| 摘要 |
To avoid collision between aircraft flying in the same general area, each aircraft has individually assigned to it a transmission interval or time slot for sending out data relating to its altitude, course and speed, successive time slots being distinguished by different carrier frequencies. From the received data, each aircraft determines the relative positions and speeds of other aircraft communicating with it. Upon finding itself on a collision or near-collision course with another aircraft, an aircraft initiates an accelerated exchange of information with that other aircraft to determine the passing distance thereof and, if necessary, to take collision-avoiding action.
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