thangam

Actif depuis 2011

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how to find computation time for wavelet transforms (DWT, LWT, SWT)
i used the following command for calculation of computation time for the methods of DWT, LWT, SWT (comparison purpose). But, sup...

presque 14 ans il y a | 1 réponse | 0

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Question

Representation of S-Transform
how to represent s-transform for 1-D signal (harmonic signal) for analysis purpose. Thank you.

environ 14 ans il y a | 1 réponse | 0

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how do i calculate THD for m- file waveforms(waveforms in sampling) with and suppression of harmonics for comparison
% Sampling (harmonic injection) fs = 1600; % Sampling rate [Hz] Ts = 1/fs; % Sampling period [s] duration = 0.5; % Dura...

environ 14 ans il y a | 0

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discrete fourier transform
in the following program, it filters noises and if i use this same program for different signal without making difference in fde...

environ 14 ans il y a | 0

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discrete fourier transform
thanks for ur reply. you told to design filters for unwanted frequencies. but here i am having trouble in designing filter...

environ 14 ans il y a | 0

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discrete fourier transform
thanks for ur reply sir. Fs=1000; t=0:1/Fs:.3; x=cos(2*pi*t*200)+randn(size(t)); Hs=spectrum.periodogram; % U...

environ 14 ans il y a | 0

Question

IDWT
hi, in idwt, there was an error while y1=idwt(ca3+cd3); y2=idwt(y1+cd2); y3=idwt(y2+cd1); the error was *plus Ma...

environ 14 ans il y a | 1 réponse | 0

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réponse

Question

discrete fourier transform
hi everyone, i want to analyze the signal with disturbance using DFT and suppress those disturbance. so pls give me an idea t...

environ 14 ans il y a | 6 réponses | 0

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wavelte packet reconstruction
is there any procedure to modify those nodes sir

environ 14 ans il y a | 0

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wavelte packet reconstruction
just for example i gave that one sir. actually i am doing with wpt = wpdec(y,3,'db3'); sir

environ 14 ans il y a | 0

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wavelte packet reconstruction
thanks for ur help sir. so i used 3 level([c,l] = wavedec(x,3,'db1');) means then Is i have to change all the nodes of 7, ...

environ 14 ans il y a | 0

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wavelte packet reconstruction
thanks for ur kind reply sir. ya actually i tried wpdencoef and wpthcoef and i got some output. but i need to adjust each no...

environ 14 ans il y a | 0

Question

wavelte packet reconstruction
hi, actually i decomposed the signal with wpdec() and measured each node using wpcoef now i have to adjust those signals bef...

environ 14 ans il y a | 8 réponses | 0

8

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Question

how do i calculate THD for m- file waveforms(waveforms in sampling) with and suppression of harmonics for comparison
i am doing the project: *Analysis of harmonics using wavelet packet transform* Actually i am doing the project in *MATLAB co...

plus de 14 ans il y a | 2 réponses | 0

2

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