HIGH TECH IN EARTH SPACE RESEARCH

Building a macromodel of equivalent electrical circuit that retains a simple dependence on variable parameters of the electrophysical model

Borisov N.I.

To date, one of the most important problems in the operation of spacecraft is the occurrence of electrostatic discharges, which are the cause of onboard radioelectronic equipment failure. Such of electrostatic discharges are caused by the electrification of the spacecraft surface as a result of prolonged exposure to ionizing cosmic radiation.

The theoretical and practical study of this problem has been the subject of many works by domestic and foreign authors.

In order to ensure reliable operation of the spacecraft of onboard radioelectronic equipment under the conditions of the periodic emergence of an electrostatic discharges, knowledge of the magnitudes of the interfering signals in the on-board cable network along the spacecraft outer surface is required. This requires a pattern machine simulation of the current spreading over the spacecraft surface based on the results of which the requirements for the noise immunity of electronic units included in the spacecraft are formed.

The linear equivalent electric circuit, consisting of a significant number of nodes and a uniformly covering spacecraft surface in the form of a grid, is often considered as the mathematical model used to study the current spreading. The tasks of analyzing such schemes are highly labor intensive and can require tens of machine time hours to solve them, which makes it difficult to carry out many tests for different of electrostatic discharges parameters and, as a result, increases the time needed to develop the onboard radioelectronic equipment. A formal method is proposed for constructing a macromodel of a linear equivalent electrical circuit formed over a communication satellite antenna. The macromodel can contain as many phase variables as the antenna designer wants. The macromodel maintains a simple dependence of its output characteristics on the design-technological variable parameters of the antenna model. The use of this approach allows reducing the complexity of calculations by several orders of magnitude.

Editorial board

Bobrowsky V.I.
(Ph.D., Associate Professor, Head of Department of "INTELTEH")

Borisov V.V.
(Ph.D., Professor, Actual Member of the Academy of Military Sciences, Professor, Department of Computer Science of MPEI)

Budko P.A.
(Ph.D., Professor, Department of Technical communication and automation in S.M. Budjonny Military Academy of the Signal Corps)

Budnikov S.A.
(Ph.D., associate professor, Actual Member of the Academy of Education Informatization, Head of the automated control systems Department in Russian Air Force Military Educational and Scientific Center “Air Force Academy named after Professor N.E. Zhukovsky and Y.A. Gagarin”)

Verhova G.V.
(Ph.D., Professor, Head of Department of Automation communication companies In the Bonch-Bruevich Saint Petersburg State University of Telecommunications)

Goncharevsky V.S.
(Ph.D., Professor, Honored Worker of Science and Technology of the Russian Federation, Professor of technologies and technical support and maintenance of the automated control systems in Military Space Academy of A.F. Mozhaysky)

Komashinskiy V.I.
(Ph.D., Professor, professor of processing and transmission discrete messages in the Bonch-Bruevich Saint Petersburg State University of Telecommunications)

Kirpanev A.V.
(Ph.D., Associate Professor, Head of JSC "Scientific Production Enterprise "Radar MMS")

Kurnosov V.I.
(Ph.D., Professor, Academician of Academy of Sciences of the Arctic, Academician of the International Academy of Informatization, International Academy of defense, security, law and order, corresponding member of the Academy of Natural Sciences, Senior Researcher" Open Joint Stock Company "Scientific Research Institute "Rubin")

Manuilov Y.S.
(Ph.D., Professor, Department of automated control systems space complexes in Military Space Academy of A.F. Mozhaysky)

Morozov A.V.
(Ph.D., Professor, Actual Member of the Academy of Military Sciences, Head of the Department of automated command and control systems in Military Аcademy of troops of antiaircraft defense)

Moshak N.N.
(Ph.D., Associate Professor, head of the department of "INTELTEH")

Prorok V.Y.
(Ph.D., Professor, professor of automatic control systems in Military Space Academy of A.F. Mozhaysky)

Semenov S.S.
(Ph.D., associate professor, professor of technical communication and automation in S.M. Budjonny Military Academy of the Signal Corps)

Sinicyn E.A.
(Ph.D., Professor, Head of the Research Department of JSC "The All-Russian research institute of radio equipment")

Shatrakov Y.G.
(Ph.D., Professor, Honored Worker of Science, Scientific Secretary of JSC "The All-Russian research institute of radio equipment")