The system is designed to permit {HEAD ~ cross track correlations} of {TAIL ~ the reference map data} so that the missile can be guided along various, nonlinear flight paths 
The system is designed to permit { HEAD ~ cross track correlations } of { TAIL ~ the reference map data } so that the missile can be guided along various , nonlinear flight paths
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH