Abstract: In this paper, a practical and efficient approach is given to the nonlinear correction of terminal guidancesignal( NCTGS) fo r an ant iship missile. T his approach makes correction to radar-seeker signal efficiently by makingt he best use of SINS information, and meets real time and precision demanded by system by adjusting nodal pointnumber of filter, and incr eases the precision of terminal guidance. Simulation results for terminal guidance signal correction of supersonic antiship missiles have prov ed the validity of the approach.

Key words: antiship missile, terminal guidance, signal correction, nonlinear Gauss-Hermite filtering