Arturi
Member level 2
Hello,
I am filtering a test signal (Tsig) with a FIR and then calculating the
RMS error against a reference signal (Ref).
The FIR adds a group delay to my test signal which needs to be compensated
before I can calculate the error.
For an FIR, I believe that delay compensation should be N/2, where N is
the number of taps, or filter order.
After looking carefully at the waveforms I see that I can still fine tune
the group delay compensation. Is there a way to mathematically find the
perfect group delay compensation required?
Can I use the correlation between Tsig and Ref to find out the best group
compensation? If yes, how?
cheers
I am filtering a test signal (Tsig) with a FIR and then calculating the
RMS error against a reference signal (Ref).
The FIR adds a group delay to my test signal which needs to be compensated
before I can calculate the error.
For an FIR, I believe that delay compensation should be N/2, where N is
the number of taps, or filter order.
After looking carefully at the waveforms I see that I can still fine tune
the group delay compensation. Is there a way to mathematically find the
perfect group delay compensation required?
Can I use the correlation between Tsig and Ref to find out the best group
compensation? If yes, how?
cheers
