To remove the undesired periodic noise, it is sufficient to subtract an offset value from each real and imaginary {TAIL ~ part} of {HEAD ~ each complex transformation value} 
To remove the undesired periodic noise , it is sufficient to subtract an offset value from each real and imaginary { TAIL ~ part } of { HEAD ~ each complex transformation value }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD