Robust offshore operations thanks to anti-jamming technology
Creating land for the future, is the slogan here at DEME and this is thanks in part to the accuracy and robustness of Septentrio’s GNSS receivers.
Commercial marine dredging operations are essential to keep busy waterways and harbours always open for international trade. However, these operations were significantly impacted by radio transmissions, used for military exercises, which were ‘leaking’ into GNSS signals around the commercial waterways. The result: major periodic in-band interference, knocking out the complete L2 band (both for GPS and GLONASS) on all commercial receivers every 7 seconds for a few hundred milliseconds.
With the activation of Advanced Interference Mitigation (AIM+) countermeasures in both land-based and ship-based receivers, all of the in-band interference was filtered out from the GPS and GLONASS L2 bands. This resulted in high-quality GNSS signals being available for the high accuracy real-time positioning needed for dredging operations.
Advanced Interference Mitigation (AIM+) allowed us to ignore local GNSS interference and continue our dredging operations.
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