Title :
Dynamic beamforming of a random acoustic array
Author_Institution :
University of California, San Diego, California
Abstract :
Design trade-offs in a programmable time-delay-and-sum digital beamformer built by MPL will be discussed. This dynamic beam-former permits the incorporation of slow changes in element positions and/or beam steering direction while the beamformer carries out the real-time formation of 1300 beams from 32 input sensors. The sensors are distributed in a random but known manner over an aperture diameter of up to 800 λ (at 400 Hz).
Keywords :
Acoustic arrays; Acoustic beams; Apertures; Array signal processing; Buffer storage; Delay effects; Frequency; Geometry; Sensor arrays; Signal processing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '80.
DOI :
10.1109/ICASSP.1980.1171007
