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How do I generate a pulse train which starts at the origin using functions in the Signal Processing Toolbox 6.10 (R2008b) ? I am trying to generate a train of rectangular pulses. I…
Hello having the power spectral density data (like what we get from pwelch) is it possible to retrieve the original time history. I have obtained the spectrum using pwelch, have do…
For instance, if I was plotting Scope (x) and Temperature (y), why can't I use the following code: [pks,locs] = findpeaks(Temperature)? Matlab tells me that there is the followin…
I have noticed many posts regarding frequency spectrum and many answers to the same questions. How to normalize the values of FFT and PSD from a periodic signal? Most of us when…
Hi everyone, can amyone please help on the following : I have a folder contains mualiple matfiles C1,C2,C3,C4.....C20. 1- I want to load all these files using for loop . A…
Why do I receive an error when I use the SPECTROGRAM function if the length of the window is equal to the signal length in Signal Processing Toolbox 6.13 (R2010a)? I try to plot th…
Hi all, I'm trying to band pass filter (9Hz to 70Hz) an ECG signal which is sampled at 256 Hz using MATLAB's 'butter' followed by 'filter'. I'm using an order of 10, just bein…
Hi, I have the question below: Part 1: 1) I do not know what to design the filters to be, based on what? 2) I am not sure if I displayed the magnitude spectrum correctly. 3) how…
How would I find the first twelve local maximum (peak) values for y and the corresponding times (t) using a script? …
I've worked through a lot of examples, it is easy to create a plot for a phased-antenna array, one which is scanned to several angles using the plotResponse function. I'm sure it i…