engleski

GLOBAL NAVIGATION SATELLITE SYSTEM AS A COMPONENT OF NATIONAL INFRASTRUCTURE

Satellite navigation systems have already become a part of a daily life, supporting or founding a wide variety of systems and services, ranging from personal navigation, via voluntary system and services, to those of interest and importance on the national level (transport, economy, national security). The abundance of satellite navigation utilisation provides a side effect of exposing large systems (social, economical, technical) based on satellite navigation systems to GNSS vulnerabilities. Sources of the GNSS vulnerabilities can be considered as natural, unintentional and intentional, causing the negative local effects on GNSS-based systems. Here it is argued that the GNSS should be considered a component of a national infrastructure, and the systematic measures should be established for continuous monitoring of GNSS performance and provision of corrective actions in response to increased GNSS vulnerability on the national level in order to reduce negative effects on the GNSS-based systems. This paper proposes a national GNSSS monitoring and correction PROCEDURE, based on GNSS vulnerabilities and corrective measure procedures. Sources of the GNSS vulnerabilities are comprehensively outlined. A procedure for GNSS vulnerabilities detection on national level is proposed, along with responsive and corrective actions on both regional and national levels. This paper concludes with the importance of proposed GNSS monitoring and correction procedure for the GNSS and national risk assessment, and for development of new GNSS systems and services as a result of the concept of the GNSS as a component of national infrastructure.

GNSS; National infrastructure

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