Results from an analysis of alternatives on the usefulness of the 1090 Extended Squitter messaging format to provide Wake Vortex/Meteorology (WV/MET) data exchange without negative operational impact on other channel users.
Potential 1090 Extended Squitter Support of Wake Vortex/Meteorology Applications
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The Automatic Dependent Surveillance-Broadcast (ADS-B) 1090 Megahertz (MHz) Extended Squitter (1090ES) message broadcast requirements supporting Wake Vortex and Meteorology (WV/MET) data updates are derived from the "Aircraft Derived Meteorological Data via Data Link for Wake Vortex, Air Traffic Management and Weather Applications - Operational Services and Environmental Definition (OSED)" (DO-338). Evaluation of the OSED proposed alternatives is based on these requirements as well as an examination of the potential impact of these alternatives on ADS-B users. Criteria for this impact assessment are the "ADS-B Traffic Surveillance Systems and Applications (ATSSA) ADS-B Minimum Aviation System Performance Standards (MASPS)" (DO-338) requirements for state vector updates. Expected performance estimates in specified interference environments use The MITRE Corporation 1090 MHz Co-channel Interference Model. Model validation and expected performance in several interference scenarios proposed by the FAA's 1090 MHz Spectrum Mitigation Alternatives Working Group are described.