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