Back Leurre anti-sonar French ソナーデコイ Japanese Имитатор подводной лодки Russian Akustična vaba Slovenian 声响诱饵 Chinese
A sonar decoy is a device for decoying sonar. One may be released from a submarine or a surface vessel. A decoy acts as false targets for human operators and/or sonar-homing weapons such as acoustic torpedoes. Many count as a type of torpedo defence.