Dolphins inspire a better kind of sonar

By measuring the differences between emitted sound pulses and their echoes sonar is able to detect and identify targets such as reefs, wrecks, submarines and fish shoals. However, standard sonar has limitations in shallow water because bubble clouds, which result from breaking waves or other causes, can scatter sound and clutter the sonar image. Inspired by the exceptional sonar capabilities of dolphins, scientists have now developed a new underwater device that can outperform standard sonar and detect objects through bubble clouds.

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