Using multiple receive antenna to determine the location of a transmitter with respect to a receiver in ultra wideband systems
First Claim
1. An apparatus for determining a location of at least an image of a transmitter transmitting a signal, the apparatus comprising:
- a plurality of at least three antennas, separated by respective known distances, configured to receive the signal, each of the plurality of antennas receiving the signal at a respective time; and
a processor coupled to the plurality of antennas, the processor configured to determine the location of at least the image of the transmitter responsive to at least the respective known distances and differences among the respective times.
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Accused Products
Abstract
An apparatus, system, method, and computer program product for determining a location of at least an image of a transmitter transmitting a signal is disclosed. The location of at least the image of the transmitter is determined by receiving a signal transmitted by the transmitter at at least three receiver antennas separated by known distances. Differences in time are then determined between receipt of the signal at one of the receiver antennas and at least two other receiver antennas. The known distances and the determined differences in receipt times are then processed to determine the location of the transmitter.
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Citations
32 Claims
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1. An apparatus for determining a location of at least an image of a transmitter transmitting a signal, the apparatus comprising:
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a plurality of at least three antennas, separated by respective known distances, configured to receive the signal, each of the plurality of antennas receiving the signal at a respective time; and
a processor coupled to the plurality of antennas, the processor configured to determine the location of at least the image of the transmitter responsive to at least the respective known distances and differences among the respective times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for determining a location of at least an image of a transmitter transmitting a signal, the apparatus comprising:
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a first antenna configured to receive the signal, the first antenna receiving the signal at a first time;
a second antenna configured to receive the signal, the second antenna separated from the first antenna by a first known distance and receiving the signal at a second time;
a third antenna configured to receive the signal, the third antenna separated from the first antenna by a second known distance and receiving the signal at a third time; and
a processor coupled to the first, second, and third antennas, the processor configured to determine the location of at least the image of the transmitter responsive to at least the first and second known distances and differences between the first time and each of the second and third times. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for determining a location of at least an image of a transmitter transmitting a signal with respect to a receiver having a plurality of at least three antennas separated by known distances for receiving the signal, the method comprising the steps of:
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determining differences in time between receipt of the signal at one of the plurality of antennas and at least two of the other antennas; and
processing the known distances and the determined differences in time to determine the location of at least the image of the transmitter. - View Dependent Claims (20, 21, 22, 23)
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24. A system for determining a location of at least an image of a transmitter transmitting a signal with respect to a receiver having a plurality of at least three antennas separated by known distances for receiving the signal, the system comprising:
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means for determining differences in time between receipt of the signal at one of the plurality of antennas and at least two of the other antennas; and
means for processing the known distances and the determined differences in time to determine the location of at least the image of the transmitter. - View Dependent Claims (25, 26, 27, 28)
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29. A computer readable medium including software that is configured to control a general purpose computer to implement a method for determining a location of at least an image of a transmitter transmitting a signal with respect to a receiver having a plurality of at least three antennas separated by known distances for receiving the signal, the method including the steps of:
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determining differences in time between receipt of the signal at one of the plurality of antennas and at least two of the other antennas; and
processing the known distances and the determined differences in time to determine the location of at least the image of the transmitter. - View Dependent Claims (30, 31, 32)
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Specification