Sonar technology and hydroacoustics
Sonar technology systems and hydroacoustics are used for measuring and locating tasks, especially in the maritime field. For many years, the development of high-resolution sonar systems was motivated mainly by military requirements (see also, “Historical Review”) but now it is being increasingly extended by civil applications, including recreational ones.
Apart from classical submarine-locating systems sonar is used, for example, for finding schools of fish, for subsurface relief surveying in shallow waters, underwater communication, etc.
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