Shooting Simulator «Inhibitor»: Mathematical Supportof Fire Range and Shielding

Abstract

Mathematical support for constructing the relief of a shooting range from an image with support for the height and range of each point and taking into account the screening of targets by folds terrain for tactical optical-electronic simulator of the small arms 'Inhibitor' developed at Institute of mechanics UdmFRC UB RAS and at Computer facilities department of Kalashnikov ISTU jointly with JSC «Kalashnikov Concern» was described. The tactical and technical task for the functional capabilities of implementing the relief of the shooting range is given: hills, ravines, mountains at a distance of up to 2 km in the sector up to 60°, shielding targets with folds of the area. A relief model is proposed in the form of a bilinear interpolated matrix of heights with a pitch of 10 m, and an editor is developed that allows interactively specifying range boundaries and terrain height along the front on the image of the shooting range. Screening the visibility of targets by folds of the terrain is implemented using the central projection of all relief profiles for a single workplace of shooters, and for the implementation of trenches, a mechanism for the height of the target above the surface of the shooting range is proposed, which optimizes the 'quality-speed' ratio. Studies of the «projector-screen-observer» system showed the presence of factors of errors in the virtual shooting range, some of which are of a fundamental nature, and the rest can be compensated for by the regression model of the target point recorder and taking into account its cumulative error by reducing the tabular ballistic dispersion of simulated shots. Based on the prospects for further research and development of electronic shooting simulators and thanks to the improvement of computing tools and the development of software graphics libraries, it is necessary to expand the functionality of the simulators and reduce the cost, which means to increase competitiveness, for example, improving the realism of simulating the terrain of the shooting range with screening of targets by folds of the terrain.