Kalman filter for indoor positioning
AssigneeTexas Instruments Incorporated
InventorMohamed Farouk Mansour
Life of this patent
Estimating the term…
Abstract
A position estimation method for indoor positioning includes filtering an initial position estimate that includes a corresponding covariance that reflects the quality of the geometry of the reference points and a previous initial position estimate that includes a corresponding covariance that reflects the quality of the geometry of the reference points by a Kalman filter to generate an updated previous position estimate, analyzing the updated previous position estimate to determine if the value is outside of a range, and constraining the updated previous position estimate based on the value being outside of the range.
Claims6
A position estimation method, comprising:
- filtering, by a Kalman filter, an initial position estimate that includes a corresponding covariance and a previous initial position estimate that includes a corresponding covariance to generate an updated previous position estimate;
- analyzing the updated previous position estimate to determine if the updated previous position estimate is outside of a range;
- and
- constraining the updated previous position estimate based on the value being outside of the range.
Dependencies are inferred from the claim text.