a first multiplier coupled to said first signal and a first local reference signal and having as an output a third signal, said first local reference signal differing in phase and small amounts of frequency over {TAIL ~ periods} of {HEAD ~ time} from a carrier in said spread spectrum signal, 
a first multiplier coupled to said first signal and a first local reference signal and having as an output a third signal , said first local reference signal differing in phase and small amounts of frequency over { TAIL ~ periods } of { HEAD ~ time } from a carrier in said spread spectrum signal ,
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 OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH