These modulators cascaded with {HEAD ~ a bandpass digital filter} centered at {TAIL ~ the arbitrary center frequency} Fbp perform A/D conversion for high frequency, narrow band signals having the same arbitrary frequency 
These modulators cascaded with { HEAD ~ a bandpass digital filter } centered at { TAIL ~ the arbitrary center frequency } Fbp perform A / D conversion for high frequency , narrow band signals having the same arbitrary frequency
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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