Method and a system for digitally linearizing an amplifier
US6400775B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jan 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3233
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of digitally linearizing an amplifier having non-linearity, the method being of the type comprising: a prior stage in which correction parameters for correcting said non-linearity are determined, and a linear amplification stage performed by applying predistortion followed by amplification. In the invention, stage in which the correction parameters are determined comprises the following steps: acquiring said amplified test signal in the form of samples in baseband; defining a modelled amplifier, by computing parameters of a predetermined amplifier model on the basis of said samples of the amplified test signal; and computing said correction parameters on the basis of said modelled amplifier so that they make it possible to linearize said modelled amplifier. The invention also relates to a corresponding system for digitally linearizing an amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.