Adaptive anchor selection and target position estimation

A method for target position estimation, the method comprising:

• calculating, by a processor-based system, initial estimated positions of a target transmitter, each of the initial estimated positions based on an angle of arrival (AoA) estimate received from a corresponding locator;
• generating, by the processor-based system, an error projection associated with each of the initial estimated positions, the error projection based on azimuth and elevation error characteristics of the locator associated with the initial estimated position;
• creating, by the processor-based system, a select group of the locators based on overlaps of the error projections, the select group of locators comprising a subset of the locators;
• and
• calculating, by the processor-based system, a refined estimate of the position of the target transmitter based on the initial estimated positions associated with the select group of locators.

A computer program product including one or more non-transitory machine-readable mediums encoded with instructions that when executed by one or more processors cause a process to be carried out for target position estimation, the process comprising:

• calculating initial estimated positions of a target transmitter, each of the initial estimated positions based on an angle of arrival (AoA) estimate received from a corresponding locator;
• generating an error projection associated with each of the initial estimated positions, the error projection based on azimuth and elevation error characteristics of the locator associated with the initial estimated position;
• creating a select group of the locators based on overlaps of the error projections, the select group of locators comprising a subset of the locators;
• and
• calculating a refined estimate of the position of the target transmitter based on the initial estimated positions associated with the select group of locators.