Systems and methods for interference geolocation and mitigation using a phased array receiving antenna
First Claim
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1. A method for geolocating an interference signal using a phased array receiving antenna, said method comprising:
- perturbing a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first sub-beam from the first communications beam and a second sub-beam from the second communications beam, wherein the first communications beam and the first sub-beam form a first composite beam and the second communications beam and the second sub-beam form a second composite beam;
cross-correlating the first composite beam and the second composite beam;
receiving communications data using the first composite beam and the second composite beam; and
determining a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam.
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Abstract
A method for mitigating interference using a phased array receiving antenna is provided. The method includes perturbing a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first composite beam and a second composite beam, cross-correlating the first composite beam and the second composite beam, receiving communications data using the first composite beam and the second composite beam, and determining a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam.
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Citations
20 Claims
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1. A method for geolocating an interference signal using a phased array receiving antenna, said method comprising:
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perturbing a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first sub-beam from the first communications beam and a second sub-beam from the second communications beam, wherein the first communications beam and the first sub-beam form a first composite beam and the second communications beam and the second sub-beam form a second composite beam; cross-correlating the first composite beam and the second composite beam; receiving communications data using the first composite beam and the second composite beam; and determining a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A communications satellite comprising:
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a phased array receiving antenna; and at least one processor in communication with said phased receiving antenna, said at least one processor configured to; perturb a first communications beam and a second communications beam received at said phased array receiving antenna to generate a first sub-beam from the first communications beam and a second sub-beam from the second communications beam, wherein the first communications beam and the first sub-beam form a first composite beam and the second communications beam and the second sub-beam form a second composite beam; cross-correlate the first composite beam and the second composite beam; receive communications data using the first composite beam and the second composite beam; and determine a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A non-transitory computer-readable medium having computer-executable instructions embodied thereon, wherein when executed by a communications satellite comprising a phased array receiving antenna and at least one processor in communication with the phased array receiving antenna, the computer-executable instructions cause the at least one processor to:
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perturb a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first sub-beam from the first communications beam and a second sub-beam from the second communications beam, wherein the first communications beam and the first sub-beam form a first composite beam and the second communications beam and the second sub-beam form a second composite beam; cross-correlate the first composite beam and the second composite beam; receive communications data using the first composite beam and the second composite beam; and determine a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam.
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Specification