The error path controls a gain or {HEAD ~ a phase} of a second order intermodulation component in the path turning {TAIL ~ signal} based on the input signal, to generate an intermodulation compensation signal 
The error path controls a gain or { HEAD ~ a phase } of a second order intermodulation component in the path turning { TAIL ~ signal } based on the input signal , to generate an intermodulation compensation signal
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH