Patent ID: 8193981

Claim:
A geolocation system for providing coordinated sensing and precision geolocation of a target emitter, said system comprising: a transceiver subsystem, the transceiver subsystem configured for receiving a signal emitted by the target emitter, the signal being one of: a Very High Frequency (VHF) narrowband signal and an Ultra High Frequency (UHF) narrowband signal, the transceiver subsystem further configured for detecting and identifying the signal, the transceiver subsystem further configured for extracting a carrier phase of the signal; a satellite-based navigation system subsystem, the satellite-based navigation system subsystem configured for determining a position of the geolocation system relative to a position of a second geolocation system, the satellite-based navigation system subsystem being a Real Time Kinematic Global Positioning System (RTK GPS) subsystem; wherein the geolocation system communicates with the second geolocation system via a communication data link for: determining a communication signal time delay via signal carrier phase differencing for calculating a time difference between clocks of the first geolocation system and the second geolocation system and for configuring said satellite-based navigation system subsystem for monitoring subsequent variations in said time difference and geolocating the target emitter based on both the relative position information of the geolocation systems and the calculated time difference, and determining time difference of arrival (TDOA) via a carrier phase difference between measurements made by the geolocation system and the second geolocation system.