Showing papers on "Collision avoidance system published in 1969"

Collision avoidance system which compares relative velocity vector magnitude with range between two craft

Abstract: A collision avoidance system utilizes only the parameters of course, velocity and range for surface craft and only the parameters of course, velocity, range, and altitude for aircraft. Time to collision is considered equal to the time to the point of nearest approach when the range between two craft falls below a predetermined value. Range to the point of closest approach is not required to determine that a collision hazard exists. No directional antennae are utilized.