Patent ID: 8963775
Filing Date: 2015-02-24
Classification: G01S

Abstract:
1. A method of determining a position of a radio signal transmitter comprising; determining a type of radio signal being transmitted from the radio signal transmitter by analyzing the radio signal for radio signal characteristics; and correlating different sets of information in a way dependent on the determined radio signal type in order to determine the position of the radio signal transmitter; wherein each set of information corresponds to a different relative position of at least one receiver to the transmitter, each set of information comprising: radio signal data derived from radio signals received by the at least one receiver from the transmitter at each respective relative position; and positioning data containing information about a position of the at least one receiver at each respective relative position, wherein the method further comprises: assessing dynamics of a platform on which the radio signal transmitter is supported, and correlating the different sets of information in a way dependent on the determined dynamics of the platform, and wherein determining the type of radio signal being transmitted from the radio signal transmitter comprises determining whether the type of radio signal originates from a movable radio signal source or a stationary, immovable radio signal source, and when the type of radio signal originates from a movable radio signal source, repeating the correlating of different sets of information to track the mobile radio signal source.