| CPC G01S 13/878 (2013.01) [G01S 13/726 (2013.01)] | 20 Claims |

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1. A method comprising:
determining, by a computing device of a first participant, a difference between a reported position of a second participant and characteristics of a signal received by the first participant containing the reported position;
in response to the difference being below a first threshold, transmitting, by the computing device of the first participant, the reported position of the second participant to a third participant; and
in response to the difference being above the first threshold, transmitting, by the computing device of the first participant, a refined position for the second participant to the third participant.
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