Patent ID: 7479925

Claim:
A collision avoidance system for an aircraft, the system comprising: a position-sensing device operable to determine a position of the aircraft; a communications system operable to support two-way communications between the aircraft and other aircraft; and a collision avoidance processor in communication with the position-sensing device and the communications system, the processor being configured to generate an advisory signal if the aircraft is determined to be positioned in a predefined first restricted zone positioned proximate to an airport runway and transmit the generated advisory signal to other similarly configured aircraft via the communications system thereby informing the other aircraft that a current instrument landing system (ILS) landing process may be affected, wherein the generated signal includes the determined positional information for the aircraft, wherein the collision avoidance processor receives signals emitted from another aircraft configured to emit signals when the other aircraft is positioned in a second restricted zone, wherein the transmitted signals include the determined positional information for the other aircraft, the collision avoidance processor compares positional information for the other aircraft to the determined positional information for the aircraft, determines if a collision hazard exists based on the comparison, and outputs an alert if it is determined that a collision hazard exists, the determined position information includes previously stored airport information, and the airport information includes at least one of runway information, taxiway information and approach to landing information.