| 摘要 |
An aircraft collision potential warning system in which each aircraft includes means for transmitting pulse sequences, in pseudo random or random fashion and on a common frequency, which include aircraft identification and altitude information. Each aircraft further includes means to receive and process incoming signals from other aircraft and, on the basis of the altitude information, discard those signals not within a collision potential altitude range. If a signal is within a collision potential altitude range, interrogation is effected specifically to the identified signal source and the closing speed between the two aircraft is determined. If the rate of change of closing speed is below a set figure, a collision potential exists. |
