G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 15/96 (2006.01)
Patent
CA 2611205
Areal population density and detailed behavior of fish schools and their interaction are continuously monitored over continental-shelf-scale areas spanning thousands of square kilometers by ocean acoustic-waveguide remote sensing. In some embodiments, the capacity of certain geophysical environments, such as contininental shelves, islands, etc. to behave as acoustic waveguides is utilized; sound propagates over long ranges via trapped modes that suffer only cylindrical spreading loss, rather than the spherical loss suffered in conventional sonar approaches.
La présente invention concerne la surveillance en continu de la densité des populations d'une zone et du comportement détaillé des bancs de poissons et de leurs interaction sur des zones à l'échelle du plateau continental sur des milliers de kilomètres carrés par télédétection océanique par guides d'ondes acoustiques. Dans certains modes de réalisation, on utilise la capacité de certains environnements géophysiques tels que les plateaux continentaux, les îles, etc., à se comporter en guides d'ondes acoustiques. Le son de propage sur de longues distances via des modes piégés qui ne soufrent que de pertes d'expansion cylindriques et non sphériques comme pour les techniques sonar conventionnelles.
Makris Nicholas C.
Ratilal Purnima
Massachusetts Institute Of Technology
Smart & Biggar
LandOfFree
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