Patent ID: 8981992
Filing Date: 2015-03-17
Classification: G01S

Abstract:
1. A method of improving an estimated position/velocity/time calculation of a positioning device, comprising: determining, by the positioning device, whether one or more electronic signals representing an initial measurement for use in a position/velocity/time estimation filter is suspect based, at least in part, on one or more electronic signals representing at least one threshold; based on said initial measurement being determined to be suspect, establishing, by the positioning device, said initial measurement as one or more electronic signals representing a validated measurement by either: (1) re-weighting said initial measurement with a non-zero weight; and/or (2) one-sided isolating said initial measurement by one-sided de-weighting said initial measurement using different thresholds for positive and negative residuals; and storing an estimated position/velocity/time calculated or updated based on said validated measurement in a memory of the positioning device.