> Several of the MKID systems use I/Q inputs. There's no real trick, they > just go through PFB_FIR real blocks (one for each I and Q) and then into > the classic fft block as the real and imag parts of the input data.
Thanks, Glenn.. I was wondering if there were any special blocks used that we didn't typically think of. John > > On Fri, Nov 7, 2014 at 1:57 PM, John Ford <jf...@nrao.edu> wrote: > >> Hi all. Are there any example spectrometers or correlators that use I/Q >> sampling as opposed to the usual real-valued ADCs we generally use >> nowadays? It seems like some early designs used these. >> >> We need to build a design that uses an I/Q stream as input, and we'd >> like >> to get a jump start on it by starting with a working model. >> >> Thanks! >> >> John >> >> >> >> >
