Further, in {HEAD ~ accordance} with {TAIL ~ one or more embodiments} of the present invention, it is important to have only one channel as the absolute reference for each acquisition module, and thus employ three relative references for the other three channels used in an exemplary embodiment of the invention based on the first channel 
Further , in { HEAD ~ accordance } with { TAIL ~ one or more embodiments } of the present invention , it is important to have only one channel as the absolute reference for each acquisition module , and thus employ three relative references for the other three channels used in an exemplary embodiment of the invention based on the first channel
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH