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Barabanova L.P.,Degtyarev Kovrov State Technological Academy
Journal of Computer and Systems Sciences International | Year: 2010

The lower bounds for the coefficients GDOP and PDOP, which are exact in the case of an even number of satellites of the global navigation satellite system (GNSS), are presented. © 2010 Pleiades Publishing, Ltd. Source


Barabanova L.P.,Degtyarev Kovrov State Technological Academy
21st Saint Petersburg International Conference on Integrated Navigation Systems, ICINS 2014 - Proceedings | Year: 2014

This paper introduces a new atmospheric algorithm for a GNSS receiver. In the proposed algorithm, the speed of light is known in advance, it is a function of the altitude in inhomogeneous atmosphere. A new basic system of equations for navigation is proposed. It is the first algorithm for adequate calculation of the receiver positioning in spherically layered medium when the receiver receives signals from four or more sources. The implementation of the proposed algorithm promises significant increase in the positioning accuracy by means of the GNSS. Source


Solokhin S.A.,Degtyarev Kovrov State Technological Academy | Sirotkin A.A.,RAS A.M. Prokhorov General Physics Institute | Garnov S.V.,RAS A.M. Prokhorov General Physics Institute
Laser Physics | Year: 2011

A diode-pumped Nd:YAG laser operating with active-passive Q-switch mode locking, has been developed. The acousto-optic repetition train was one kilohertz with generated pulse train widths 65 ns, single pulse widths 200 ps and an average power of 6.5 W. Improvement of efficiency of small diameter deep holes laser drilling in different materials was studied. © Pleiades Publishing, Ltd. 2011. Source


Krasavin V.V.,Degtyarev Kovrov State Technological Academy | Krasavin A.V.,Kings College London
Physica Status Solidi (B) Basic Research | Year: 2014

The behaviour of the Poisson's ratio is investigated on the basis of derived by the authors explicit equations determining the components of the compliance tensor in an arbitrarily rotated coordinate frame. Clear analytical expressions describing the angular dependencies of the auxetic properties have been found and the crystallographic regions possessing such auxetic behaviour have been revealed for single crystals of elemental metals. This was completed with the straightforward expressions for calculation of the maximum values of auxeticity. The connection between the auxetic properties and the level of anisotropy of single crystals as well as the Cauchy relation has been analysed for various metals with BCC and FCC lattices. © 2014 WILEY-VCH Verlag GmbH & Co. Source


Barabanova L.P.,Degtyarev Kovrov State Technological Academy
17th Saint Petersburg International Conference on Integrated Navigation Systems, ICINS 2010 - Proceedings | Year: 2010

The lower bounds for the coefficients GDOP and PDOP, which are exact in the case of an even number of satellites of the global navigation satellite system (GNSS), are presented. Source

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