classification of signls using Matlab
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which characteristic features can i use to classify between signals of different shapes. I have signals of different shapes: some looks more like sinusoidal, and some looks like triangular signals, which mathematical parameter could be best used to describe the shape of the signal ?? my signals all are sample at the same frequency which is 30 Hz.
what is the best parameters, which could be calculated to describe the shape of the signal ?!??
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Image Analyst
on 2 Aug 2014
Depends on what you want to characterize it. Maybe the mean will do what you need. Maybe you need the mean and the standard deviation. Maybe you need several moments. Who knows how many numbers you need to describe the signal. In the end, all the elements of the signal describe it perfectly, accurately, and exactly. Maybe you want the spectrum by taking the fft. It really depends on what you want to do and why you want to do this.
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