SONAR SYSTEM AND METHOD

Abstract: a sonar system for transmitting and/or receiving sonar beams with a desired beam pattern or patterns. the system has a transducer having a linear array of transducer elements, which is driven by element driving signals to project a sonar beam and which generates element receive signals in response to a received sonar signal or sonic wave. a control unit controls the transducer and is configured to generate the element driving signals from a waveform signal based on a set of drive pattern weightings associated with a desired beam pattern to project from the transducer. the control unit is also configured to apply a set of receive pattern weightings to the element receive signals, the receive pattern weightings associated with a desired beam pattern to be detected or sensed received by the sonar system. the drive pattern weightings and receive pattern weightings comprise an amplitude component and polarity component.

Inventor(s): Remmer Cornelis Meijer, Eugene Stytsenko, Neil Llewellyn Scott

CPC Classification: G01S15/88 (RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES)

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