I have a project where I am trying to implement a dual channel capture to work at low frequencies (say input frequency of ~20 KHz). This is to build a software radio system where I can digitize the downconverted I/Q channels from a higher frequency radio.
I thought using a high quality, independently sampled, 2 channel sound card may do the trick -- say the EMU 1212M sound card as seen here:
They claim up to 192KHz sampling rate, which would mean that the 20 KHz frequency sampled at Nyquist (40 KHz) would be fine - correct?
Anyway - the question is -- is this possible to do with Matlab? What kind of drivers/software/etc. should I make sure that is available?
Any other thoughts about getting a low-cost digitizer?
Thanks and best regards,