Description: 局部放电试验所采集的信号中往往混有白噪声、周期干扰信号去除。此处采用常用db系列小波中的db6小波进行9尺度的多分辨分解后，根据白噪声能量特性，估算各尺度的阈值大小，采用硬值进行处理，后进行重构。-Partial discharge test of the signal collected is often mixed with white noise, periodic interference signal removal. Here the use of commonly used wavelet db Series DB6 wavelet carried out in the 9-scale multiresolution decomposition, based on the energy characteristics of white noise to estimate the scale threshold size, the use of hard-value deal, after the remodeling. Platform: |
Size: 33792 |
Author:rex |
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Description: 在综合描述声发射信号特点和小波殳换基本原理的基础上，结合实例介绍同时在时域
和频域具有局部分析能力的信号处理方法--小波变换在声发射信号的特征提取、时频分析和噪声去除等方面的应用。-Described in the integrated acoustic emission signal characteristics and the basic principles of wavelet Shu-for on the basis of the introduction with an example in the time domain and frequency domain with the capacity of local analysis of wavelet transform signal processing method of acoustic emission signals in the feature extraction, time-frequency analysis and noise Removal of such applications. Platform: |
Size: 230400 |
Author:康康 |
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Description: 仿真信号，添加白噪声，再用小波去除。斑竹看看，有什么问题没^_^我信号处理不行 lO*/qUo7
这个程序也在MIT提供的信号上进行了验证。-Simulation signal, add the white noise, and then wavelet removal. Chiloscyllium see what the problem did not ^ _ ^ I will not do signal processing lO*/q Uo7 This process also signals provided by the MIT verified. Platform: |
Size: 784384 |
Author:宇航 |
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Description: Abstract— with the latest advancements in electronics,
several techniques are used for removal of unwanted entities
from signals especially that are implied in the most
sophisticated applications. The removal of power line
interference from most sensitive medical monitoring
equipments can also be removed by implementing various
useful techniques. The power line interference (50/60 Hz) is
the main source of noise in most of bio-electric signals. The
report presents the removal of power line interference,
baseline wandering and additive white Gaussian noise
(AWGN) from ECG signal using the different types of
filtering technique. The project is based on digital signal
processing (DSP) techniques with MATLAB package, the
IIR Notch filter can be used for removal of power line
interference, Median can be used for Baseline wandering
noise and Discrete Wavelet Transform can be used for
removal of AWGN. Platform: |
Size: 654336 |
Author:muthupandy |
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Search - WAVELET NOISE REMOVAL SIGNALS