Power line interference noise elimination method based on independent component analysis in wavelet domain for magnetotelluric signal

2017 ◽  
Vol 21 (5) ◽  
pp. 251-261 ◽  
Author(s):  
Xiaoling Cao ◽  
Liangjun Yan
Keyword(s):  
Independent Component Analysis ◽  
Component Analysis ◽  
Power Line ◽  
Independent Component ◽  
Wavelet Domain ◽  
Noise Elimination ◽  
Elimination Method ◽  
Interference Noise ◽  
Power Line Interference ◽  
Line Interference

Wavelet domain independent component analysis of fMRI data

NeuroImage ◽  
2000 ◽  
Vol 11 (5) ◽  
pp. S501 ◽  
Author(s):  
Shigeru Muraki ◽  
Kayako Matsuo ◽  
Toshiharu Nakai
Keyword(s):  
Independent Component Analysis ◽  
Component Analysis ◽  
Independent Component ◽  
Fmri Data ◽  
Wavelet Domain ◽  
Domain Independent

Noise Based Independent Component Analysis Model for Harmonic Current Estimation

2012 ◽  
Vol 433-440 ◽  
pp. 2551-2555
Author(s):  
P. Supriya ◽  
T.N. Padmanabhan Nambiar
Keyword(s):  
Independent Component Analysis ◽  
Component Analysis ◽  
Independent Component ◽  
Analysis Model ◽  
Noise Elimination ◽  
Interconnected Power System ◽  
Harmonic Currents ◽  
Current Estimation ◽  
Simulation Results ◽  
Random Fluctuations

In a deregulating environment, Independent Component Analysis (ICA) is used to estimate the harmonic currents of non linear loads as it does not require information about the topology of the network. However, analysis is done by ignoring the effect of various noises that creep into the measurement system. In the present work, the effect of environmental noise on a simple interconnected power system with five buses is taken up. The two algorithms namely Fast ICA (FICA) and Efficient Variant Fast ICA(EFICA) are used for the analysis. A fixed noise is added and it is eliminated using whitening technique The simulation results of both algorithms show that noise elimination by whitening technique is highly successful. However, EFICA gives better results than FICA when random fluctuations of load exist rather than when fixed variations exist.

Sign in / Sign up

Export Citation Format

Share Document