Multifrequency Digital Beamforming Antenna
Start date: 05/03/2024 10:00
End date: 05/03/2024 11:30
Register for the Final Presentation of the NAVISP EL2-101 Project: "Multifrequency Digital Beamforming Antenna (MEDEA)"
MEDEA, an NAVISP project carried out by ST4I , together with RadioPoints srl and Consortium ULISSE, aimed to develop a GNSS active multifrequency / multi-radiators array antenna unit providing high integrity against electromagnetic interference and spoofing.
MEDEA has been designed to achieve a better GNSS data integrity status because of its capability to detect, locate, and mitigate interference and spoofing attacks. It can be connected to a commercial EGNSS receiver and configurated as:
- simple antenna, replacing the legacy ones;
- integrated unit providing additional integrity functions
- GNSS signal Monitoring Station.
MEDEA, when in normal operations, operates by a very huge operative BW including the whole GNSS spectrum with the addition of INMARSAT bandwidth. Under attack, for the time being, it can protect L1/E1 BW from EM interference by Digital Beam Forming.
The main MEDEA features are:
- Electronic antenna with Digital Beam Forming exhibiting nulling capability and composed of multiple receiving elements (array with 7 radiators).
- Set of interference mitigation algorithms adaptable to different situations and customer needs. In this respect, a new set of mitigation algorithms have been developed for MEDEA to merge simplicity and minimum influence on PNT accuracy when applied.In the assumption MEDEA can access to GNSS receiver data:
- Anomaly detection system for GNSS signals capable to operate by pre-correlation and post-correlation functions,
- Activation of anti-spoofing routines.
Furthermore, ancillary sensors contribute to the integrity evaluation of the measurement and support the antenna operations in a mobile environment.
MEDEA owns a high degree of flexibility and versatility in its configurability and re-programmability providing customized solutions for any potential users involved in maritime operations, even on already operative units.
The NAVISP Project EL2-101 “Multifrequency Digital Beamforming Antenna (MEDEA)" was funded by NAVISP Element 2, which is devoted to supporting competitiveness of European industries.