Elements of the ATA Collision Avoidance System

The Airline Air Traffic Control Committee CAS Technical Working Group has prepared a technical description of an airborne collision avoidance system. This ATA system is presented in block diagram form with the major functional blocks and signal flow discussed. The ``minimum system´´ discussed in the technical description and some anticipated optional additions to the air-carrier system are included in the discussion. A brief examination of some of the factors taken into account in the air-carrier power budget is also included.