Airborne Surveillance and Separation Assurance Processing

Abstract

The Aircraft Surveillance Applications System (ASAS) consists of an Airborne Surveillance and Separation Assurance Processor (ASSAP) and Cockpit Display of Traffic Information (CDTI). While supporting generation of the Minimum Operational Performance Standards (MOPS) for ASAS, the MITRE Corporation developed a high level functional architecture and low level algorithms for the ASSAP subsystem. The sample ASSAP algorithms have been implemented in MATLAB, along with a high fidelity representation of the CDTI. The cumulative ASAS simulation has been tested and refined with a number of data sources, including operational surveillance data from flight tests performed at the William J. Hughes [FAA] Technical Center in July of 2007 and synthesized data derived from Area Navigation (RNAV) tracks recorded at Hartsfield -Jackson Atlanta International Airport in 2006. This paper describes an abbreviated ASSAP architecture in detail and presents simulation results used to formulate the subsystem standards.

NextGen trajectory approaches with air-air negotiation protocol

“…This avionics system includes a negotiation protocol to dynamically decide upon time-based operations. This proposal is based on previous works in the area of Aircraft Separation Assurance System (ASAS) [4] and the preference trajectories paradigm (free flight). We use a previously existing air-air negotiation protocol as a component of the on board automatic system for 4.A.5-2 supporting pilots with self-spacing flight operation for merging and in-trail separation in terminal areas.…”