| 摘要 |
<p>The invention relates to a method for controlling the flightposition of an aerodyne (aerodynamic body whether self-propelled or projected) and/or for activating a useful load transported by the said aerodyne, and to an apparatus for the execution of the method. Sound-waves are radiated, preferably in the form of a beam, from at least one transmitting-receiving device arranged in the aerodyne. The sound-waves are reflected from the aerodyne's environment, for example from the surface of the earth. The reflected sound-waves are picked up by the receiving device and, after being converted into electrical signals, are further processed. The distance between the aerodyne and the surface of the earth, for example, can be determined by measuring the transit-time of the sound-waves. If the aerodyne deviates from a predetermined flight-path, control-surfaces are actuated by a control device for the purpose of correcting the flight-path. Moreover, the transmittingreceiving device, and the control device, may be used to bring the useful load, transported by the said aerodyne, into operation.</p> |
