defined functions
EMD
- 要求同学在学习EMD基本理论的基础上，对一维信号进行各种降噪方法的研究，实现信号去噪。 -EMD based learning requires students in the basic theory of one-dimensional signal noise study various methods to achieve signal de-noising.
wave-denoise
- 程序利用小波分解将声音信号分解为高频与低频部分，而后利用软阈值方法确定高频与低频各自的小波重构系数，将高频与低频部分重构还原信号达到降噪的目的。-Program using wavelet decomposition sound signal into high and low parts, then use soft threshold method to determine the high and low frequency co
dual-tree
- 首先将非平稳的故障振动信号进行双树复小波包分解，得 到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量 进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实 现了故障特征信息的提取。-In view of the above situation, a new fault diagnosis method is proposed
xiaobojiangzao
- 该程序是小波降噪的程序，有原始信号，加噪信号，以及去噪后的效果-The program is the wavelet noise reduction procedures, the original signal, noise signal, and after the effect of de-noising
81147231xiaoboquzao
- 小波降噪的程序，运用小波对信号进行降噪处理-Application of wavelet noise reduction, for signal by wavelet noise reduction processing
yuyin
- 在labview环境下编写实现语音信号的采集播放加噪降噪和滤波功能-Under labview environment prepared to play the voice signals to achieve acquisition plus noise and noise reduction filtering
wavletDenoise
- 小波降噪，针对语音信号，包括小波变换的分解和重构- wavletDenoising for WAV voice,including wavlet decompress and recompress.
XIANG
- 对信号进行实验相关降噪处理，并使用小波进一步分析信号的成分，使信号故障更加清晰，自如-Experiments related to the noise reduction signal, and further analysis using wavelet component signal, so that a clearer signal failure, ease
SVD
- 对lorenz信号的（svd）奇异值分解降噪，- lorenz signal noise singular value decomposition