| 摘要 |
An aircraft (30) landing on a runway (28) and moving in a certain direction (36) is directed to exit the runway (28) on a particular exit taxiway (38). While on the runway (28), the aircraft (30) passes through a cone-shaped dispersion pattern (26) from a microwave transceiver (12). The transceiver (12) uses the Doppler principle. Another transceiver (12B) detects the aircraft (30) to ensure that it is travelling in the correct direction (40), and not in the forbidden direction (42). |
