Method and system for locating and navigating a target

摘要

Techniques and methodologies are disclosed for minimizing inaccuracies in distance measurements and location determinations for autonomous vehicles or targets ranging to subsets of beacons. Such techniques and methodologies can be used to better control (e.g., navigate) an autonomous vehicle in an area and/or along a pathway, or trajectory.

主权项

1. A method for determining location of a target within an area having a plurality of beacons, comprising:
i) mapping the area into a plurality of cells; ii) associating one or more beacons in one or more subsets with one or more cells, wherein the one or more beacons are associated in the one or more subsets based upon at least confidence indicators for range measurements derived from one or more beacons for one or more cells; wherein the confidence indicators are at least in part determined using a combination of signal strength, signal quality, and error values for range measurements; and further wherein one or more beacons comprising a subset of beacons for a cell have larger confidence indicators than other beacons when ranging with the target in the cell; iii) ranging by the target to the one or more beacons in the one or more subsets associated with the one or more cells that target is located in to determine the location of the target.