Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With time interval measuring means
Reexamination Certificate
2006-10-13
2008-08-05
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With time interval measuring means
C367S124000, C367S906000
Reexamination Certificate
active
07408840
ABSTRACT:
Systems and methods for determining and disambiguating the location of the shooter of supersonic projectiles based on shockwave-only signals are described. Using several spaced sensors, an initial portion of the shockwave-only signals is sensed to determine Time-Differences-Of-Arrival (TDOA) for the sensor pairs. The resulting TDOAs are used to determine the gradient of curvature of the shockwave wavefront on the sensors. The gradient of curvature is then used to determine the disambiguated projectile trajectory.
REFERENCES:
patent: 4827411 (1989-05-01), Arrowood et al.
patent: 4970698 (1990-11-01), Dumestre, III
patent: 5093824 (1992-03-01), Coan et al.
patent: 5241518 (1993-08-01), McNelis et al.
patent: 5243592 (1993-09-01), Perlman et al.
patent: 5280457 (1994-01-01), Figueroa et al.
patent: 5346210 (1994-09-01), Utke et al.
patent: 5544129 (1996-08-01), McNelis
patent: 5742820 (1998-04-01), Perlman et al.
patent: 5777948 (1998-07-01), Ferkinhoff et al.
patent: 5781505 (1998-07-01), Rowland
patent: 5850592 (1998-12-01), Ramanathan
patent: 5878095 (1999-03-01), Kainulainen
patent: 5881246 (1999-03-01), Crawley et al.
patent: 5912862 (1999-06-01), Gustavsen et al.
patent: 5913921 (1999-06-01), Tosey et al.
patent: 5930202 (1999-07-01), Duckworth et al.
patent: 5973998 (1999-10-01), Showen et al.
patent: 6055523 (2000-04-01), Hillis
patent: 6088622 (2000-07-01), Dollin et al.
patent: 6178141 (2001-01-01), Duckworth et al.
patent: 6198694 (2001-03-01), Kroling et al.
patent: 6349091 (2002-02-01), Li
patent: 6385174 (2002-05-01), Li
patent: 6418299 (2002-07-01), Ramanathan
patent: 6470329 (2002-10-01), Livschitz
patent: 6487516 (2002-11-01), Amorai-Moriya
patent: 6563763 (2003-05-01), McNelis
patent: 6745224 (2004-06-01), D'Souza et al.
patent: 6847587 (2005-01-01), Patterson et al.
patent: 7139222 (2006-11-01), Baxter et al.
patent: 2002/0029214 (2002-03-01), Yianilos et al.
patent: 2004/0100868 (2004-05-01), Patterson, Jr. et al.
patent: 2006/0256660 (2006-11-01), Berger
patent: 0447725 (1991-09-01), None
patent: 2 015 127 (1979-09-01), None
patent: WO 0137483 (2001-05-01), None
patent: WO 02/082097 (2002-10-01), None
U.S. Appl. No. 10/752,988, filed Jan. 7, 2004; Joseph Jacob Weinstein et al; Systems and Methods for Constructing a Virtual Model of a Multi-Hop, Multi-Access Network; 81 pages.
“Packet Radio Routing,” Gregory S. Lauer, Ch. 11, “Routing in Communications Networks,” ed. Martha Steenstrup, Prentice Hall, pp. 352-396 (1995).
“The Organization of Computer Resources into a Packet Radio Network,” R.E. Kahn, IEEE Trans. on Communications. COM-25:1, 169-78 (Jan. 1977).
“The DARPA Packet Radio Network Protocols,” J. Jubin et al., Proc. of the IEEE, 75:1, 21-32 (Jan. 1987).
“Analysis of Routing Strategies for Packet Radio Networks,” J.J. Garcia Lune Aceves et al., Proc. of the IEEE INFOCOM '85, Washington, DC, 292-302 (185).
“Packet Radio Network Routing Algorithms: A Survey,” J.J. Hahn et al., IEEE Communications Magazine, 22:11, 41-7 (Nov. 1984).
“Link-State Routing,” John Moy, Ch. 5, “Routing in Communications Networks,” ed. Martha Steenstrup, Prentice Hall, pp. 136-157 (1995).
U.S. Appl. No. 10/797,030, filed Mar. 11, 2004; Joseph Jacob Weinstein et al.; Systems and Methods for Synchronizing Multiple Copies of a Database Using Database Digest; 49 pages.
U.S. Appl. No. 09/546,052, filed Apr. 10, 2000; Joseph Jacob Weinstein et al.; Radio Network Routing Apparatus; 31 pages. Under examination by Toan D. Nguyen.
Pecina, J.N., “Unmanned Navigation with a Novel Laser and a Smart Software,” Aerospace Conference, 2003. Proceedings. 2003 IEEE, vol. 1, Mar. 8-15, 2003 pp. 305-312.
Pierce, Allan D., “Nonlinear Effects in Sound Propagation,” Acoustics, McGraw-Hill Book Company, 1981, pp. 611-614.
Kalyanmoy Deb, “Multi-Objective Optimization Using Evolutionary Algorithms,” John Wiley & Sons, Ltd., (2001), pp. 85-101.
Ledeczi et al, “Multiple Simultaneous Acoustic Source Localization in Urban Terrain,” Institute for Software Integrated Systems, pp. 491-496, ISBN# 0-7803-9201-9 or Information Processing in Sensor Networks, 2005, IPSN 2005. Fourth International Symposium on Publication Date: Apr. 15, 2005. On pp. 491-496, ISBN: 0-7803-9201-9 Inspect Accession No. 8613383 Digital Object Identifier 10.1109/IPSN.2005.1440982.
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.
Mullen Richard J.
BBN Technologies Corp.
Lobo Ian J.
Ropes & Gray LLP
LandOfFree
System and method for disambiguating shooter locations does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for disambiguating shooter locations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for disambiguating shooter locations will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4012533