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