搜索资源列表
dwt
- 小波对污染信号进行降噪处理,matlab程序文件-Wavelet Noise pollution signal processing, matlab program files
filter-deniose
- matlab下实现降噪,功率谱计算。%程序中设定采样点数为256个,采样频率为10000hz, %输入信号为随机噪声和两个正弦的合成信号 %设定的滤波器的截止频率为3500hz %通过挈比雪肤滤波器,运行程序,比较滤波前后的频域波形 %滤波去除了高频信号-matlab achieve noise reduction, power spectrum calculation. Sampling procedure set for 256 points, the sampling f
fuzzy
- 一份介绍小波变换的论文,包括突变点的检测以及信号降噪等。-Introduce a wavelet transform of papers, including the detection of point mutations, as well as signals such as noise reduction.
Main
- 小波阈值降噪的例程,可以选择多种原始信号及多种阈值方式。-Wavelet threshold noise reduction routine, you can choose a variety of the original signal and multi-threshold approach.
qiyizhifenjie
- 奇异值分解降噪技术,对各种信号进行处理,使用先进的MATLAB程序进行分解处理,达到理想的效果-SVD noise reduction on various signal processing, the use of advanced decomposition MATLAB processing procedures to achieve the desired results
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)
模极大值降噪算法
- 可以实现对心电信号中模极值点的提取,软硬阈值算法的对比实验,以及小波的多层次分解(It can extract the extreme point of the ECG signal)
WPsvdquzao
- 主要用于对含有噪声的信号进行降噪处理,先小波包降噪再奇异值降噪(It is mainly used to denoise the signal containing noise. First, the wavelet packet de-noising and then the singular value denoising)
谱减法
- 利用谱减法进行语音信号的降噪处理,适用于语音增强领域(Using spectral subtraction to reduce the noise of speech signal, it is suitable for the field of speech enhancement)
语音信号加噪和降噪处理
- 语音是人类交换信息的有效渠道之一,也是我们日常生活交流的主要形式。 语音与当今科学技术的快速发展息息相关,特别是计算机中的语音交互技术,通 过对语音信号进行采集和处理,实现人与人之间有效信息的传输、获取以及存储。 基于 MATALAB 的语音信号去噪设计,对噪声信号进行有效地滤除,将降噪后的语音信号与原始 信号在时域和频域进行对比分析,计算出信噪比,并在 MATLAB 中设计 GUI 仿 真界面进行展示.(Speech is one of the effective ways for human
nengliangshang
- 基于小波变换的信号降噪,可以用来进行数据处理后的小波降噪(Substitution Small - wave conversion signal damping, available For further use Number processing Opinion Small wave noise)
soft
- 针对提出的故障信号,利用awgn加噪,对其进行小波软硬阈值降噪,提出一种改进阈值,利用五种自适应阈值函数sqtwolog、rigrsure、heursure、minimaxi和ddencmp中阈值选取原则,对软阈值、硬阈值和改进阈值进行降噪效果对比。(In view of the proposed fault signal, the wavelet soft and hard threshold de-noising is carried out by AWGN adding noise, an
lmd
- LMD分解,通过局部均值分解重构信号,实现对信号的降噪效果(LMD the decomposition reconstructed signal by local means, to achieve the effect of noise on the signal)
emd
- emd分解,通过emd分解重构信号实现降噪(By the emd decomposition reconstruction signal noise reduction)
Denoisewp
- 运用小波包分解功能对含噪信号降噪,剔除干扰噪声,提高信号信噪比。(The function of wavelet packet decomposition is used to denoise the noisy signal, eliminate the interference noise and improve the signal-to-noise ratio.)
用于信号的EMD、EEMD、VMD分解
- 用于信号的分解、降噪和重构,实现故障诊断(Used for signal decomposition, noise reduction and reconstruction to realize fault diagnosis)
xiaobo
- 对故障数据的小波包分解与信号重构、小波包能量特征提取 暨 小波包分解后实现按频率大小分布重新排列,并进行降噪处理。(After wavelet packet decomposition and signal reconstruction, wavelet packet energy feature extraction and wavelet packet decomposition, the fault data can be rearranged according to the frequ
空域降噪
- 应用于信号降噪处理,突出特征信号,降低噪声信号,提高信噪比
信号降噪
- 本程序应用在轴承微弱早期故障信号处理中,可对信号进行降噪处理,并生成降噪波形图。