Detect it, locate it, cancel it, in real time
Satellite terminals increasingly have to keep their link up while other signals compete for the same spectrum. Constellations are growing, terrestrial and satellite networks reuse the same bands, and interferers, accidental or deliberate, move and change. Fixed filters cannot keep up. SIRIUS gives the terminal’s antenna array the intelligence to adapt.
SIRIUS at a glance
30 dB
interference reduction targeted
−50%
computation time compared with existing solutions
24 months
from September 2026 to August 2028
TRL 5
antenna-array demonstrator, starting from TRL 3–4
How it works
The system combines three components: the antenna array, an AI-driven interference detection and classification module, and an interference mitigation engine. Together they suppress unwanted sources by reshaping the antenna radiation pattern.
At the start of the project, the consortium selects the most suitable array configuration, trading hardware complexity against beamforming flexibility (analog, fully digital or hybrid). The AI model is trained by supervised learning on beamspace-derived features: per-beam power distributions, time-frequency representations and compact covariance descriptors computed over short time windows. The mitigation engine then manages the resulting radiation patterns to suppress the interference.
The design targets wide field-of-view beam steering with reduced grating lobes, interference suppression above 30 dB, operation under several simultaneous interferers, and fast reaction times.
Milestones
| Milestone | Planned |
|---|---|
| Kick-off | September 2026 |
| System Requirements Review | Kick-off + 3 months |
| Baseline selection | Kick-off + 5 months |
| Test Readiness Review | Kick-off + 13 months |
| Detailed design | Kick-off + 17 months |
| Final Review | Kick-off + 24 months |
More about the activity on the ESA project page.
SIRIUS is carried out under a programme of, and funded by, the European Space Agency (ARTES 4.0). The view expressed herein can in no way be taken to reflect the official opinion of the European Space Agency.