| 摘要 |
FIELD: physics.SUBSTANCE: system comprises an acoustic signal source in the form of a laser placed on the surface of a water body, a hydrophone and a computer unit placed on the water surface and connected to the output of a receiving hydrophone. The acoustic signal source is a pulsed COgas laser, the radiation wavelength of which enables to generate a surface pressure pulse. The receiving hydrophone is broadband. The computer unit comprises, connected in series to the output of the receiving hydrophone, a segmentation module, a memory module, a switch, a comparison module and a decision (classification) module.EFFECT: enabling, based on change of echo signal segments compared to calibrated signals, detection and classification of different underwater objects in a controlled water body.1 dwg |
