how to create bands based on frequency in matlab ?
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I have to create bands based on frequencies. i.e from 0-4Khz one band and the other from 4-8khz. depending on the band i have to cal. the further process.can some one help me on this please
3 Comments
Carlos
on 18 Feb 2013
I agree Walter, it seems he wants to filter. Gokul, you should use a low pass filter for the 0-4Khz band, and a bandpass filter for the 4-8khz band. You can have a look to Matlab´s digital signal design documentation.
Accepted Answer
Walter Roberson
on 18 Feb 2013
I would not necessarily bother with figuring out what the frequency of any group of samples is. I would instead just run it through a 0-4 kHz low-pass filter, and then determine whether the power of the resulting signal matched some threshold, and if so then pass on the signal (either the original signal or the filtered signal as appropriate for the situation.)
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