| 摘要 |
PURPOSE:To obtain a device for detecting an underwater target for submerging under a deep sea by applying a principle of a holography, and detecting the exhaust heat which follows up cooling of a nuclear reactor of a nuclear submarine. CONSTITUTION:A laser pulse 10 generated from a pulse laser generating device 1 is split into an information light 1 and reference light 12 by a light beam splitter 2, and the information light 11 is converted to suitable luminous fluxes 15, 15' by a transmitting/receiving optical system and radiated to the sea surface 9. Reflected/scattered laser beams 16, 16' from the sea surface 9 are received by the transmitting/receiving optical system 3 and superposed on the reference light 12 as a modulated light 13 containing the information of exhaust heat 14, 14' and recorded in an interference fringe recorder 4, and reproduced as an image by a reproducing device 5. The reproduced image is processed by an image processor 6 and whether the exhaust heat 14, 14' exists on the sea surface or not, its characteristic, etc. are extracted and displayed, and a nuclear submarine 8 is detected. In such a way, a target in a deep sea can also be detected.
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