Ah, I'm working on such IQ gain and phase balancing right now and I would welcome some help with a good example on how to do this.
Can you point me some some code?
I"m sampling I/Q input, doing a integer or float FFT and then I need to do the automatic IQ imbalance compensation (either blind or using some known input signals) but the math is too complex for me and I can not find examples on how to do this