Re: Frequency Selective IQ Correction

2021-03-15 Thread dd0vs
Hello, you may google for ROCKY sdr. It uses a frequency selective IQ correction to remove images (automatically). It is needed because of the fact that IQ imbalance is frequency dependend too. There are scientific papers available, but currently i have no link, because i searched some years ago a

Re: Frequency Selective IQ Correction

2021-03-15 Thread Jeff Long
It is delay(x) + fir_filter(conj(x)). The delay is probably to match that of the FIR filter. There isn't any further info about usage in the code base. On Mon, Mar 15, 2021 at 8:02 PM Elmore's wrote: > Does anyone have any information on the use of the subject block? > > There is no documentatio