In {TAIL ~ the method}, {HEAD ~ the detector} detects an output signal of the supply modulator 
In { TAIL ~ the method } , { HEAD ~ the detector } detects an output signal of the supply modulator
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH