PRIMUS 2 - PRS Informationsmodellierung und Server Konzept für Österreich
The Galileo Public Regulated Service (PRS) offers – compared to existing GNSS (Global Navigation Satellite Systems) - improved continuity and robustness against interference for public authorised user groups. Precondition to use PRS on a national basis is to fulfil the Common Minimum Standards, especially to establish a national Competent PRS Authority (CPA). Objective of PRIMUS 2 is to analyse technical, economical and organisational factors relevant for the optimal establishment of Galileo PRS in Austria. Results are recommendations for the strategic and operative implementation of the CPA in Austria.
The Galileo Public Regulated Service (PRS) is one of the key enablers for the overall Galileo project, since it adds capabilities not provided by other GNSSs. The need for PRS results from the analysis of threats to the Galileo system and the identification of infrastructure applications where disruptions to the signal in space (SIS) by economic terrorists, malcontents, subversives or hostile agencies could result in damaging reductions in national security, law enforcement, safety or economic activity within a significant geographic area. The objective of PRS is to improve the probability of continuous availability (up to 99,9%) of the SIS, also in the presence of interfering threats to the users with such a high need. Precondition for the use of PRS is the compliance with the common minimum standards (cf. [1104/2011/EU]) including the establishment of a national Competent PRS Authority (CPA). The national CPA decides which users are entitled to use PRS in a Member State. In June 2018 the legal basis in the “Informationssicherheitsverordnung” to install an Austrian CPA was established.
Objective of PRIMUS 2 is to build on the results of the predecessor project PRIMUS and to analyse technical, economic and organisational factors for the implementation of Galileo PRS in Austria. As a first step, the applicability of the generated Information Exchange model is researched. All necessary factors for the classification of users and their combination into different user groups (according to the requirements of the common minimum standards) are identified (organisational, legal, technical) and mapped in a decision tree. The feasibility is tested with two different user groups by exemplary execution of the model and the decision tree generated. Recommendations for the type PRS usage ("PRS only" vs. "PRS Server") per user group are given. Furthermore, the foundations for the necessary operational concepts and procedures for the use of PRS in Austria are analysed, their applicability for the different types of PRS usage is tested. The snapshot technique examined in the predecessor project PRIMUS will be further improved within PRIMUS 2 (reduce the latency, improve data transfer capabilities, analysis of robustness against interference). Because the snapshot technique requires a PRS receiver on the server-side, technical alternatives (e.g. blind GNSS sequence tracking) are investigated by means of simulations and analyses and compared with the PRSserver concept. Based on the technical comparison also efficiency (cost, operation, maintenance) will be examined and compared. Recommendations for the strategic and operational implementation of the CPA in Austria are the result. This includes a decision tree model and proposals for processes for the user(groups), recommendations for use concepts per user group, a further development of the snapshot method, as well as examination of alternatives in terms of the PRS server concept.
BRIMATECH Services GmbH
TeleConsult Austria GmbH
Rettenbacher Straße 22; A-8044 Graz
TU Wien, Department für Geodäsie & Geoinformation
Forschungsbereich Höhere Geodäsie
Gußhausstraße 27-29/E120-4, A-1040 Wien
Bundesministerium für Landesverteidigung
Roßauer Lände 1 - 1090 A-Wien
Ballhausplatz 2, 1010 A-Wien