PMA209 2012 Core Avionics Master Plan - NAVAIR - U.S. Navy

Core Avionics Master Plan 2012 Appendix A-4Baseline to Vision Transition Strategy (continued).The primary purpose for incorporating capability to meet CNS/ATM mandates is toensure that military aircraft retain access to sovereign civil airspace. Compliance isaccomplished through frequency mapping, filter upgrades to radios, digital cockpitupgrades, incorporation of GPS ‘integrity’ monitoring (signal verification), and integrationand utilization of the Mode S waveform and message sets. Each mandate applies to aspecific sovereign airspace and follows specific implementation schedules. Mostcommercial aircraft have already achieved these new functionalities. Non-compliantmilitary aircraft have become a burden on efficient safe operations. Most Naval aircrafthave already achieved 8.33 khz channel spacing, PILS, RVSM and the appropriateMode S functionality; either Elementary Surveillance (ELS) for fighters and helicoptersor Enhanced Surveillance (EHS) for transport type aircraft. The PMA209 CNS/ATMIntegrated Product Team is tracking the progress of mandates and working to evolvemilitary systems to meet growing requirements.The latest civil interoperability mandate that will apply to aircraft flying within the NASis ADS-B ‘Out’ (effective 1 January 2020). ADS-B is a broadcast architecture whereeach aircraft ‘squitters’ (constant transmissions of at least one pulse per second) itsidentification, GPS based position and velocity vector. The Federal AviationAdministration (FAA) has identified two different links which can be used for ADS-Bbroadcasts: Mode S 1090 mhz Extended Squitter (1090ES) and 978 mhz UniversalAccess Transceiver (UAT). They have chartered an extensive ground infrastructure tocapture these aircraft broadcasts which became operational in several locations in theUnited States National Airspace (NAS) in January 2012. It enables controllers to getmore detailed and accurate aircraft PPLI information without using radar equipment.ADS-B receive mode (ADS-B ‘In’) may eventually also be required, which would enableaircraft to build their own Cockpit Display of Traffic Information (CDTI). ADS-B ‘In’ usingeither 1090 ES or 978 mhz UAT enables aircraft to get flight information from groundstations. Only 978 mhz UAT also enables aircraft to get ground based weatherdepictions. PMA209 is attempting to deliver ADS-B functionality along with RNP/RNAV.Although the requirement is to retain access to sovereign civil airspace, CNS/ATMintegration also enables other military capability growth. Modern hardware and softwarecomponents being incorporated with CNS/ATM upgrades can provide the digitalframework for additional processing and display necessary for other core warfightingfunctionalities, such as mission information management tools, networked tacticalSituational Awareness (SA) tools, data-linked tactical information display (streamingvideo) and improved aircraft attitude and drift cues for helicopter hover operations inDegraded Visual Environments (DVE). Without these enhancements, several legacyplatforms will not be able to host transformational force level capabilities such asNetwork Centric Operations (NCO), Single Integrated Air Picture (SIAP) and JointPrecision and Approach Landing System (JPALS) marshalling and recovery. Each ofthese operational capabilities leverages core avionics elements such as improvedtransceivers, interrogator/transponder, processors, antennas and displays. For the mostpart, integration efforts are centrally managed by PMA209. The centralized team workswith platform experts to leverage existing aircraft architectures. Efficiencies areachieved through re-use of government owned software, economy of scale withcommon equipment procurement, and reduced management overhead.A-4 Cooperative Surveillance 3