Development of the “friend-or-foe” identification system on the basis of programmable radiomodems

The issue of “friend-or-foe” (FoF) vehicles identification and recognition systems improvement in terms of speed and reliability of information processing is considered. Issues of new FoF algorithms and backup channels development for aircraft and unmanned aerial vehicles (UAV) identification based on modern cryptographic algorithms and programmable radiomodems are discussed.

The requirements for governmental civilian and military recognition systems based on cryptography and computer security methods are given. Recommendations for eliminating the shortcomings of the existing FoF recognition system are formulated. Increasing the reliability of the FoF identification system in the proposed work is based on the created series of backup data transmission channels, which should use different operating frequencies and different types of frequency processing of digital radio signals to increase the stability of the special communication system in the case of radio electronic warfare interference stations usage.

The developed friend-or-foe” identification system on the basis of radio modems, made with programmable gate matrices for creating interference-protected and encrypted communication channels have been tested on real software radio stations: Ettus B200 and HackRF One. The functionality of the presented visual models of radio modems and the rationality of their use for the on-board special-purpose devices creation have been confirmed by the results of full-scale experiments in laboratory conditions.