Coefficient estimation for digital IQ calibration
US9431962B2 · kind B2 · utility
1Cited by
1References
14Claims
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Key dates
| Filing date | Jan 2, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jan 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/305
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An RF reception system and method uses IF quadrature mixing, in which there is further mixing and channel filtering in the digital domain, to isolate a frequency of interest. A coefficient estimator is used for generating a phase correction coefficient and an amplitude correction coefficient from filtered in-phase and quadrature desired signals and from filtered in-phase and quadrature image signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.