US Patent 12013471 Precise outdoor distance, shape, and land area measurement with wireless devices

A wireless device determines a biased wireless device position and a receiver clock error for a plurality of satellites, the biased wireless device position and the receiver clock error being associated with a biased ambiguity. The wireless device calculates, upon determining the biased wireless device position and the receiver clock error, the biased ambiguity for each of the plurality of satellites. The wireless device applies the biased ambiguity to a carrier phase measurement for each of the plurality of satellites, the carrier phase measurement being associated with the receiver clock error and an absolute location of the wireless device. The wireless device determines, upon applying the biased ambiguity to the carrier phase measurement for each of the plurality of satellites, the absolute location of the wireless device based on the biased ambiguity for all of the plurality of satellites.