Asymptotically optimal modulation classification method for software defined radios
US8223890B1 · kind B1 · utility
6Cited by
3References
4Claims
0Family size
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Key dates
| Filing date | Oct 30, 2009 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Aug 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/38
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.