24, June 2019

ESA Open Invitation to Tender AO9915
Open Date: 19/06/2019
Closing Date: 30/08/2019 13:00:00

Status: ISSUED
Reference Nr.: 19.154.09
Prog. Ref.: NAVISP Element 1
Budget Ref.: E/0365-10 – NAVISP Element 1
Tender Type: C
Price Range: 200-500 KEURO
Products: Ground Segment / Ground Station / F&T equipment / Time Generation and Synchronisation equipment
Technology Domains: RF Systems, Payloads and Technologies / RF Technologies and Equipment / Time and Frequency
Establishment: ESTEC
Directorate: Directorate of Navigation
Department: Strategy and Programme Department
Division: NAVISP Programme Office
Contract Officer: Papaioannou, Maria
Industrial Policy Measure: N/A – Not apply
Last Update Date: 19/06/2019
Update Reason: Tender issue

GNSS is extensively used in aviation, notably for: – positioning and timing for on board navigation purposes; – timing and synchronisation for datalink communications (board to ground and viceversa); – timing and synchronisation on ground for Surveillance,Air Traffic Control (ATC) and communication networks. GNSS time outages or unexpected anomalies may affect aviation systems and networks. Other and independent timing sources may be available to back-up/complement the GNSS timing and synchronisation service, e.g. clocks, Low Frequency systems, Network Time Protocols (NTPs). Their usage may depend on various factors, mainly coverage area and phase of flight for the on board case, ground equipment for surveillance and communications. The objectives of the proposed activity are to: – assess the criticality of the use of GNSS time in aviation; – define and perform demonstration of innovative PNTconceptscomplementary to GNSS, in order to provide robust and secure timing and synchronisation services for aviation systems and networks;Relevant recommendations for aviation (CNS/ATM) will be provided as outcome of the study.

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