Methods to extend the frequency lock range of a received RF signal using a preamble-based frequency estimate
US8842043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0095
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is presented to extend a frequency lock range of a received RF signal in a satellite receiver. One step in the method includes analyzing data information of a preamble associated with the received satellite RF signal. Another step includes determining an estimated frequency value that is a function of the analyzed data information that further includes at least a portion of the frequency error formed therein. A further step includes comparing the determined estimated frequency value to a predetermined threshold value. Another step includes using the determined estimated frequency value when the determined frequency value is greater than the predetermined threshold value to operatively control tracking mode electronic circuitry disposed in the satellite receiver to attain frequency lock on the received satellite RF signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.