Aerospace Technic and Technology

The article proposes and investigates the system of protected voice radio control by the functions of an unmanned aerial vehicle, which is based on the first developed method of secure transmission of voice commands of radio control and the idea of voice authentication of legal subjects of management, where only the voice radio channel is used to transmit control information, thereby allowing the system to be implemented in existing voice radio systems, where on the betraying side is the subject of control, and as a receiver an unmanned aerial vehicle that performs the spoken voice commands. The proposed idea makes it possible to significantly complicate the struggle of malefactors with this kind of systems, since the frequencies at which the voice mobile radio is operating are in common use, and means fighting with this kind of systems will result in the failure of public voice mobile communications. The system of protected voice control of an unmanned aerial vehicle makes it possible to ensure sufficient confidentiality of the transmitted voice commands from the interception of information with the purpose of illegally capturing or destroying an unmanned aerial vehicle throughout the flight. For the first time, the method of voice authentication of legal subjects of management based on the idea of successive substitution of the authentication parameters of the control subject for each subsequent voice command on the authentication parameters from the database, the sequence of which was performed before the flight in a pseudorandom manner and synchronized. The expediency of using the presented system of protected voice radio control functions of an unmanned aerial vehicle is substantiated and experimentally proved. The results of automatic recognition of voice control commands are evaluated using a classifier constructed using the minimum distance criterion, where the decision on the positive identification of voice commands is made by the criterion of a minimum variance in a given threshold of acceptable recognition. The obtained results of experimental research allow to draw a conclusion about the expediency of further practical application of the presented system of protected voice radio control by the functions of an unmanned aerial vehicle

voice signals; voice commands; voice commands recognition; voice authentication; semantic identification; secure voice commands transmission; voice protected voice control system; unmanned aerial vehicle

Sung-Won, J., Ki-Won, S., Moon-Youl, P. A study on robust control of mobile robot by voice command. Automation and Systems, IEEE International Conference, 2014, pp. 657-659.

Bo, C., Tongze, X. Design and realization of an intelligent access control system based on voice recognition. Communication, control and Management, IEEE International Conference, 2009, pp. 229-232.

Subudhi, B. D., Patra, A. K., Bhattacharya, N. Embedded design of a remote voice control and securi-ty system. Region 10, IEEE International Conference, 2008, pp. 1-6.

Yogeshwaran, S., Venkatesh, S. Real time voice identification based gear control system in LMV using MFCC. Soft-Computing and Networks Security, IEEE International Conference, 2015, pp. 1-7.

Kavitha, S., Veena, S., Kumaraswamy, R. Development of automatic speech recognition system for voice activated Ground Control system. Communications and Computing Technology, IEEE International Conference, 2015, pp. 1-5.

Stefanovic, M., Cetic, N., Kovacevic, M., Kovacevic, J., Jankovic, M. Voice control system with advanced recognition. Telecommunications Forum, IEEE 20th International Conference, 2012, pp. 1601-1604.

Huang, R., Shi, G. Design of the control system for hybrid driving two-arm robot based on voice recognition. Industrial Informatics, IEEE 10th International Conference, 2012, pp. 602-605.

Zhizeng, L., Jingbing, Z. Speech recognition and its application in voice-based robot control system. Intelligent Mechatronics and Automation, IEEE Inter-national Conference, 2004, pp. 960-963.

Lavrynenko, O., Konakhovych, G., Odarchen-ko, R., Bakhtiiarov, D. Voice Command Signal Compression Algorithm by Functions of Unmanned Aerial Vehicles. Aerospace Technic and Technology, 2016, vol. 130, no. 3, pp. 57-67.

Lavrynenko, O., Konakhovych, G., Bakhtiiarov, D. Method of Voice Control Functions of the UAV. Methods and Systems of Navigation and Motion Control (MSNMC), IEEE 4th International Conference, 2016, pp. 47-50.