Precorrection of a nonlinear amplifier
US6812792B2 · kind B2 · utility
32Cited by
14References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Jan 2, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/3258
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are disclosed for predistorting an input signal to a non-linear amplifier. An appropriate precorrection is determined for the input signal over a series of iterative stages according to an amplifier model. The amplifier model includes a limiting function that clips the input signal to reduce error due to amplifier saturation. The determined precorrection is then applied to the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.