23, June 2020

ESA Open Invitation to Tender AO10381
Open Date: 10/06/2020
Closing Date: 05/08/2020 13:00:00

Status: ISSUED
Reference Nr.: 20.154.07
Prog. Ref.: NAVISP Phase 2 E1
Budget Ref.: E/0365-40 – NAVISP Phase 2 E1
Tender Type: C
Price Range: 200-500 KEURO
Products: Satellites & Probes / RF / Microwave Communication (Platform and Payloads) / Receivers / “Navigation Receivers *See AOCS & GNC – Single-frequency (Platform/Low-end missions) – Multiple-frequency (Science mission/hig-end missions)” / Ground Segment / Ground Station / RF equipment / Transmitter and Receiver assemblies, Frequency converters, …
Technology Domains: RF Systems, Payloads and Technologies / Radio Navigation Systems/Subsystems / Navigation System Tools / RF Systems, Payloads and Technologies / Radio Navigation Systems/Subsystems / Ground Receivers
Establishment: ESTEC
Directorate: Directorate of Navigation
Department: Strategy and Programme Department
Division: NAVISP Programme Office
Contract Officer: Pratesi, Giulia
Industrial Policy Measure: N/A – Not apply
Last Update Date: 10/06/2020
Update Reason: Tender issue

Radio frequency interference, intentional or not, is considered to be among the main threats to safety-critical and commercial GNSSapplications. This includes out-of-band emissions, privacy-protection devices (PPD) also known as in-car jammers, etc. Consequently,many COTS GNSS receivers nowadays integrate mitigation strategies for RF interferences (jamming and spoofing). Moreover, one can note that PPDs are continuously evolving, becoming more complex and consequently introducing new challenges to RFI mitigation. UsuallyRFI mitigation is a built-in feature, and even if based on some adaptive signal processing algorithms, those features are static and do not evolve over time. Therefore, they cannot not really adapt to the evolution of the RFI landscape, which may include new out-of-band emissions or new interferences with different signatures.In the field of IT security, antiviruses and anti-malware protection are regularly updated to cope with new threats, as those are continuously monitored and used to design those updates. A similarapproach could be applied to GNSS, where new RFI threats could be discovered and managed over time. By having a flexible and reconfigurable DSP frontend monitoring the GNSS bands, before the usual baseband stages of a GNSS receiver, it could detect the presenceofinterference and apply the relevant mitigation. The processing could be implemented in software modules, which would be continuously improved by service centers/operators monitoring the RFI signatures, which updates the user equipment as an antivirus would do.

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