| 摘要 |
The invention relates to a method for locating a submerged object, wherein a sound transmitter emits a sound pulse, the sound pulse is reflected off the object to be located and is received by a sound receiver that is placed at a geographical distance from the sound transmitter; the sound pulse contains encrypted information on the transmission time of the sound pulse and the transmission position of the sound transmitter, and said encrypted information is decrypted from the sound pulse by the sound receiver in order for the position of the object to be determined. |
