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One is all you need

The performance of what the company says is a unique one-satellite geolocation solution that is being deployed across its global monitoring network has been validated, Eutelsat Communications has announced.

The SIECAMS ILS ONE service developed by Siemens Convergence Creators is said to assist in the localisation of interference signals without the need for an adjacent satellite, thereby increasing Eutelsat’s ability to intervene in the event of accidental or deliberate interference to customer signals.

Existing satellite geolocation systems call for at least two geostationary satellites in close proximity to obtain sufficient crosstalk for reliable geolocation signal processing, Eutelsat notes.

Crosstalk on an adjacent satellite needs to be within the same frequency range and polarisation as the interference signal on the affected satellite.

Even for multi-satellite operators, some satellites are isolated in terms of uplink frequency ranges, polarisation and footprint.
This, says Eutelsat, is especially true for Ka-band satellites where crosstalk is either not applicable or too small to be measurable.

“Having validated proof of concept, we are confidently deploying the one-satellite interference detection system,” said Mark Rawlins, Eutelsat’s director of the communications system control centre.