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DHM

GNSS SiS & Interference Monitoring Networks –
4 GNSS reference stations for broadcasting RTK corrections on the Black Sea coastal area

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Global Navigation Satellite Systems are a critical resource for the deployment of various activities, from locating goods, to land, sea, air and space navigation, up to the synchronization of communication and energy networks. However, GNSS signals have a series of vulnerabilities that can be exploited by private or state actors, leading to partial or total interruption of services or provision of false information. Both at global and national level, GNSS users are looking for ways to protect their activities from these vulnerabilities.

In 2021, RISE installed for DHM a network of four GNSS/RTK stations, covering the Black Sea coast and the Danube Delta. Besides providing RTK corrections, the stations can also be used for GNSS signal monitoring and interference detection. This feature proved its importance and utility in the context of the military conflict taking place near the eastern Romanian boarder. The stations detected interference events, in some cases even leading to temporary loss of GNSS position.

Therefore, DHM intends to extend the network of stations towards the Danube region, in order to achieve increased navigation performance and a better overview of the radio environment.

The purpose of this project was to deploy a network of GNSS and interference monitoring stations in the Danube region. The objectives of the network are:

  • GNSS signal monitoring and interference detection for improved identification of vulnerabilities and increased operational safety
  • Provision of RTK correction through radio for better navigation accuracy
  • Verification receiver at each station