Method and apparatus for finding a mobile radio terminal
First Claim
Patent Images
1. A method for directing a seeker to a target, the method including the steps of:
- (a) making one or more observations associated with the target (target observations); and
(b) generating a route based on the one or more observations and estimated error distributions of the one or more target observations.
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Abstract
A method and apparatus for finding a radio terminal (10) in a radio communications network. The method includes making observations of attributes of radio signals associated with the radio terminal (10) and generating a route for a seeker (20) to find the radio terminal (10), based on the observations and estimated error distributions of those observations. The route may be displayed over a topographical map to guide the seeker to the target.
73 Citations
67 Claims
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1. A method for directing a seeker to a target, the method including the steps of:
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(a) making one or more observations associated with the target (target observations); and
(b) generating a route based on the one or more observations and estimated error distributions of the one or more target observations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for directing a seeker to a target, the method including the steps of:
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(a) making one or more observations associated with the target (target observations); and
(b) generating a route based on the one or more observations and estimated error distributions of those target observations to provide likely locations of the target. - View Dependent Claims (29, 30, 31, 32, 33, 67)
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34. A method for directing a seeker to a target, the method including the steps of:
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(a) making one or more observations associated with the target (target observations);
(b) making one or more observations associated with the seeker (seeker observations); and
(c) generating a route based on a comparison of the one or more target observations and seeker observations and estimated error distributions of those one or more target and seeker observations. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method for directing a seeker to a target, the seeker able to receive signals directly from the target to provide direct target observations, the method including the steps of:
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(a) making one or more observations associated with the target (target observations);
(b) making one or more observations associated with the seeker (seeker observations); and
(c) generating a route based on a comparison of the one or more target observations, the seeker observations, the direct target observations and estimated error distributions of the at least one or more target and seeker observations. - View Dependent Claims (48, 49, 50, 52)
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51. A homing device for finding a target, the homing device including:
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a receiver for receiving signals surrounding the homing device and for measuring at least one selected attribute of those signals to produce homing device observations; and
an output for providing route information to a user to find the target;
whereinthe route information is determined by comparing the homing device observations with target observations derived from measuring at least one selected attributes of signals associated with the target and estimated error distributions of the at least one measured selected attribute of the signals associated with the target. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. A method for directing a seeker to a target, the method including the steps of:
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(a) calculating at least one probable location of the target; and
(b) generating a route to direct the seeker to a most probable of the at least one probable locations. - View Dependent Claims (65, 66)
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Specification