Research of the frequency characteristics of models of the coupling impedance of on-board cables of flying vehicles

Аuthors

Kirillov V. Y.^1*, Klykov A. V.^2**, Zhegov N. A.^3***, Nguyen V. H.^2****, Tomilin M. M.^2**

1. ,
2. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
3. Moscow Experimental Design Bureau “Mars”, 1-st Shemilovsky lane 16, building 2, Moscow, 127473, Russia

*e-mail: kaf309@mai.ru
**e-mail: emc@mai.ru
***e-mail: nzhegov@yandex.ru
****e-mail: vankhoi2603@gmail.com

Abstract

Purpose
On-board cables of flying vehicles due to their significant length are the most sensitive receptors on exposure to EMI.
Electromagnetic interferences immunity of on-board systems of flying vehicles depends on shielding efficiency of the on-board cables, which evaluated from parameters of the cable shields. The shielding efficiency related with important characteristic of cable shields — coupling impedance (transfer impedance).
Therefore, it is important to provide required shielding efficiency of on-board cables. For this purpose it is necessary on design stage to evaluate the levels of the conductive electromagnetic interferences in inner conductors of the on-board cables, generated by different electromagnetic influences.
The accuracy of evaluation depends on choice of a coupling impedance model. Comparison of known models of coupling impedance of the on-board cables of various types of flying vehicles is the problem that was studied in the paper.
Design/methodology/approach
A theoretical part is based on classical electrodynamics and electrical engineering. Also elements of the complex variable theory and operational calculus were used.
Findings
The paper presents results of evaluation of on-board cable coupling impedance frequency characteristics, executed with MATLAB. On the basis of results presented a conclusion can be made that accuracy of evaluation depends on model of coupling impedance selection.
Research limitations/implications
The present paper provides a part of research in calculation electromagnetic interferences on-board cables of space vehicles.

Keywords:

on-board cable, flying vehicle, electromagnetic interference, coupling impedance

References

1. BusurinV.I., NosovYu.R. Volokonno-opticheskiedatchiki: Physicheskieocnovi, voprosirascheta i primeneniya (Fiber Optic Sensors: Physical basis, calculation and application questions, Мoscow, Energoatomizdat, 1990, 256 p.
2. Ryder G.H. Strength of materials, Third Edition in SI UNITS, 1969, 197 p.
3. De Hoff R.T. Thermodynamics in materials science, McGraw-Hill, 1993, 18 p.

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