High-speed analog-to-digital conversion with improved robustness to timing uncertainty
US7934144B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Nov 12, 2003 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Feb 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1245
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system using the principle of generalized maximum likelihood estimation to resolve sample timing uncertainties that are associated with the decoding of communication signals. By using generalized maximum likelihood estimation, sample timing uncertainty can be resolved by taking multiple samples of the received signal within a symbol period and determining which sample best corresponds to the optimal sample timing. The sample which best corresponds to the optimal sample timing can be determined from a timing index which can be calculated from ambiguity indicators that are based on the samples of the received signal.
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