Developments in Modelling the Use of Infrared Offboard Countermeasures in an Infrared Anti-Ship Missile Scenario.
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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This work deals with the evolution of a FORTRAN simulation written by Naval Research Laboratory which is used to evaluate the effectiveness of deploying ship launched infrared decoys to counter the anti-ship infrared seeking missile threat. Although the model referred to as the Stochastic Infrared Engagement Model - SIREM possesses extensive analytical capability and flexibility, refinements are desired to more accurately emulate atmospheric effects on the acquisition process. In this thesis, methods are derived to calculate atmopsheric transmittance as a function of range using an accurate, LOWTRAN-based empirical formula. Basic seeker discrimination techniques are addressed which may be incorporated into SIREM to other simulations for future missile-versus-decoy evaluations and some ideas are presented which may prove valuable in decoy enhancement to subjugate the discriminating seeker. Keywords Offboard countermeasures Infrared seekers Infrared countermeasures Computer coding Atmospheric transmittance.
- Optical Countermeasures
- Infrared Detection and Detectors