In a binary system, the value Δe is generally arbitrary, but necessarily depends on the level of noise signals, i.e., a selected value of Δe that is too low may allow {HEAD ~ noise} to be detected as {TAIL ~ an edge} 
to be detected as
In a binary system , the value Δe is generally arbitrary , but necessarily depends on the level of noise signals , i.e. , a selected value of Δe that is too low may allow { HEAD ~ noise } to be detected as { TAIL ~ an edge }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL