减轻 GNSS 射频干扰 (FRI).pdf

1、Mitigating GNSS Radio Frequency Interference(RFI)Gerhard BERZEUROCONTROL EUROCONTROL Network Manager User Forum 2025Threat to Aviation Safety Impact on all CNS elements:PBN,ADS-B,CPDLC Plus large variety of cascading effects Difficult to predict actual operational impact Most severe threat:Uncoordin

2、ated high-rate climb due to false Enhanced Ground Proximity Warnings(EGPWS/TAWS)Fundamentally undermines todays cockpit safety principles:Trust your instruments Follow Standard Operating Procedure(SOP)ATC Perspective:“Anytime GNSS RFI results in an aircraft not operating in accordance with its clear

3、ance,the risk to the operation increases!”EUROCONTROL GNSS RFI Monitoring ToolADS-B Low PIC Map,Week 8,2024Using dedicated 1090 MHz monitoring network,with%affected flights per FIR,part of SHERLOCK Platform2018 2022:GNSS RFI becoming part of daily OPS in some regions,no longer just a“contingency”it

4、is“normal”operation.2023 2024:Escalation to collateral spoofing,impact can get significant including no recovery of GPS until arrival destination.Some diversions!Working on CONOPS with most affected States to develop near real time monitoring capability to enable operational decision making to help

5、ensure continued safety 4Request from Pilots:Give me the“GPS Weather”on my EFB!GNSS RFI Layer in Lido mPilot-Conducted Operational Pilot Trials with Lufthansa Systems-Lufthansa Group starting operational introduction using NM B2B Interface-Allows deselection of GPS(if possible)prior to entering GPS-

6、degraded environment to limit impact and reactivation of GPS once outside-Helpful,but note that aircraft capabilities remain degradedATC Support Function for GNSS RFI Mitigation(ADS-B low PIC today,working on standardised capability in future!)Steps1.GNSS Receiver detects RFI and