Abstract
Reverberation equations have customarily been derived only for a source and receiver at the same point as in the familiar sonar situation. However, the study of interference between two similar active acoustic systems requires a knowledge of the characteristics of the reverberation received at a point separated from the source. A simplified expression for volume reverberation is derived for directional projectors oriented in the same direction but displaced along the beam axis. Reverberation decay curves are presented with source-to-receiver separation as a parameter. The variation of the volume reverberation index, Jv (usually considered a constant), is also discussed.
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