Beam Steering

The method of steering the main lobe of a transducer to a certain direction. Three typical means of beam steering include:

  • Placement of a reflector (e.g., a cone or parabola) behind an acoustic source.
  • Phasing of narrowband signals emitted or received by an array of transducers or transducer elements.
  • Shifting replicas of signals emitted or received by individual elements in such a way as to maximize the acoustic response in some direction.

Can also refer to processing of data from the elements of an array to reject information from a particular direction.

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Subjects: Physics