07-16-2012 11:27 PM
I am new to DSP.
I have a simple application..
1) Convert an analog input (mostly in the form of sine wave with X frequency) into digital format
-- For this I am using XADC block of Artix-7 and I am able to see the binary equivalent values of
external voltage of analog input in simulation.
2) Apply filtering to restrict an interference from other frequencies.
3) Process the data
.. Can I use FIR filter for filtering?
.. Can I feed the binary data coming from XADC block directly to FIR filter input?
.. How does FIR filter knows that the current sample is from X frequency or Other??
(After adding FIR filter design and feeding the XADC output to FIR input, the FIR output data is
completely different from FIR input data)
.. Do I need to convert XADC output into something like "frequency domain" and then apply to FIR input