ESA Open Invitation to Tender AO10426
Open Date: 17/07/2020
Closing Date: 14/09/2020 13:00:00

Status: ISSUED
Reference Nr.: 20.154.14
Prog. Ref.: NAVISP Phase 2 E1
Budget Ref.: E/0365-40 – NAVISP Phase 2 E1
Special Prov.: BE+DK+CH+GB+AT+NL+NO+FI+CZ+RO+FR+IT+GR+HU+SE
Tender Type: C
Price Range: 200-500 KEURO
Products: Satellites & Probes / Payloads / Instruments / RF and microwave Instruments / Other (Scatterometers,..) / Satellites & Probes / System Engineering Software / System Modelling & Simulation / Other
Technology Domains: RF Systems, Payloads and Technologies / Radio Navigation Systems/Subsystems / Navigation System Tools
Establishment: ESTEC
Directorate: Directorate of Navigation
Department: Strategy and Programme Department
Division: NAVISP Programme Office
Contract Officer: Karger-Kocsis, Anna
Industrial Policy Measure: N/A – Not apply
Last Update Date: 17/07/2020
Update Reason: Tender issue

A great number of civilian and military applications relies on GNSS for PNT, however its availability could be severely degraded bylocal interference. In this context GNSS spectrum monitoring is essential for [1] detecting, characterizing and localizing interference sources, which could endanger the adequate reception and processing of GNSS signals; [2] initiating a justified request processfor interferer elimination; [3] warning in a timely way GNSS users exposed to the interference on the expected service degradation.Ground-based GNSS-interference-monitoring stations only function over the area defined by the horizon of the stations antenna (disregarding blockage considerations); moreover for achieving high resolution localization, the ground-based station requires of complexequipment, which derive the angle/direction of arrival and distance to the interference sources. Space-borne GNSS-interference-monitors, at LEO orbit, could be a much more effective solution for wide-areas (e.g. Europe), which in addition may include sea areas, given that a single spacecraft can observe a much larger area than a ground station.The main objective of the proposed activity is to study, define and characterize a GNSS spectrum monitoring-system based on space-borne monitors, for non-PRS GNSS signals, providing detection, characterization and localization of possible GNSS interferers over wide areas (e.g Europe), and providing timely warnings to those users possibly affected.