Further, in {HEAD ~ accordance} with one or more embodiments of the present invention, it is important to have only one channel as the absolute reference for {TAIL ~ 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 one or more embodiments of the present invention , it is important to have only one channel as the absolute reference for { TAIL ~ 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
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