User equipment navigation solution with position determination of a navigation signal reflector
First Claim
1. A method of resolving a navigation solution of a global positioning system (GPS) enabled receiver, the method comprising:
- receiving direct navigation signals transmitted from one or more GPS platforms;
determining receiver range measurements from the direct navigation signals received via direct signal paths from the one or more GPS platforms;
resolving a navigation solution of the GPS-enabled receiver from the receiver range measurements to determine a position of the GPS-enabled receiver;
determining reflector range measurements from the reflected navigation signals received via reflected signal paths from isotropic reflector; and
resolving a longitudinal, lateral, and vertical position of the isotropic reflector from the reflector range measurements.
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Abstract
User equipment navigation solution with position determination of a navigation signal reflector methods and systems are described. In an embodiment, navigation signals transmitted from global positioning system (GPS) platform(s) can be received at a GPS-enabled receiver as direct navigation signals and reflected navigation signals. The direct navigation signals can then be isolated from the reflected navigation signals. Receiver range measurements can be determined from the direct navigation signals which are received via direct signal paths from the GPS platform(s), and a navigation solution of the GPS-enabled receiver can then be resolved from the receiver range measurements. Similarly, reflector range measurements can be determined from the reflected navigation signals which are received via reflected signal paths from a signal reflector, and a position of the signal reflector can then be resolved from the reflector range measurements at the GPS-enabled receiver.
19 Citations
16 Claims
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1. A method of resolving a navigation solution of a global positioning system (GPS) enabled receiver, the method comprising:
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receiving direct navigation signals transmitted from one or more GPS platforms; determining receiver range measurements from the direct navigation signals received via direct signal paths from the one or more GPS platforms; resolving a navigation solution of the GPS-enabled receiver from the receiver range measurements to determine a position of the GPS-enabled receiver; determining reflector range measurements from the reflected navigation signals received via reflected signal paths from isotropic reflector; and resolving a longitudinal, lateral, and vertical position of the isotropic reflector from the reflector range measurements. - View Dependent Claims (2, 3, 4, 5, 16)
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6. A global positioning system (GPS), comprising:
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a GPS enabled receiver to; receive direct navigation signals transmitted from one or more GPS platforms; and receive reflected navigation signals transmitted from the one or more GPS platforms; and a navigation signal processing module to; isolate the direct navigation signals from the reflected navigation signals; determine receiver range measurements from the isolated direct navigation signals to resolve a navigation solution of the GPS-enabled receiver; and determine reflector range measurements from the isolated reflected navigation signals to resolve a position of a signal reflector, the reflected navigation signals received via reflected signal paths from the signal reflector. - View Dependent Claims (7, 8, 9, 10, 11)
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12. One or more computer readable media comprising encoded computer executable instructions that, when executed, direct a GPS enabled receiver to:
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receive a first set of navigation signals transmitted from one or more global positioning system (GPS) platforms; receive a second set of navigation signals transmitted from the one or more GPS platforms and reflected from a substantially isotropic reflector positioned at an unknown location; resolve a navigation solution of the GPS enabled receiver from the direct navigation signals that are received via direct signal paths from the one or more GPS platforms to determine a location of the GPS-enabled receiver; and resolve a position of a substantially isotropic reflector from the received reflected navigation signals. - View Dependent Claims (13, 14, 15)
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Specification