CALIBRATION OF A LOCATION SYSTEM
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Accused Products
Abstract
A location system comprising a plurality of base units for enabling the locating of a device by means of one or more location signals communicated between the device and the base units and signal processing equipment for: i. determining the location of the device in dependence on the manner in which the location signal(s) is/are received and ii. deriving calibration data for calibrating the system in dependence on the manner in which the location signal(s) is/are received.
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Citations
44 Claims
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1-23. -23. (canceled)
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24. A location system comprising:
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a plurality of base units for enabling the locating of a device by means of one or more location signals communicated between the device and the base units; and signal processing equipment for; i. determining the location of the device in dependence on the time-difference-of-arrival and angle-of-arrival of the location signal(s) as received by the base units; and ii. deriving calibration data for calibrating the system in dependence on the time-difference-of-arrival and angle-of-arrival of the location signal(s) as received by the base units, the calibration data being determined independently of any reference timing generator external to the base units and the device, and the position thereof. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method for locating a device in a location system comprising the device and a plurality of base units for enabling the locating of the device, the method comprising the steps of:
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communicating one or more location signals between the device and the base units; determining the location of the device in dependence on the time-difference-of-arrival and angle-of-arrival of the location signal(s) as received by the base units; and deriving calibration data for calibrating the system in dependence on the time-difference-of-arrival and angle-of-arrival of the location signal(s) as received by the base units, the calibration data being determined independently of any reference timing generator external to the base units and the device, and the position thereof. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification