Modeling the influence of cosmic radiation on the operation of a satellite repeater radio path

Аuthors

Rusov Y. S.^*, Kurenkov P. P.^**, Afanasyev G. I.^***

Bauman Moscow State Technical University, Moscow, Russian Federation

*e-mail: rusovjus@bmstu.ru
**e-mail: kurenkov@bmstu.ru
***e-mail: gaipcs@bmstu.ru

Abstract

This paper examines two transmission path designs for an onboard repeater in a satellite communications system. One is based on a software-defined device, while the other is implemented using discrete microwave components. A mathematical model is proposed for simulating signal propagation through the radio path for various path configurations. To account for the effects of ionizing cosmic radiation, the model includes an instantaneous noise modulation coefficient associated with the occurrence of flicker noise and a coefficient determining the deviation of dielectric parameters due to accumulated ionization. The change in the signal shape at the path output for various deviations in dielectric material parameters under the influence of ionizing radiation is studied.

Keywords:

satellite communication system; onboard repeater; software-defined radio; total ionizing dose, error vector magnitude

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