Systems and methods for geographic positioning using radio spectrum signatures
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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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1-53. -53. (canceled)
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54. A radio having a memory, the memory comprising:
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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 comprising instructions for obtaining a current radio signature by scanning a contiguous range of frequencies in said frequency spectrum, wherein said current radio signature comprises a plurality of measured signal qualities that collectively represent said frequency spectrum, each measured signal quality in said plurality of measured signal qualities corresponding to a portion of said frequency spectrum; means for comparing said current radio signature to said plurality of reference radio signatures; a radio display table, wherein said radio display table comprises information for each global position in a plurality of global positions; and means for updating information in said radio display table. - View Dependent Claims (55, 57, 58, 65, 66, 67)
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56. (canceled)
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59-64. -64. (canceled)
Specification