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改进的小波变换算法
- 改进的小波变换C源码
对轴承故障振动信号的matlab小波分析程序
- 对轴承故障振动信号的matlab小波分析程序,能完成对故障特征频率的提取,Of bearing fault vibration signals matlab wavelet analysis procedures, can finish on the fault characteristic frequency extraction
对白噪音信号进行基于小波变换尺度为n的分解
- 对白噪音信号进行基于小波变换尺度为n的分解
小波降噪Matlab
- 设定信噪比和随机数种子,使用确定阈值、软阈值由一维小波函数对信号实施降噪。
小波变换
- 集关于小波分析的matlab程序) 小波滤波器构造和消噪程序 小波谱分析mallat算法经典程序 小波包变换分析信号的MATLAB程序 利用小波变换实现对电能质量检测的算法实现 基于小波变换的图象去噪 Normalshrink算法
小波降噪与EMD混合
- 一种进行小波降噪后,对特征库的信号进行信号经验模态分解的例子(An example of signal empirical mode decomposition for signal of characteristic library after wavelet de-noising)
语音信号处理
- 采用MATLAB 2015b综合运用各种函数调用等来实现语音信号时域的短时能量,短时过零以及短时自相关函数分析和频域的傅里叶变换,功率谱估计,短时傅里叶变换,小波分析,语音信号的短时综合,语谱图各种分析,充分了解熟悉语音信号的相关分析方法。(This experiment uses the MATLAB 2015 b, the integrated use of various kinds of function call to realize speech signal in time dom
小波变换
- 小波变换 信号处理 通过伸缩平移运算对信号(函数)逐步进行多尺度细化,最终达到高频处时间细分,低频处频率细分,能自动适应时频信号分析的要求,从而可聚焦到信号的任意细节。(Wavelet transform signal processing through the telescopic translation operations to signal (function) step by step multi scale refinement, the final breakdown of ti
基于小波包提取轴承故障
- 基于小波包变换对信号进行分解,提取机器轴承故障的特征信号进行损伤识别,(The signal is decomposed based on wavelet packet transform, and the characteristic signals of machine bearing faults are extracted to identify the damage,)
齿轮箱信号处理
- 齿轮箱信号分析处理,去噪处理,小波分析,功率谱分析(Gearbox signal analysis and processing, denoising, wavelet analysis, power spectrum analysis)
[muchong.com]小波分析去噪的Matlab程序
- 在故障诊断的信号处理之中,小波去噪是一种常用方法,此处上传为小波分析去噪程序。(Wavelet transform is a very good method in defect such as bearing, gearbox. This is the program of wavelet transform.)
HHT小波变换
- 用于脑电信号的小波分解与重构算法,另外还有一个基于信噪比的空域滤波算法和HHT分解算法,都是几个常用的脑电信号分解算法(Wavelet decomposition and reconstruction algorithm for EEG signals, in addition, a spatial filtering algorithm based on signal to noise ratio (SNR) and HHT decomposition algorithm, are sever
5.4 小波分解法
- 利用小波分解的方法进行语音信号的降噪处理,适用于语音增强领域(The wavelet decomposition method is used to denoise the speech signal, which is suitable for the field of speech enhancement.)
Response_function
- 利用小信号近似方法对单量子阱激光器的响应函数进行的仿真(Simulation of the response function of a single quantum well laser by small signal approximation)
双树复小波变换源码参考
- 完成一维信号小波去噪,并比较不同阈值的去噪效果(Complete one dimensional signal wavelet de-noising)
同步挤压小波
- 小波变换中的同步挤压小波程序。支持GUI界面交互,也可独立运行,易改造,易结合。(The synchronous extrusion wavelet program in the wavelet transform. Support GUI interface interaction, also can run independently, easy to transform, easy to combine.)
小波熵程序
- 小波熵程序,包含了小波检测信号部分及熵部分
VB信号处理
- 实现tdms文件的信号读取和多分辨率小波分析,并将均值提取到excle文件中(Realization of wavelet analysis)
新的小波去噪程序
- 通过分析硬阈值函数的数学特性,并考察其对电能质量扰动信号的去噪过程可知, 该算法仅简单的对小波系数进行剔除与保留,在抑制噪声的同时也容易将突变点去除, 最终导致扰动定位失效,不利于分析电网故障的类型以及发生的起止时刻。(By analyzing the mathematical characteristics of the hard threshold function and investigating its denoising process to the power quality
小波信息熵
- 对信号进行小波变换,确定小波基的选择和分解层数,再求解信号的信息熵,可用于故障诊断。(The wavelet transform is performed on the signal to determine the selection and decomposition layers of the wavelet base, and then the information entropy of the signal is solved, which can be used for fault