The excursion signal generator identifies {TAIL ~ a peak portion} of {HEAD ~ a signal} that exceeds a threshold and generates a corresponding excursion signal 
The excursion signal generator identifies { TAIL ~ a peak portion } of { HEAD ~ a signal } that exceeds a threshold and generates a corresponding excursion signal
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH