Title :
Motion compensated beamforming
Author :
Kraszewski, Raymond
Author_Institution :
Naval Undersea Warfare Center, Keyport, WA, USA
Abstract :
A sea-water range and test environment is constructed in which multiple acoustic sources are moving along varied trajectories. The aggregate acoustic signal is measured with a planar array consisting of 120 hydrophones. A system of independent tracking arrays is used to provide ancillary positional information for each source. When the information obtained from the tracking system is incorporated into the beamforming algorithm it is demonstrated that the extraction of each source can be achieved with the effect that source motion is removed from the signature estimate.
Keywords :
array signal processing; hydrophones; oceanographic techniques; underwater sound; acoustic signal; ancillary positional information; hydrophone; independent tracking array; motion compensated beamforming algorithm; multiple acoustic source; planar array; sea-water range; test environment; Acoustic measurements; Acoustic testing; Aggregates; Array signal processing; Data mining; Motion estimation; Planar arrays; Sonar equipment; Underwater acoustics; Underwater tracking;
Conference_Titel :
OCEANS 2003. Proceedings
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-933957-30-0
DOI :
10.1109/OCEANS.2003.178122
