Забезпечення необхідної надійності функціонування каналів залізничного технологічного радіозв’язку

Abstract

The analysis of factors affecting the provision of quality and reliable performance of mobile radio communication channels under the impact of the railway infrastructure has been conducted. Key issues concerning the improvement of the reliability of radio channels have been identified. The model ensuring the reliability of mobile radio systems can be considered consisting of three links. The first link is a technical radio equipment in the broad sense, the transmitting and receiving devices, the modulation and error-correcting coding, etc. Ensuring reliability in this segment is a separate issue that should be resolved at the stage of development and production of radio equipment. The second component is the environment of radio propagation and activities associated with providing the necessary energy characteristics and stable operation of channels in deep spatial fluctuations of the field strength. The third link is the system operation and maintenance, considered as a set of methods and algorithms for maintenance of engineering control and appropriate technical staff, which carries out the organization and maintenance of radio communications within the established norms. It is shown that the most effective methods of improving the reliability of networks of technological radio communication on railway transport is the rational solution of the major issues of the organization of radio network, calculating channels, and improving operational control. These issues can be solved during design and implementation stages without significant additional costs.