An apparatus and method of determining the position location of a moving platform without using any GPS signals such as in the GPS-denial environment is disclosed. A direction finding system is employed to receive signals from a source of known position location and to compute the look angles. The look angles include the azimuth and the elevation information. The position location (e.g., latitude and longitude) of the moving platform is determined from the computed azimuth and elevation and the known position location of a remote signal source. There is no interactive communications required between the moving platform and the remote signal source. Consequently, the disclosed method is a passive approach employing a direction finding system to determine the position location of the moving platform from the received non-GPS signals. The position location obtained via this method is also applicable to GPS spoofing detection when the GPS is considered available.
Position Location for Navigation without GPS
2024-07-11
Patent
Electronic Resource
English
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