Multirate, iterative, memory polynomial based modeling and pre-distortion of high bandwidth power amplifiers
US10396723B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2018 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Mar 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3224
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system and method for pre-distorting a digital signal in a digital communications system. The method includes converting digital bits to be transmitted to a series of symbols defining the bits and providing the symbols to a pulse shaping filter (PSF) that provides samples of the symbols at a predetermined sample rate. The method also includes providing the filtered samples to a pre-distorter that pre-distorts the samples, wherein pre-distorting the samples includes providing a non-linear transformation of the samples that is defined by pre-distorter taps, and providing the pre-distorted samples to a power amplifier to be transmitted, where pre-distorting the samples includes modeling the power amplifier and associated transmitter components using a degree three memory polynomial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.