An airborne collision avoidance system operates independently of ground-based equipment and air traffic control in warning pilots of the presence of other aircraft that may present a threat of collisi
The U.S. Air Force's F-16D Ground Collision Avoidance Technology (GCAT) aircraft
Small PCAS device for use in light aircraft.
A portable collision avoidance system is a proprietary aircraft collision avoidance system similar in function to traffic collision avoidance system. TCAS is the industry standard for commercial colli
Airborne collision avoidance system
…only with other aircraft that are equipped with functioning transponders with altitude reporting. Small PCAS device for use in light aircraft. a Portable Collision Avoidance System (PCAS) is a less expensive, passive version of TCAS designed for general aviation use. PCAS systems do not actively interrogate the transponders of…
Step 1: Transponder interrogation by ground RADAR or active systems (TCAS)
Step 2: Interrogation reply from transponder-equipped aircraft
Step 3: PCAS computation of aircraft 3-axis information