Real-time threat evaluation in a ground based air defence environment

In a military environment a ground based air defence operator is required to evaluate the tactical situation in real-time and protect Defended Assets (DAs) on the ground against aerial threats by assigning available Weapon Systems (WSs) to engage enemy aircraft. Since this aerial environment requires rapid operational planning and decision making in stress situations, the associated responsibilities are typically divided between a number of operators and computerized systems that aid these operators during the decision making processes. One such Decision Support System (DSS), a threat evaluation and weapon assignment system, assigns threat values to aircraft (with respect to DAs) in real-time and uses these values to propose possible engagements of observed enemy aircraft by anti-aircraft WSs. In this paper a design of the threat evaluation part of such a DSS is put forward. The design follows the structured approach suggested in Roux & van Vuuren (2007) phasing in a suite of increasingly complex qualitative and quantitative model components as more (reliable) data become available.