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signal_denoise_based_wavelet
一个基于小波阈值的信号处理程序,通过自适应阈值方式抑制信号噪声(A threshold based on wavelet signal processing procedures, through the adaptive threshold signal noise suppression methods)
- 2008-12-23 21:23:01下载
- 积分:1
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Chirplet Transform
基于Wigner-Ville分布的Chirplet变换,用于信号的时频分析。
- 2022-03-16 22:20:40下载
- 积分:1
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wavetest0
morlet小波变换的周期性分析程序,分析长时间序列的周期性(morlet periodic wavelet analysis program, analysis of long time series of the periodic)
- 2011-07-29 09:47:00下载
- 积分:1
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wnn
说明: 这是一个用小波神经网络进行非线性函数逼近的例子,拟合效果非常好,保证能运行!有详细注释!我是参考《青岛海洋大学学报》 2001年第1期 一种基于BP算法学习的小波神经网络编写的,大家可以针对原文更好的理解我的程序!(This is a wavelet neural network with nonlinear function approximation example of fitting results is very good, guaranteed to run! Detailed Notes! I refer to Journal of Ocean University of Qingdao,2001 ,“a learning algorithm based on BP wavelet neural network ”, you will understand me better for program!)
- 2010-03-18 22:13:54下载
- 积分:1
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Matlab 梳状滤波器程序
心电图(ECG)是临床上诊断心血管疾病的重要方法。
数字滤波作为数字信号处理技术的重要组成部分,广泛应用于诸如信号分离、恢复、整形等多种场合中。为了使信号不失真及在可编程逻辑器件中容易实现,采用具有严格线性相位特性的FIR滤波器进行低通滤波(0-150Hz),用整系数梳状滤波器来去工频干扰及基线漂移,从而达到对心电信号进行预处理的目的。(Electrocardiogram (ECG) is an important method for clinical diagnosis of cardiovascular diseases.
As an important part of digital signal processing technology, digital filtering is widely applied to many occasions, such as signal separation, recovery, shaping and so on. In order to make the signal undistorted and easy to be realized in programmable logic device, the FIR filter with strict linear phase characteristics is used for low pass filtering (0-150Hz), and the entire coefficient comb filter is used to get the interference of the power frequency and the baseline drift, thus the purpose of preprocessing the ECG signal is achieved.)
- 2018-04-06 19:05:57下载
- 积分:1
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3900001
本文研究的是利用奇异性指数实现对设备状态监视和故障预警功能。首先用LabVIEW 采集传感器电信号,然后对采集到的电信
号进行小波变换得到信号包络奇异点的奇异性指数,即设备运行状态的特征值(In this research project, we use LabVIEW to do wavelet-transformation to the signal collected by sensors in order to get singularity
index from the singular points of the particular signal’s envelope. Through comparing this eigenvalue to the figures in a standard database, we can
know the functional status of the instruments. Not only the diagnoses are continuously displayed, but alarms about signs of dysfunction will also be
raised in a proper way. In other words, both the supervision of the instrument and warning of dysfunction can be achieved)
- 2012-01-31 16:35:56下载
- 积分:1
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Wavelet-signal-
小波信号分解与重构的Matlab程序,程序里边涉及卷积的直接调用的Matlab的conv()函数。(Wavelet signal decomposition and reconstruction in Matlab,Program inside invoked directly related to the convolution of Matlab conv () function.)
- 2011-11-04 21:32:13下载
- 积分:1
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FractionalCalculusandWavelettansforms
该文讲解了分数阶微积分和小波变换之间的关系,很不错的论文(The article explained the fractional calculus and the relationship between the wavelet transform, a very good paper)
- 2010-12-19 20:22:35下载
- 积分:1
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Wav_Noise
语音信号去噪,在MATLAB开发环境下,对含噪声的语音信号进行小波变换,实现语音增强的功能。(The speech signal denoising, wavelet transform, the noisy speech signal in the MATLAB development environment,
Speech enhancement functions.)
- 2012-03-15 10:31:02下载
- 积分:1
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perform_atrou_transform
一种小波分解,用于多分辨率分解,在分解的过程中,同时给出各级的细节和概貌。(a trous wavelet decomposition)
- 2020-10-05 15:27:39下载
- 积分:1