{HEAD ~ A first set} of narrowband signals may be recovered from {TAIL ~ the plurality} of sampled signals 
recovered from
{ HEAD ~ A first set } of narrowband signals may be recovered from { TAIL ~ the plurality } of sampled signals
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH