GPS denial device detection and location system
First Claim
1. A system for detecting a GPS denial device, comprising:
- (a) a plurality of GPS receivers for receiving radio signals from GPS satellites, wherein each of the plurality of GPS receivers determines parameters based on the signals received from the GPS satellites, the parameters including positional parameters;
(b) a plurality of remote sensor interfaces, each remote sensor interface of the plurality of remote sensor interfaces being associated with a respective GPS receiver of the plurality of GPS receivers such that each remote sensor interface extracts the GPS parameters from a respective GPS receiver, wherein the plurality of remote sensor interfaces are communication nodes in an ad hoc wireless network;
(c) a gateway, serving as a communication node in the ad hoc wireless network, that receives the extracted GPS parameters from one or more of the plurality of remote sensor interfaces; and
(d) a computer management system, disposed in communication with the gateway, that receives the extracted GPS parameters from the gateway and compares the determined GPS parameters with historical GPS parameters for the plurality of GPS receivers to detect whether an active GPS denial device is present in the vicinity of the system.
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Accused Products
Abstract
A system for detecting a GPS denial device includes a plurality of GPS receivers, a plurality of remote sensor interfaces, a gateway, and a computer management system. Each of the plurality of GPS receivers determines positional parameters based on the signals received from the GPS satellites. Each remote sensor interface is associated with a respective GPS receiver such that each remote sensor interface extracts the GPS parameters from a respective GPS receiver. The plurality of remote sensor interfaces and the gateway are communication nodes in an ad hoc wireless network. The gateway receives the extracted GPS parameters from the remote sensor interfaces. The computer management system receives the extracted GPS parameters from the gateway and compares the determined GPS parameters with historical GPS parameters for the plurality of GPS receivers to detect whether an active GPS denial device is present in the vicinity of the system.
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Citations
33 Claims
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1. A system for detecting a GPS denial device, comprising:
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(a) a plurality of GPS receivers for receiving radio signals from GPS satellites, wherein each of the plurality of GPS receivers determines parameters based on the signals received from the GPS satellites, the parameters including positional parameters; (b) a plurality of remote sensor interfaces, each remote sensor interface of the plurality of remote sensor interfaces being associated with a respective GPS receiver of the plurality of GPS receivers such that each remote sensor interface extracts the GPS parameters from a respective GPS receiver, wherein the plurality of remote sensor interfaces are communication nodes in an ad hoc wireless network; (c) a gateway, serving as a communication node in the ad hoc wireless network, that receives the extracted GPS parameters from one or more of the plurality of remote sensor interfaces; and (d) a computer management system, disposed in communication with the gateway, that receives the extracted GPS parameters from the gateway and compares the determined GPS parameters with historical GPS parameters for the plurality of GPS receivers to detect whether an active GPS denial device is present in the vicinity of the system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for detecting a GPS denial device, comprising:
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(a) receiving radio signals from GPS satellites; (b) determining GPS parameters based on the received radio signals; (c) transmitting the parameters; and (d) comparing determined GPS parameters to historical GPS parameters to detect the presence of a GPS denial device. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. A method of determining the location of a GPS denial device, comprising:
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(a) in an area of interest, deploying a plurality of GPS receivers, each interfaced with a respective remote sensor interface, the remote sensor interfaces being communication nodes in an ad hoc wireless network; (b) relaying GPS parameters from the plurality of GPS receivers to a computer management system via the ad hoc wireless network; (c) assessing the relative accuracy of GPS parameters determined by at least two of the plurality of GPS receivers, the accuracy of the GPS parameters of one of the at least two GPS receivers being significantly greater than the accuracy of the GPS parameters of the other of the at least two GPS receivers; and (d) determining at least an approximate direction, relative to one or more of the at least two GPS receivers, in which a GPS denial device is likely to be located, the determination being based on the relative accuracies of the at least two GPS receivers.
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Specification