Multibeam Sonar Theory of Operation
Multibeam Sonar Theory of Operation
Multibeam Sonar Theory of Operation
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<strong>Multibeam</strong> <strong>Sonar</strong> <strong>Theory</strong> <strong>of</strong> <strong>Operation</strong> Detection Processing and Range Calculations<br />
Figure Chapter 4 - -17: Sample Predefined Beam Encompassing a Subset <strong>of</strong> Hits<br />
This process has two steps:<br />
1. A mean and standard deviation <strong>of</strong> the TOAs <strong>of</strong> all enclosed hits is computed. These are used<br />
to compute a statistical “envelope” in time, centered at the mean time t MEAN with a width twice<br />
that <strong>of</strong> the standard deviation t σ (see Figure Chapter 4 - -18). Hits within the beam that fall<br />
outside this envelope are discarded.<br />
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