Patent ID: 8072382
Filing Date: 2011-12-06
Classification: G01S

Abstract:
1. A method of tracking vehicles, comprising the step of: receiving, from at least one moving sensor, a radio signal, time-stamping the radio signal from the at least one moving sensor at least one known location, to determine a time of arrival of the radio signal from the at least one moving sensor at the at least one known location, calculating, from the time of arrival of the radio signal from at least one the moving sensor, a position of the at least one moving sensor, receiving at the at least one moving sensor, a radio signal from a vehicle, time-stamping the radio signal from the vehicle at the at least one moving sensor, to determine a time of arrival of the radio signal from the vehicle at the at least one moving sensor, and calculating, from the time of arrival of the radio signal from the vehicle at the at least one the moving sensor, a position of the vehicle.