Sonar Research and Naval Warfare: 1914-1954

During both World War I and World War II, there were a number of informational tactics used by the Navy in order to gain ground on enemy troops. One of those was sonar research, because it provided them with knowledge they would not have otherwise had (Hackmann, 1984). Sonar is not perfect, but a great deal of work has gone into it since its creation, and that has helped it to become a more valuable tool for Naval operations. Sonar is used for navigation, but also for communication and the detection of objects, primarily underwater (Urick, 1983). There are two types of sonar: passive and active. In active sonar, pings are sent out to search for other objects (Hackmann, 1984). Passive sonar does not send out a signal, but only listens for the pings and signals of others (Hackmann, 1984). Both have their place,...
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