This subtraction may be accomplished prior to {HEAD ~ receipt} of {TAIL ~ the wideband signal} by the sampling device, or alternatively, within the sampling device 
of
This subtraction may be accomplished prior to { HEAD ~ receipt } of { TAIL ~ the wideband signal } by the sampling device , or alternatively , within the sampling device
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH