Army

Asymptotically optimal modulation classification method for software defined radios

  • US Patent No. 8223890
  • Issued: July 17, 2012
  • Status: Expired
Communications

A method for identifying the modulation scheme of a software defined radio in real-time without pilot symbols between transmitters and receivers, includes providing a predetermined look-up table (LUT) in the software-defined radio wherein the LUT is prepared by pre-calculating discrete likelihood ratio test (DLRT) function values; storing the pre-calculated DLRT values in said LUT; and indexing the pre-calculated DLRT values by addresses.

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