Data retrieval system in an aircraft with data stored during a flight and wirelessly transmitted to a ground system after landing at a frequency in the range of 50-330 GHz or 22-24 GHz.

摘要

An aircraft-side aircraft data retrieval system and method, comprising: a data storage device (14) located in a aircraft (2) adapted to, during a flight, store data acquired during the flight; and wireless apparatus (18) adapted to wirelessly transmit, after the aircraft (2) has landed, the stored data to a ground-side data retrieval system (6), at a frequency in a range selected from the following ranges: (i) 50-70 GHz, (ii) 110-120 GHz, (iii) 170-190 GHz, (iv) 310-330 GHz, (v) 22-24 GHz. for example in the range of 50-70 GHz or more particularly in the range of 55-65 GHz. The data storage device (14) may be located in an electromagnetically sealed bay (8) of the aircraft (2). An antenna (28) of the wireless apparatus (18) may be in a location, for example an undercarriage bay, that is in an open configuration, for a purpose other than retrieving the stored data, after the aircraft (2) has landed.