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