Shooting Simulator «Inhibitor»: Target Layout Mathematical Support

Abstract

Mathematical support of target layout with pre-scaling during storage and mixing of target image boundaries is described when displaying on a shooting range for the optical-electronic shooting simulator 'Inhibitor' developed at Institute of mechanics UdmFRC UB RAS and at Computer Engineering department of Kalashnikov ISTU jointly with JSC «Kalashnikov» Concern». The tactical and technical task for the implementation of the target layout is given: support for all targets from the Shooting Course and realistic targets, the angular dimensions of objects on the screen must correspond to the real ranges to them, and the speed of visualization algorithms allows simultaneously displaying at least 32 targets with a frequency of at least 25 frames/s. When developing mathematical support, the BMP format for storing TrueColor images with the scale of 1 pixel = 1cm2 was chosen, scaling targets to speed up further processing and the obligatory mixing of object-background border colors when displaying fractional coordinate support with pixel fractions of greatly reduced targets on the screen (so a thoracic target 50 cm wide at a distance of 100 m should be 12.8 points wide, while at a distance of 600 m - 2.13 points only) was emphasizes. The carried out studies of mathematical support performance for the target layout images formation confirmed compliance with the tactical and technical task requirements and recommended a pre-scaling factor of 0.5 (1:2) for optimal «quality-performance» ratio. Based on the prospects for further research and development of electronic shooting simulators and due to the improvement of computing tools and the development of software graphics libraries, it is necessary to expand the eficiency of simulators and reduce costs, which means to increase competitiveness, for example, by increasing the target layout display realism.