As the military moves toward higher fidelity modeling for live and constructive training, they need more precise 3D models of target entities. This paper presents an approach for using 3D target models in a high fidelity end game methodology. ( End game in this paper refers to the end of an engagement; i.e., a munition impacting its target.) The methodology uses the models to determine if a player was hit in an engagement, and if so, where the impact occurred.

Military training and testing systems are one of many possible applications for this methodology. In future live training and testing domains, each player unit holds the 3D model of the target it represents. This allows the embedded unit to run the algorithm and advise the trainee if he/she was hit by an engagement and if so, approximately where. Using high fidelity models results in less false hits and false misses, avoiding negative training. Other applications of this strategy include sensor system evaluation and calculation of visual center of mass.

This paper will discuss the basics of the methodology including how 3D information is stored on the player unit, inputs required to calculate hit location, orienting the model for delivery, and the hit location calculation. We will present an implementation of the algorithm and strategies to optimize processing and memory usage.