A system separates {TAIL ~ unknown signals} which have been combined together through unknown linear filters and for which {HEAD ~ observations} at multiple sensors are made 
for are made
A system separates { TAIL ~ unknown signals } which have been combined together through unknown linear filters and for which { HEAD ~ observations } at multiple sensors are made
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL