THAAD system loading capacity evaluation in anticipated tactical field environments

Theater missile defense (TMD) programs present many challenges. Among these is the requirement for sensors to achieve performance against scenarios composed of multiple target candidates and interceptors spatially and temporally offset, and representative of raids as might be encountered under anticipated field operational conditions. In the case of the THAAD system, multiple object track files for tactical ballistic missiles (TBMs) and dispatched interceptors must be handled and serviced simultaneously. Not only do numerous objects of various target classes require simultaneous processing, but each object transitions through a sequence of functions that include: search, detection, track initiation, object track, various levels of discrimination, maintenance track following discrimination, and kill assessment. Each function has differing requirements in terms of imposed radar and data processor (DP) loads driven. In addition, associated with each object and function required to achieve total system performance is a different priority level. This paper addresses use of the THAAD Project Office/Raytheon Company designed and developed Multi-Target Engagement Performance Evaluation Simulation (MTEPES) of the THAAD system, as well as the XonTech developed Integrated Radar Algorithm Simulator (IRAS) model, to evaluate mission load handling against multiple target scenarios, which tax the ability of the system to conduct effective search, track, discrimination, designation and intercept strategies. Candidate heavy loading mission scenarios are described and assessed