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karthik raviprakash

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26 Apr 2006 Screenshot ECG simulation using MATLAB This code generates all possible forms of ECG signals with the parameters specified by the user. Author: karthik raviprakash ecg simulator, arrhythmias, matlab, waveforms, simulation 246 51
  • 4.05882
4.1 | 52 ratings
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30 Oct 2011 ECG simulation using MATLAB This code generates all possible forms of ECG signals with the parameters specified by the user. Author: karthik raviprakash Patil, Shreya

Hello, I am trying to use this simulation (qrs complex only) and trying to insert chaotic and random behavior into the signal. The chaotic and random behavior needs to be inputted in the time intervals between the pulses. I am trying to isolate and identify the time intervals in order insert the chaos and randomness. I have been having a lot of trouble identifying this region though. I have tried to use a for loop to create an array of indices where the ecg signal is equal to -0.5505 (which is where the time intervals are). I then tried to plot the ecg signal at those indices. After simulating the ecg signal qrs complex this is the code I used:
int=0:1:length(ecg);
c=100;

for i=1:length(ecg)
    for j=1:length(ecg)
        if(ecg(i)==-0.5505)
            int(j)=i;
        else
        end
    end
end
hold on
plot(ecg(int), 'r');

Using this I get int where each index has a value that's the same as the index. Therefore when I plot it I get the entire signal. I tried setting it to if (ecg(i)~=-.05505 and I got a line going through the entire signal at -.5505 but I only want the portions which aren't the qrs pusle. I have been working on this for a couple of days and I am very confused as to what I am doing wrong. Please offer any input.

07 Jul 2011 ECG simulation using MATLAB This code generates all possible forms of ECG signals with the parameters specified by the user. Author: karthik raviprakash Tarik, Muhammad

when i run this code in MATLAB,error appears as "
??? Undefined function or method 'q_wav' for input arguments of type 'double'."

12 Jun 2011 ECG simulation using MATLAB This code generates all possible forms of ECG signals with the parameters specified by the user. Author: karthik raviprakash and energy, University of petroleum

this is a very good project.

31 May 2011 ECG simulation using MATLAB This code generates all possible forms of ECG signals with the parameters specified by the user. Author: karthik raviprakash raju, raghu

The code is really good n simple.

25 Mar 2011 ECG simulation using MATLAB This code generates all possible forms of ECG signals with the parameters specified by the user. Author: karthik raviprakash Joe

ajay pawar, I would recommend using nonlinear spline filtering instead of standard linear filtering (hamming, rectangular). It's really useful for this kind of time-domain signals. We have used it extensivley while developing the TechPatient ecg simulator ( http://www.heinstruments.com ). Spline filtering can input a synthetic ecg waveform and output a realistic signal without compromising its final amplitude or timing.

Top Tags Applied by karthik
arrhythmias, ecg simulator, matlab, simulation, waveforms
Files Tagged by karthik
Updated   File Tags Downloads
(last 30 days)
Comments Rating
26 Apr 2006 Screenshot ECG simulation using MATLAB This code generates all possible forms of ECG signals with the parameters specified by the user. Author: karthik raviprakash ecg simulator, arrhythmias, matlab, waveforms, simulation 246 51
  • 4.05882
4.1 | 52 ratings

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