Crest factor reduction for use in a multiband transmitter
US7313373B1 · kind B1 · utility
36Cited by
1References
20Claims
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Key dates
| Filing date | Apr 21, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jul 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Crest factor reduction in a multiband transmitter is described. Component signals (xi[n]) are respectively obtained from constituent signals. The component signals (xi[n]) are respectively associated with sub-bands. A superposed signal associated with the component signals (xi[n]) is clipped to obtain a clipping noise error signal. The clipping noise error signal is applied to the component signals (xi[n]) using a least squares estimation to project clipping noise error onto the sub-bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.