Inversion method of the key structure parameters of light screen array measurement system using genetic algorithm

Based on the solutions of an external ballistics task, tables are made for firearms and tables or computer control programs for heavy weapons. If you shoot in a mountainous area where the height difference between gunner and target can be about a hundred meters, defined skills for firing are necessary. We can make specific tables of firing with firearms in mountainous areas. Mortars are relatively simple and inexpensive weapons, and therefore their management has never been computerised. We have shown that this deficiency can be corrected. The programs described above calculate the required parameters very quickly.

External ballistics task modelling features

Anti-aircraft artillery (AAA) systems are effective defense countermeasures for close-in and low altitude air targets. For the interception of maneuvering target, deliberate increase of the ballistic dispersion can be rewarding. To this point, adaptive optimization method of ballistic dispersion is employed to a type of 37mm AAA system to enhance its effectiveness for intercepting cruise missile which is capable of making zigzag evading maneuver. The goal of adaptive optimization is to achieve the highest kill probability by automatically adjusting the ballistic dispersion according to the estimated maneuver range. The pattern search method, which needs no gradient information from the objective function, is chosen for searching the optimal solution. Simulation results reveal that adaptive ballistic dispersion can improve the kill probability by thirty percent for maneuvering target interception.

Adaptive optimization of ballistic dispersion for maneuvering target interception

An infantry attack over a specific terrain is modeled. A stochastic method described in our previous study is used. In this model, the position of each soldier during the attack is approximately defined by a square [10 × 10 m] on the battlefield. Making use of the possibilities inherent in a three‐dimensional digital map, a visibility matrix is made up, i. e. the indication whether the enemy sees the soldier in a specific case is given.

/pdf/the-simulation-of-an-infantry-attack-using-geographical-xrusiuxzpr.pdf

The simulation of an infantry attack using geographical information systems

Analysis on the kill probability of two Shooting Modes for fire control system of antiaircraft artillery

The algorithm of the stochastic model of combat is given in article. Random functions describing the basic processes of combat (movement of military personnel, detection of the enemy, firing and its results, etc.) are recorded. Corresponding mathematical expressions and numerical evaluations are given. Application of Geographical Information Systems (GIS) technologies and three-dimensional map in planning battle tactics are discussed.

/pdf/application-of-geographical-information-systems-in-modelling-1tyzm6cxrx.pdf

Application of geographical information systems in modelling of military operations

At present capabilities of Geographical Information Syste ms (GIS) are more and more widely used in planning military operations. The analysis a nd control of the movement of military means of transport, while applying the Arc View pro g am packet, was presented in the article by Kim and Park [1]. S. Crino [2] pointed out tha t force structures have to more frequently operate in urban areas. He in detail explo red all types of operations, from the point of view of essential operational aspects surv eyed and estimated current algorithms and models of operations, development of new str uctu es, their advantages and disadvantages. The overview of visualization strategies o f the virtual geographic terrain and their application in different areas of warfare practic e was presented in the study by Feibush et al. [3–9]. This article discusses the employment of modern informatio n technologies in planning and estimating the capabilities of a military unit to ex ecute a certain task. A system of “program tools”, created by using GIS information bases, makes it possible to carry out the engineer estimation of the terrain, obtain data on the ne twork of roads, water bodies, vegetation, building structures and qualities of the soil. A visibility instrument has been

/pdf/modeling-of-infantry-attacks-on-real-terrain-njkzbyo8lf.pdf

Modeling of Infantry Attacks on Real Terrain

Dynamic processes of the armored personnel carrier M113 are investigated in this paper. The model of the system is reduced to seven degrees of freedom (DOF). Six schemes of different integrations were investigated; it was determined that integration schemes with variable time steps allow to reduce calculation time within the applicable range of the calculation error. The weapon’s impact on the dynamic processes of the vehicle is investigated on the uneven terrain. The influence of the standard weaponry on the oscillation peculiarities of the M113 when the vehicle is standing still, moves on the uneven terrain is analyzed. Also, possibilities to use 30 mm cannon on the carrier M113 are examined.

/pdf/investigation-of-recoil-force-influence-on-dynamic-1f34abluji.pdf

Investigation of recoil force influence on dynamic parameters of carrier M113

A theoretical model describing the relaxation of charge carriers in semiconductors of high resistance under the influence of the laser pulses is presented. It is demonstrated that parameters of the trapping states relevant to the processes of the conductivity relaxation can be defined by fitting the experimental data. Time evolution of the conductivity of the GaAs bulk semiconductor under the influence of nanosecond and picosecond laser pulses is considered. Effect of two laser pulses, when the first one results in population of the trapping state and the second one induces its depopulation, is also considered.

Numerical simulation of the conductivity relaxation in the high resistivity semiconductor

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