DIRECTIONAL PRUNING OF TRANSMITTERS TO IMPROVE POSITION DETERMINATION
First Claim
Patent Images
1. A computer-implemented method for estimating a position of a receiver using a network of transmitters, the method comprising:
- identifying a set of transmitters from the network of transmitters;
associating each transmitter from the set of transmitters with at least one of three or more groups of transmitters based on geographic information associated with of that transmitter; and
determining an estimated position of the receiver using at least one range measurement corresponding to at least one transmitter in each of the three or more groups that includes a transmitter from the set of transmitters.
3 Assignments
0 Petitions
Accused Products
Abstract
Described are systems and methods for estimating a position of receiver using ranging signals from different regions in a network of transmitters. In some embodiments, each ranging signal that exceeds a quality criterion is assigned to one of several defined regions based on a characteristic of that ranging signal. A maximum number of ranging signals per region may be selected and used during trilateration.
-
Citations
13 Claims
-
1. A computer-implemented method for estimating a position of a receiver using a network of transmitters, the method comprising:
-
identifying a set of transmitters from the network of transmitters; associating each transmitter from the set of transmitters with at least one of three or more groups of transmitters based on geographic information associated with of that transmitter; and determining an estimated position of the receiver using at least one range measurement corresponding to at least one transmitter in each of the three or more groups that includes a transmitter from the set of transmitters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification