Patent ID: 9459344
Filing Date: 2016-10-04
CPC Classification: G01S

Claim Text:
1. A method for geolocation of a movable platform, said method comprising the steps of: operating a radar system mounted on said movable platform; measuring, with said radar system, a range from the movable platform to each of N satellites in Earth orbit, where N is greater than 2, and where N is the total number of range measurements made using the radar system; providing a memory having ephemerides data for each of said N satellites; obtaining from said memory on said movable platform, said ephemerides data for said satellites; establishing an initial estimated position of said movable platform; iteratively performing in a computer coupled to said memory and to said radar system, and using as input the N range measurements from the movable platform to the corresponding satellite, the steps of: determining the geolocation of the movable platform based on the estimated position in response to a determination that an iteration threshold has been reached.