Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With time interval measuring means
Reexamination Certificate
2008-05-13
2008-05-13
Lobo, Ian J (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With time interval measuring means
C367S129000, C367S906000
Reexamination Certificate
active
07372772
ABSTRACT:
Systems and methods for compensation of sensor degradation in multi-shooter detection systems are described. In such systems, shooter position and trajectory can be estimated precisely from the shockwaves produced at the plurality of sensors by the incoming shots. However, sensor positions can shift and the performance of some sensors may degrade for various reasons. To compensate for sensor degradation that may occur over the life of a long-deployed system, the shooter estimation algorithms are dynamically adapted by performing a least-squares regression analysis of the shockwave arrival times to obtain a time residual for each shot, observing multiple shots, and weighting the individual contributions of the sensors as a function of the time residuals for the multiple shots.
REFERENCES:
patent: 5544129 (1996-08-01), McNelis
patent: 5920522 (1999-07-01), Levanon
patent: 5973998 (1999-10-01), Showen et al.
patent: 6178141 (2001-01-01), Duckworth et al.
patent: 6563763 (2003-05-01), McNelism
patent: 6847587 (2005-01-01), Patterson et al.
patent: 7126877 (2006-10-01), Barger et al.
patent: 7139222 (2006-11-01), Baxter et al.
patent: 7190633 (2007-03-01), Brinn et al.
patent: 2004/0100868 (2004-05-01), Patterson et al.
patent: 2006/0044941 (2006-03-01), Barger et al.
patent: 2006/0256660 (2006-11-01), Berger
patent: 2007/0030763 (2007-02-01), Barger et al.
patent: 2007/0237030 (2007-10-01), Barger et al.
Office Action dated Aug. 4, 2006, U.S. Appl. No. 10/925,414.
Office Action dated Mar. 7, 2007, U.S. Appl. No. 10/925,414.
U.S. Appl. No. 11/904,452, filed Sep. 27, 2007, Brinn et al.
Maroti et al., “Shooter Localization in Urban Terrain”, Computer, 37:8, Aug. 2004, pp. 60-61.
Danicki, “The shock wave-based acoustic sniper localization,” Nonlinear Analysis, 65 (2006), pp. 956-962.
Barger James E.
Brinn Marshall Seth
Milligan Stephen D.
BBN Technologies Corp.
Lobo Ian J
Ropes & Gray LLP
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