Patent ID: 7574300

Claim:
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.