초록 ▼

The present invention relates to a method of determining the location of a target. The method includes initializing a set of base stations to determine their location relative to each other. At the target, the time of arrival of at least one signal from each of the plurality of base stations is meas

The present invention relates to a method of determining the location of a target. The method includes initializing a set of base stations to determine their location relative to each other. At the target, the time of arrival of at least one signal from each of the plurality of base stations is measured. From this, the location of the target relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.

대표청구항 ▼

What is claimed is: 1. A target comprising:a transceiver for transmitting and receiving signals;a central processing unit for performing operations;a power source for powering the transceiver and the central processing unit; andsoftware executed by the central processing unit for diagnosing and mana

What is claimed is: 1. A target comprising:a transceiver for transmitting and receiving signals;a central processing unit for performing operations;a power source for powering the transceiver and the central processing unit; andsoftware executed by the central processing unit for diagnosing and managing the target, and for calculating position of the target using range measurements to and between a plurality of base stations; wherein the plurality of base stations is initialized to determine their relative locations to each other wherein, during initializing, a first base station of the plurality of base stations sends an ultra wideband signal to a second base station and a third base station of the plurality of base stations to determine a distance between the first base station and the second base station and a distance between the first base station and the third base station and wherein the second base station sends an ultra wideband signal to the third base station to determine a distance between the second base station and the third base station;wherein the target determines range measurements by measuring the time of arrival or the time difference of arrival of the signals from the plurality of base stations, and the target calculates directly the location of the target relative to the plurality of base stations.