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Smita chopade


Active since 2016

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wavelet decomposition of signal
I have signal with 1000 samples in it. When I apply DWT to it I get 502 coefficients. Further applying DWT gives 253 coefficient...

8 years ago | 1 answer | 0

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How to remove unwanted peak in power spectrum
For fault analysis I am applying power spectrum analysis. In that I found initially shaft frequency and its harmonics. After tha...

8 years ago | 0 answers | 0

0

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Question


storing fft plot by some variable
nfft=1000; q= fftshift(fft(x,nfft)); n=length(q); fs=2560; fvals=fs*(-nfft/2:nfft/2-1)/nfft; figure, plot(abs(fvals), abs(q...

8 years ago | 0 answers | 0

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Question


How can i use pca as a filter
I am using PCA as filter. But as data should be obtained with maximum principle component having 90% contribution. But in my cod...

8 years ago | 1 answer | 0

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