DC removal from IQ samples I am wondering what is the proper way to remove DC component from PSK modulated signals. Should I calculate mean value for I and Q channel separately and correct then samples in each of the channel or calculate one mean value for I and Q channel as one channel with interleaved samples (IQIQIQIQ) and then correct samples. What do you think?
&quot;What do you think&quot; is the wrong question here: It's not a matter of opinion. Your second approach is mathematically simply not calculating the mean of a series of complex numbers. The mean of a complex sequence is w.l.o.g. complex, the mean of your IQIQIQIQ is real, so it can't possibly be the mean/DC component.