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try plotting abs(fft(signal))... you will get the frequency spectrum of the signal...
this will clearly show you the side bands , carrier frequency... etc...
Please i want some help in using fdatool in matlab. I designed my filter but don't know how to apply it to my signal.
I do export the filter as an object or to workspace or as an SOS matrix, or even as an m-file. But i can't apply this filter to my original signal.
How can i get that.
Or if u suggest any other method for me to design a BPF and apply it to my signal.
I've really got confused.
Thanks in advance.
Its very simple, after you design the filter in FDAtool. Go to file ->export-> Export As- Coefficients -> enter the variable name , default is "Num". use this variable as coefficents of your filter and use it.
Sorry, now i have got coefficients of my filter, i.e (b & a) in the workspace.
It's a Cheby BPF, Which function should i better use to apply my filter:
filter, filter2, .... ,or what.
Thanks alot
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