Increasing threat-system performance together with enhanced sensorcoverage dictate an increased battlefield area. The performance ofthreat-systems in terms of speed and distance are considered to be ofmore importance than their geographical site. The conventional approachto situation assessment in decision support systems found much onlocation and geographical data. In this paper an unconventional way toattack the threat assessment problem in the time domain is proposed.This approach is based on hostile object or agent action possibilitiesdescribed as time intervals. The 3D spatial problem with threatlocations, sensor coverage, escape ranges and other tactical decisioncriteria can be transformed into a temporal representation, where timepoints and time intervals for hostile threatening actions arecalculated. The temporal representation of the problem then serve as abase for further processing, e.g. sensor management and temporaldisplays
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