Systems and methods for geographic positioning using radio spectrum signatures
First Claim
1. A method of localizing a geographic position of a radio receiver, the method comprising:
- obtaining a current radio signature, wherein said current radio signature comprises a plurality of measured signal qualities that collectively represent a frequency spectrum, each measured signal quality in said plurality of measured signal qualities corresponding to a portion of said frequency spectrum; and
comparing said current radio signature to a plurality of reference radio signatures, each reference radio signature in said plurality of reference radio signatures associated with a global position;
wherein when said comparing identifies a unique match between said current radio signature and a reference radio signature in said plurality of reference radio signatures, said radio receiver is deemed to be localized to the global position associated with said reference radio signature.
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Abstract
Methods, radios, components thereof, and other devices for localizing a geographic position of a radio receiver are provided. A current radio signature is obtained. The current radio signature comprises a plurality of measured signal qualities that collectively represent a frequency spectrum. Each measured signal quality in the plurality of measured signal qualities corresponds to a portion of the frequency spectrum. The current radio signature is compared with a plurality of reference radio signatures. Each reference radio signature in the plurality of reference radio signatures is associated with a global position. When the comparing identifies a unique match between the current radio signature and a reference radio signature in the plurality of reference radio signatures, the radio receiver is deemed to be localized to the global position associated with the reference radio signature.
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Citations
67 Claims
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1. A method of localizing a geographic position of a radio receiver, the method comprising:
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obtaining a current radio signature, wherein said current radio signature comprises a plurality of measured signal qualities that collectively represent a frequency spectrum, each measured signal quality in said plurality of measured signal qualities corresponding to a portion of said frequency spectrum; and
comparing said current radio signature to a plurality of reference radio signatures, each reference radio signature in said plurality of reference radio signatures associated with a global position;
whereinwhen said comparing identifies a unique match between said current radio signature and a reference radio signature in said plurality of reference radio signatures, said radio receiver is deemed to be localized to the global position associated with said reference radio signature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 59, 60, 61)
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47. A device comprising:
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instructions for accessing a radio signature lookup table, said radio signature lookup table comprising a plurality of reference radio signatures that collectively represent a frequency spectrum, each reference radio signature in said plurality of reference radio signatures associated with a global position;
a radio signature measurement model for localizing a geographic position of a device, the radio signature measurement model comprising instructions for obtaining a current radio signature, wherein said current radio signature comprises a plurality of measured signal qualities, each measured signal quality in said plurality of measured signal qualities corresponding to a portion of said frequency spectrum; and
a radio signature comparison module comprising instructions for comparing said current radio signature to said plurality of reference radio signatures. - View Dependent Claims (48, 49, 50, 51, 52, 53, 62, 63, 64)
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54. A radio comprising:
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means for accessing a radio signature lookup table, said radio signature lookup table comprising a plurality of reference radio signatures, each reference radio signature in said plurality of reference radio signatures associated with a global position;
means for localizing a geographic position of the radio, the radio signature measurement model comprising instructions for obtaining a current radio signature, wherein said current radio signature comprises a plurality of measured signal qualities that collectively represent a frequency spectrum, each measured signal quality in said plurality of measured signal qualities corresponding to a portion of said frequency spectrum; and
means for comparing said current radio signature to said plurality of reference radio signatures. - View Dependent Claims (55, 56, 57, 58, 65, 66, 67)
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Specification