A scaling device amplifies the radiant energy signal levels of the input array and the digital array so that {HEAD ~ the radiant energy signal level} carried by the digital array corresponds to {TAIL ~ the threshold level} 
corresponds to
A scaling device amplifies the radiant energy signal levels of the input array and the digital array so that { HEAD ~ the radiant energy signal level } carried by the digital array corresponds to { TAIL ~ the threshold level }
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 HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL