The device 12, wherein the at least one of {TAIL ~ an integration interval} and {HEAD ~ the number} of coherent passes are derived from a look up table 
The device 12 , wherein the at least one of { TAIL ~ an integration interval } and { HEAD ~ the number } of coherent passes are derived from a look up table
OTH OTH OTH OTH OTH 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