Method for rapid carrier frequency estimation in a communication system
US6731710B1 · kind B1 · utility
13Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1998 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Sep 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A modem for more efficiently processing a received analog signal into a digital output. The modem preferably estimates the carrier frequency offset in at least one stage, by receiving a synchronization field divided into at least two portions, calculating a difference of the phase between the portions, and then calculating the frequency offset from the phase difference. More preferably, the modem estimates the carrier frequency offset in two stages, with a first stage being a initial frequency estimate of the offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.