Methods and systems for doppler frequency shift removal and correlation for software-based receivers
US7679551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2007 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Aug 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/37
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the invention provide a method for effecting Doppler removal and correlation for software-based receivers. For one embodiment of the invention Doppler removal is performed concurrently for all received communications signals. For one embodiment of the invention, a single frequency selected to effect Doppler removal, multiple communications signals having Doppler frequency shift are received from corresponding communications signal sources, and a Doppler removal process is performed concurrently for each received communication signal. A correlation process is then performed, the correlation process having an integration interval divided into multiple sub-intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.