Concepts for advanced PRS protection against electromagnetic interferenceCopyright: © DLR
The project PRS-Protect II - Konzept should give existing and future Galileo PRS and / or Open Service users the possibility to suppress interfering signals in complex interference scenarios and to localize, classify and clarify sources of interference. Based on the ballast base system developed in the PRS-Protect project, the idea is to develop the basis for a multi-purpose ballast that supports robust noise suppression with miniaturized antennas even in challenging dynamic scenarios with multiple interferers and multipath environment. At the same time, the ballast to be developed should also enable reliable detection, bearing, localization and classification of interferers. The ballast is intended to address civil sovereign users, the Bundeswehr and operators of critical infrastructures.
In the project "PRS-Protect II - Concept" a more efficient ballast should be designed. It is intended to enable robust interference suppression with miniaturized antennas even in challenging scenarios with multiple (broadband) interferers and multipath environment. The user group of the ballast is to be extended by users with high accuracy requirements (carrier phase navigation). The accuracy and robustness of the system should be further increased by exploiting and supporting multiconstellation capability and incorporating further low-cost sensor technology (INS + magnetometer).
The developed multipurpose ballast should also support the reliable detection, bearing, localization and classification of sources of interference. Two approaches are pursued: Localization of fixed sources of interference by a single dynamic receiver and localization of sources of interference by cooperation of several recipients. Through the interaction of the measuring ability of many receivers and the use of crowd approaches, dynamic situation pictures of the current situation and their positions can be provided. The ability to locate and classify jammers makes the proposed ballast more attractive to both civilian users (such as the Federal Network Agency, police authorities) and the German Armed Forces.