Spatial diversity for relative position tracking
First Claim
1. A vehicle comprising:
- at least three spatially separated receiver antennae configured to receive radio frequency (RF) signals from one or more RF-transmitting antennae coupled to an object;
receiver circuitry coupled to the at least three spatially separated receiver antennae to acquire the RF signals received by the at least three spatially separated receiver antennae and to determine timing information from the acquired RF signals;
memory storing information related to fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae;
a processor coupled to
1) the memory to access the stored information related to the fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae, and
2) the receiver circuitry to receive the timing information determined from the RF signals received by the at least three spatially separated receiver antennae, the processor being configured to determine a relative position of the vehicle with respect to the one or more RF-transmitting antennae based on the stored information related to the fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae and on the timing information determined by the receiver circuitry; and
a control system configured to control operation of the vehicle in response to the relative position of the vehicle with respect to the one or more RF-transmitting antennae determined by the processor.
2 Assignments
0 Petitions
Accused Products
Abstract
Vehicles and methods of navigating vehicles comprise at least three receiver antennae configured to receive radio frequency (RF) signals from one or more RF-transmitting antennae coupled to an object, receiver circuitry coupled to the receiver antennae to acquire the RF signals and to determine timing information from the acquired RF signals, memory storing information related to fixed distances between each receiver antenna and each other receiver antenna, a processor configured to determine a relative position of the vehicle with respect to the one or more RF-transmitting antennae based on the stored information related to the fixed distances between each receiver antenna and each other receiver antenna and on the timing information determined by the receiver circuitry, and a control system configured to control operation of the vehicle in response to the relative position of the vehicle with respect to the one or more RF-transmitting antennae determined by the processor.
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Citations
19 Claims
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1. A vehicle comprising:
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at least three spatially separated receiver antennae configured to receive radio frequency (RF) signals from one or more RF-transmitting antennae coupled to an object; receiver circuitry coupled to the at least three spatially separated receiver antennae to acquire the RF signals received by the at least three spatially separated receiver antennae and to determine timing information from the acquired RF signals; memory storing information related to fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae; a processor coupled to
1) the memory to access the stored information related to the fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae, and
2) the receiver circuitry to receive the timing information determined from the RF signals received by the at least three spatially separated receiver antennae, the processor being configured to determine a relative position of the vehicle with respect to the one or more RF-transmitting antennae based on the stored information related to the fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae and on the timing information determined by the receiver circuitry; anda control system configured to control operation of the vehicle in response to the relative position of the vehicle with respect to the one or more RF-transmitting antennae determined by the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A network comprising:
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at least one object coupled to one or more radio frequency (RF) transmitting antennae; a plurality of vehicles, each vehicle comprising; at least one RF-transmitting antenna that transmits RF signals; at least three spatially separated receiver antennae configured to receive RF signals transmitted by the one or more RF-transmitting antennae coupled to the at least one object and by the at least one RF-transmitting antenna of one or more other vehicles of the plurality of vehicles; receiver circuitry coupled to the at least three spatially separated receiver antennae to acquire the RF signals received by the at least three spatially separated receiver antennae and to determine timing information from the acquired RF signals; memory storing information related to fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae; a processor coupled to
1) the memory to access the stored information related to the fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae, and
2) the receiver circuitry to receive the timing information determined from the RF signals received by the at least three spatially separated receiver antennae, the processor being configured to determine a relative position of the vehicle with respect to each RF-transmitting antenna from which RF signals are received based on the stored information related to the fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae and on the timing information determined by the receiver circuitry; anda control system configured to control operation of the vehicle in response to the relative position of the vehicle, determined by the processor, with respect to each RF-transmitting antenna from which RF signals are received.
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19. A method of controlling a vehicle comprising:
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receiving, by at least three spatially separated receiver antennae coupled to the vehicle, radio frequency (RF) signals from one or more RF-transmitting antennae coupled to an object; determining timing information from the received RF signals; storing information related to fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae; determining a relative position of the vehicle with respect to the one or more RF-transmitting antennae based on the stored information related to the fixed distances between each receiver antenna and each other receiver antenna of the at least three spatially separated receiver antennae and on the determined timing information determined; and controlling operation of the vehicle in response to the determined relative position of the vehicle with respect to the one or more RF-transmitting antennae.
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Specification