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A Low Fidelity Simulation To Examine The Design Space For An Expendable Active Decoy

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Technical Report

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Naval Postgraduate School Monterey United States

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A new type of expendable radar decoy, one that leverages the advances in technology of the last 50 years, is required to improve the survivability of non-stealth aircraft against radar-guided threats. This thesis applies modeling and simulation based systems engineering to explore the design space of a notional active expendable decoy to determine the combination of key performance parameters that will maximize probability of survival. The thesis focuses on development of a Microsoft Excel-based simulator, which accepts inputs from the user, uses a nearly orthogonal Latin hypercube experimental design, and performs multiple simulator runs with stochastic model variables. The final output includes statistical analysis of results to provide the user with the best combination of design variables to improve survivability against specified threat parameters. Results show that either low power with high gain, or high power with low gain, was the best combination for maximizing probability of survival. In addition, low altitude deployments are to be avoided unless the missile is very near the target aircraft. The results provided by the tool are notional, based on realistic approximations of radar, aircraft, and decoy systems. The results will inform the acquisition strategy of NAVAIR.

Subject Categories:

  • Radar Countermeasures

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