The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2022
Filed:
Feb. 13, 2020
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Karl Berntorp, Cambridge, MA (US);
Marcus Greiff, Cambridge, MA (US);
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A system for tracking a state of a GNSS receiver uses a subset of the measurements of satellite signals selected to avoid the need for intermediate integers ambiguity estimate. The system selects the subset of measurements for the state tracking such that each measurement in the selected subset of measurements is formed by a weighted combination of multiple different measurements from the set of measurements. The system uses a probabilistic state estimator that tracks the state of the GNSS receiver using a probabilistic motion model subject to noise and a probabilistic measurement model relating the selected subset of the measurements of satellite signals to the current state of the receiver.