Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With plurality of transducers
Reexamination Certificate
2005-01-25
2005-01-25
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With plurality of transducers
C367S119000, C367S124000, C367S130000
Reexamination Certificate
active
06847588
ABSTRACT:
A system and method for processing sonar information from an underwater hydrophone array, at frequencies having wavelengths less than two times a spacing between adjacent hydrophones. The method and system all for processing received underwater waveforms at high frequency limits beyond the mechanical limits of the array.
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Stergiopoulos, Stergios, et al. “Extended Towed Array Processing By an Overlap Correlator.” J. Acoust. Soc. Am. 86 (1), Jul. 1989.
Stergiopoulos, Stergios, et al. “Implementation of a Synthetic Aperture Processing Scheme In a Towed Array Sonar System.” J. Acoust. Soc. Am., vol. 95, No. 5, Pt. 2, May 1994.
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Kim, Keonwook, et al.; “Parallel Subspace Projection Beamforming For Autonomous, Passive Sonar Signal Processing.” High-performance Computing and Simulation (HCS).
Greene Paul
Wallace George
L-3 Communications Corporation
Lobo Ian J.
Roberts & Roberts, LLP
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