Method for detecting navigation beacon signals using two antennas or equivalent thereof
First Claim
1. A method for detecting a plurality of navigation beacon signals comprising:
- using two antennas for receiving two distinct measurements; and
combining the two distinct measurements using two antenna weight components to form an interference cancellation beam.
1 Assignment
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Accused Products
Abstract
A method for detecting a plurality of navigation beacon signals by using either two antennas or a synthetic aperture antenna for receiving a plurality of distinct measurements, and combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam. In one embodiment, the plurality of antenna weight components is determined by eigenvalue processing. In another embodiment, the plurality of antenna weight components is determined by simplified processing. In another aspect, a single antenna is used for receiving an originally received measurement. A copy of the originally received measurement is made and processed to achieve the proper time delay to emulate spatial diversity. The originally received measurement and the processed copy are combined to form an interference cancellation beam.
11 Citations
21 Claims
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1. A method for detecting a plurality of navigation beacon signals comprising:
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using two antennas for receiving two distinct measurements; and
combining the two distinct measurements using two antenna weight components to form an interference cancellation beam. - View Dependent Claims (2, 3, 4, 5)
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6. A method for detecting a plurality of navigation beacon signals comprising:
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using a synthetic aperture antenna for receiving a plurality of distinct measurements; and
combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam. - View Dependent Claims (7, 8, 9, 10)
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11. A method for detecting a plurality of navigation beacon signals comprising:
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using a antenna for receiving an originally received measurement;
making a copy of the originally received measurement and processing the copy of the originally received measurement by matching time delay for emulating spatial diversity to result in a processed copy; and
combining the originally received measurement with the processed copy using two antenna weight components to form an interference cancellation beam. - View Dependent Claims (12, 13, 14, 15)
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16. Computer readable media embodying a program of instructions executable by a computer program to perform a method for detecting a plurality of navigation beacon signals, the method comprising:
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using two antennas for receiving two distinct measurements; and
combining the two distinct measurements using two antenna weight components to form an interference cancellation beam.
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17. Computer readable media embodying a program of instructions executable by a computer program to perform a method for detecting a plurality of navigation beacon signals, the method comprising:
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using a synthetic aperture antenna for receiving a plurality of distinct measurements; and
combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam.
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18. Computer readable media embodying a program of instructions executable by a computer program to perform a method for detecting a plurality of navigation beacon signals, the method comprising:
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using a antenna for receiving an originally received measurement;
making a copy of the originally received measurement and processing the copy of the originally received measurement by matching time delay for emulating spatial diversity to result in a processed copy; and
combining the originally received measurement with the processed copy using two antenna weight components to form an interference cancellation beam.
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19. An integrated circuit to implement a method for detecting a plurality of navigation beacon signals, the method comprising:
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using two antennas for receiving two distinct measurements; and
combining the two distinct measurements using two antenna weight components to form an interference cancellation beam.
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20. An integrated circuit to implement a method for detecting a plurality of navigation beacon signals, the method comprising:
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using a synthetic aperture antenna for receiving a plurality of distinct measurements; and
combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam.
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21. An integrated circuit to implement a method for detecting a plurality of navigation beacon signals, the method comprising:
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using a antenna for receiving an originally received measurement;
making a copy of the originally received measurement and processing the copy of the originally received measurement by matching time delay for emulating spatial diversity to result in a processed copy; and
combining the originally received measurement with the processed copy using two antenna weight components to form an interference cancellation beam.
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Specification