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ECG using matlab - help with FFT

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amgc

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ECG using matlab

I got the samples of various arrhythmias and i took the fft of it using matlab.. Its found to be different... The dominent frequencies are found to be varying for various arrhythemia which i understood while plotting its abs value... Is it possible to extract those dominent frequencies??? that is frquency with max value...
 

Its easy. u should know the sampling rate of the signal. Then you can create a frequency vector like F=linspace(0,1,number of data points/2)*Nyqusit_limit . So find the index of the point in your FT with maximum value( which is your highest frequency) and look the value of F with the same index. So at last u will get the frequency value.
 

Re: ECG using matlab

amgc said:
I got the samples of various arrhythmias and i took the fft of it using matlab.. Its found to be different... The dominent frequencies are found to be varying for various arrhythemia which i understood while plotting its abs value... Is it possible to extract those dominent frequencies??? t is frquency with max value...
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how do u do ?
im glad to find thid site to improve my knowledg, i would be happy if u send ur function a bout fft to me thx alot:)
 

Re: ECG using matlab

The fft function help in matlab will help you. Its says all. You may also want to refer power spectral density.
 

thx a lot for ur help could u plz help me in my project?if i send it for u?i dont know how to simulate it in maatlab and i dont have enough time to do it by my self,its a bout ecg if u have time to help me id send it for u thx a lot.bless u
 

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