An Array Filtering Implementation of a Constant Beamwidth Acoustic Source
Monday, October 9, 1989 3:00 p.m. Jeff Harrell Department of Electrical Engineering The University of Texas at Austin For acoustic arrays (microphones or loudspeakers), the main beamwidth of the radiation pattern is determined by the spacing between the elements in terms of λ. Thus area coverage depends upon frequency. We have demonstrated that by controlling…