ATC ground communications system optimization techniques
Article Abstract:
The US Federal Aviation Administration is developing a hybrid leased/owned ground communications system to support its air traffic control (ATC) voice and data communications as part of the National Airspace System. Owning parts of the system is expected to reduce cost and improve performance and reliability. The NAS Interfacility Communications System (NICS) FAA-owned radio communications link (RCL) network serves as the backbone of the NICS transmission facility. RCL connects the CONUS Air Route Traffic Control Centers (ARTCCs) via a terrestrial microwave radio network operating in the 8-GHz government frequency band; the analog network has 960 channels. Other components of the NICS are user access networks, which are typically private leased lines or low-density microwave radio links, and the FAA-owned National Airspace Data Interchange Network II packet data switching network.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1989
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Advanced traffic management system automation
Article Abstract:
The US Department of Transportation's Transportation Systems Center (TSC) has enhanced its Advanced Traffic Management System (ATMS) through an automation program sponsored by the Federal Aviation Administration (FAA) and leading to the creation of the Enhanced Traffic Management System (ETMS) facility. ETMS is comprised of one part for research and development activities and two parts supporting the FAA's operational traffic management needs. The aircraft situation display (ASD) installed in Feb 1987 and the monitor and alert (MA) capability installed in Jun 1988 are the two primary successes of the program. The traffic management function, the research and development program, the ATMS five-phase development plan, ASD's functions and operation, transmission of data to remote sites and the ETMS development life cycle are described.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1989
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Development and operation of the traffic alert and collision avoidance system
Article Abstract:
The Traffic Alert and Collision Avoidance System (TCAS) is based on Beacon-based Collision Avoidance System (BCAS) techniques and discrete address communications methods that use the Mode S beacon system message formats. TCAS improves on BCAS in its provision of collision protection in highest aircraft densities and auxiliary display of traffic information, as well as in its ability to signal pilots when non-Mode C aircraft (those unable to report altitude) are in the area. TCAS I, for general aviation, corporate and commuter airline aircraft, alerts the flight crew of an intruder aircraft; TCAS II, for in transport aircraft, gives direction advice when a collision is imminent; and TCAS III, also for transport aircraft, generates traffic advisories and resolution advisories in horizontal and vertical planes.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1989
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