Re: time domain filter


yuval reuveni wrote:
Hello all,

I have a row data for broadband between 0-100 KHz, I need to know if
there is a way to do bandpass filter for one frequency in the time
domain?

The answer to you question exactly as stated, is no, you can not
make a bandpass filter that lets one frequency through.

You can, however, make a bandpass filter with an as narrow bandwidth
as you like. Matlab has some nice functions to make such filters
(Signal Processing Toolbox, Filter Design Toolbox). I would recommend
you read a little bit of signal processing before making the filters,
though. Try

Lyons: "Understanding Digital Signal Processing"
Prentice Hall, 2004.

Rune

.

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