Adaptive volterra compensator
US11463072B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2017 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Feb 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/40
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention is a computationally-efficient compensator for removing nonlinear distortion. The compensator operates in a digital post-compensation configuration for linearization of devices or systems such as analog-to-digital converters and RF receiver electronics. The compensator also operates in a digital pre-compensation configuration for linearization of devices or systems such as digital-to-analog converters, RF power amplifiers, and RF transmitter electronics. The adaptive Volterra compensator effectively removes nonlinear distortion in these systems by implementing an adaptive background algorithm to periodically update actual filter coefficients to maintain optimal performance in operating conditions varying over time (e.g., temperature, frequency, signal level, and drift); or both. The xadaptive background algorithm calculates the optimal nonlinear filter coefficients to reduce nonlinear distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.