Hi Obspy users,
I have a question about obspy.signal.invsim.evalresp
that returns the full transfer function from a RESP file (from dataless SEED files)
I compared the output transfer function with the output of evalresp software from Iris
The obspy’s transfer function appears to be the complex conjugate of the iris’ one (no effect on the amplitude but the phase is multiplied by -1).
There is a note on the obspy documentation for obspy.signal.invsim.pazToFreqResp
specifying that we need to conjugate the output frequency response to get the actual phase function.
Is this convention also true for obspy.signal.invsim.evalresp?
Does any one already observe this?