How to Perform Peak Detection in MATLAB for Heart Murmur Detection?

[madiha1234]

i m designing a MATLAB code for detection of heart murmurs...
i applied segmentation using wavelet decomposition and reconstruction
now i m doing peak detection

can somebody help me how to do peak detection in matlab

 

[deepz18]

can somebody help me by giving tne MATLAB code for peakdetection of heart murmur ? I'm not asking about ECG. i have calculated my average shannon energy envelope and need to detect heart sounds s1 and s2 by peak detection. pls help me . its urgent

 

[imran5577]

Maam Madiha,

Can you please send me the code you have write in matlab, i urgently need that.

Thanks and Regards,
imran

 

[StrykerTECH]

Use PeakFinder:
http://www.mathworks.com/matlabcentral/fileexchange/25500

This is a function that I had good results with on a recent signal processing project.

 

[alphy]

There are several methods for peak detection in MATLAB, depending on the specific characteristics of your signal and the type of peaks you are trying to detect. Some common techniques include using the "findpeaks" function, which can detect local maxima in a signal, or using the "findpeaks" function in combination with the "smooth" function to filter out noise and improve peak detection accuracy. Additionally, you may want to consider using algorithms such as the "Savitzky-Golay" filter or the "Gaussian smoothing" method to smooth your signal before performing peak detection. It is also important to carefully choose appropriate parameters for your peak detection algorithm, such as the minimum peak height and minimum peak distance. You may also want to explore different peak detection techniques, such as peak fitting or template matching, to see which method works best for your specific application. Overall, peak detection in MATLAB can be a complex and iterative process, so it may be helpful to consult with a fellow scientist or MATLAB expert for additional guidance and troubleshooting.