High-bandwidth over-the-air signal processing
US8111770B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2005 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Jul 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03203
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An electronic MIMO-OFDM carrier frequency recovery method is disclosed. The method includes receiving a wirelessly propagated time-domain signal observation, estimating a data-channel vector from a latest observation vector by correcting for a phase rotation effect based on an initial estimate or an up-to-date estimate of a phase rotation term, removing an effect associated with the data-channel vector from the latest observation vector using the estimated data-channel vector to obtain an up-to-date estimate of the phase rotation term; and repeating those prior acts iteratively to allow for production of FFT input samples that are free or nearly free of carrier frequency and phase error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.