Moscow State Technical University of Civil Aviation

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Aleshechkin A.M.,Moscow State Technical University of Civil Aviation | Erokhin V.V.,Moscow State Technical University of Civil Aviation
Gyroscopy and Navigation | Year: 2017

Algorithms optimizing the trajectory of dynamically controlled object based on integral and local criteria are synthesized. Observability measure is proposed as a decision optimization rule. It is shown that optimal trajectory control improves the accuracy of navigation solutions by INS/GNSS navigation system data using automatic dependent surveillance. © 2017, Pleiades Publishing, Ltd.


Samokhin A.,Moscow State Technical University of Civil Aviation
Differential Geometry and its Application | Year: 2017

Superposition of explicit (analytic) monotone non-increasing shock waves for the KdV-Burgers equation is studied. Initial profile chosen as a sum of two such shock waves gradually transforms into a single shock wave of a somewhat complex yet qualitatively predictable structure. The layered media consist of layers with both dispersion and dissipation and layers with dispersion but without dissipation. In the latter case the waves are described by the KdV equation, while in the former - by the Kdv-Burgers one. A soliton solution of the KdV equation meeting a layer with dissipation transforms somewhat similarly to a ray of light in air crossing semi-transparent plate. Both nonlinear superposition and the behavior of solitons are demonstrated in detail, modelled numerically and graphically presented. © 2017 Elsevier B.V.


Efremov A.V.,Moscow Aviation Institute | Tjaglik M.S.,Moscow Aviation Institute | Irgaleev I.H.,Moscow Aviation Institute | Tsipenko V.G.,Moscow State Technical University of Civil Aviation
MATEC Web of Conferences | Year: 2017

The synthesis of predictive display information and direct lift control system are considered for the path control tracking tasks (in particular landing task). The both solutions are based on pilot-vehicle system analysis and requirements to provide the highest accuracy and lowest pilot workload. The investigation was carried out for cases with and without time delay in aircraft dynamics. The efficiency of the both ways for the flying qualities improvement and their integration is tested by ground based simulation. © 2017 The Authors, published by EDP Sciences.


Malov A.N.,Mil Educ And Scientific Center Air Force Academy Named By Prof Ne Zhukovsky And Ya Gagarin | Vaichas A.A.,Moscow State Technical University of Civil Aviation | Novikova E.A.,Irkutsk State Medical University
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2017

The results of an experimental study of the laser radiation effect on the crystal's formation in the volume of biological fluids that are complex multi-component solutions have been discussing. Are investigated white and natural bile in vitro. The qualitative changes were observed. Thus, at the bottom of the cell in which bile is not exposed to the laser radiation, the crystals are formed. In the irradiated bile gallstone has a thin layer of a homogeneous viscous colloidal liquid with very small, visible in polarized light crystalline formations was got. Irradiated laser bile's gallstone was covered evenly white deposit without surface defect unlike gallstone in bile without radiation exposure. A possible mechanism to explain the laser radiation action on the mineral formation in biological fluids and also practical application of this effect have been suggesting too. © 2016 SPIE.


Ivanov V.B.,Irkutsk State University | Gefan G.D.,Irkutsk State University | Gorbachev O.A.,Moscow State Technical University of Civil Aviation
Journal of Atmospheric and Solar-Terrestrial Physics | Year: 2011

This article describes the construction of the GEMTEC global empirical model of the total electron content in the ionosphere, which is designed for satellite radio navigation. The model is based on the total electron content maps from GPS system measurements. Input data filtration and compression were performed through the natural orthogonal functions expansion method. The suggested model provides more accurate ionospheric delay for compensation of the propagation of radio signals in comparison to the standard model recommended by the interface control document of GPS systems. © 2011 Elsevier Ltd.


Samokhin A.,Moscow State Technical University of Civil Aviation
Journal of Geometry and Physics | Year: 2016

For the KdV-Burgers equation on a finite interval the development of a regular profile starting from a constant one under a periodic perturbation on the boundary is studied. The equation describes a medium which is both dissipative and dispersive. For an appropriate combination of dispersion and dissipation the asymptotic profile looks like a periodical chain of shock fronts with a decreasing amplitude (similarly to the Burgers equation case). But due to dispersion each such front is followed by increasing oscillation leading to the next shock-like the ninth wave in rough seas. The development of such a profile is preceded by an initial shock of a constant height. © 2016.


Samokhin A.V.,Moscow State Technical University of Civil Aviation
Theoretical and Mathematical Physics(Russian Federation) | Year: 2016

We study the asymptotic profile of the solutions of the Burgers equation on a finite interval with a periodic perturbation on the boundary. The equation describes a dissipative medium, and the initial constant profile therefore passes into a wave with a decreasing amplitude. In the low-viscosity case, the asymptotic profile looks like a sawtooth wave (with periodic breaks of the derivative), similar to the known Fay solution on the half-line, but it has some new properties. © 2016, Pleiades Publishing, Ltd.


Samokhin A.,Moscow State Technical University of Civil Aviation
Journal of Physics: Conference Series | Year: 2014

The article is concerned with the study of asymptotic behavior of solutions of the Burgers equation and its generalizations with initial value - boundary problem on a finite interval, with constant boundary conditions. Since these equations take a dissipation into account, it is naturally to presuppose that any initial profile will evolve to an invariant time-independent solution with the same boundary values. Yet the answer happens to be slightly more complex. There are three possibilities: the initial profile may regularly decay to an invariant solution; or a Heaviside-type gap develops through a dispersive shock and multi-oscillations; or, exotically, an asymptotic limit is a 'frozen multi-oscillation' piecewise-differentiable solution, composed of different smooth invariant solutions.


Gorbunov A.L.,Moscow State Technical University of Civil Aviation
Aerospace Science and Technology | Year: 2014

Head-up displays (HUD) become common equipment in aircraft cockpits. One of the possible and adequate to the HUD specifics visual pilot's interfaces is the "tunnel-in-the-sky" (3D structure on a flat screen). But according to the recent studies the tunnel-in-the-sky does not provide crucial advantages in comparison with traditional methods of presenting navigation information to pilots. This paper considers a stereoscopic version of the "tunnel-in-the- sky" realized as an augmented reality (AR) pocket-size system with see-through light-weight glasses. It consists of low-cost elements and is free of drawbacks that are inherent in the existing synthetic/enhanced vision systems. The design of experiments with desktop simulators of different AR pilot's interfaces (2D, 3D and stereo 3D conditions) and their results are described. The experiment results prove the effectiveness of the proposed stereo solution. © 2014 Elsevier Masson SAS. All rights reserved.


Samokhin A.,Moscow State Technical University of Civil Aviation
Journal of Geometry and Physics | Year: 2014

The asymptotic behavior of solutions of the Burgers equation and its generalizations with initial value-boundary problem on a finite interval with constant boundary conditions is studied. Since it describes a dissipative medium, any initial profile will evolve to a time-invariant solution with the same boundary values. Yet there are three distinctive asymptotic processes: the initial profile may regularly decay to a smooth invariant solution; or a Heaviside-type gap develops through a dispersive shock and multi-oscillations; or an asymptotic limit is a stationary 'sawtooth' solution with periodical breaks of derivative. © 2014 Elsevier B.V.

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