Synchronisation method and device for a communication receiver
US6662000B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2000 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Feb 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0095
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The method determines a deviation between a modulation frequency, combined with a first baseband signal to form a transmitted signal and a frequency used by the receiver to form a second baseband signal from a received signal, in order to adjust the frequency used by the receiver. Knowing a time segment of the first signal and the time position of a corresponding segment of the second signal, whereby the segments comprise N samples at a sample frequency Fe, a frequency transform Y(f), of size N, of the product of the complex conjugate of said segment of the first signal by the corresponding segment of the second signal is calculated, and the frequency deviation &Dgr;f which makes the frequency transform Y(f) as close as possible to C.Sc(f−&Dgr;f), is determined, where and C is a complex coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.