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  5. Method of aviation radio traffic confidentiality securing

Method of aviation radio traffic confidentiality securing

A. Bekirov, A. Krasnorutsky, N. Kovtunenko
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Description: In this article we explored important question – how to provide secure aviation radio traffic of Ukrainian Air Forces. We analyzed functioning of existing radio traffic confidentiality supporting facility and formed main problems, so we proposed to support coverage of voice message semantic part with account of existing facility functioning. We are developing method which supports radio traffic confidentiality on base of inverse – increment coding of voice message spectral representation components in case of key information availability. Driven by software simulation we evaluated proposed method on the side of incoming and modified voice message distortion for authorized user and for enemy. We found out that typical communication system (TCS-2) does not correspond voice message security directives in battle situation condition. Main problem is that there is no distinct syn-chronization between airplane and ground command facility. Also was found out that we need to use memory storage, what causes extra channel traffic load, which has limited carrying capacity. In this article we form requirements to the method. Ac-complishment of these requirements could guarantee closing of semantic component of voice message. Proposed method takes into account all system red lines of facility, which is established on the board of an airplane, and also has synchronization with other airplane, which has a key, or with ground command facility. Due to data value appraisal of modified voice message peak signal-to-noise ratio fractionally to outcome signal we made a conclusion that the data value of peak signal-to-noise ratio for different conditions of created method functioning takes a value lower then audibility cutoff and due to that provides voice mes-sage semantic content confidentiality. The use of this method on the board of an airplane in the battle allows pilot to send and receive secret information and successfully perform assigned for him mission.


Keywords: radio traffic confidentiality, delta-coding, voice message spectrum, key rule.

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Reference:
 Bekirov, A.E., Krasnorutskyi, A.O. and Kovtunenko, N.M. (2019), “Metod zabezpechennia konfidentsiinosti radioperehovoriv aviatsii” [Method of aviation radio traffic confidentiality securing], Scientific Works of Kharkiv National Air Force University, Vol. 2(60), pp. 83-90. https://doi.org/10.30748/zhups.2019.60.11.