Halbparametrische Digitale Vorverzerrung

Details

Veröffentlichungs-Nr.

EP4761105

Anmeldetag

9. Dezember 2025

Veröffentlichung

17. Juni 2026

Rechtsraum

EP

IPC

H03F1/32, H03F3/24

Abstract

A digital pre-distortion circuit and technique for a signal being amplified. Digital pre-distortion is performed using a model-based pre-distortion function. Pre-distortion is further corrected using a data-driven pre-distortion function. The model-based pre-distortion function and the data-driven pre-distortion function are trained using training data including a digital loopback signal generated by sampling a loopback signal of an amplifier, the digital pre-distorted signal input to the amplifier for a time period, and an intermediate signal output from the model-based pre-distortion function driven by the digital loopback signal or an output of the data-driven pre-distortion function. Parameters may be continually updated in order to account for changes in characteristics of the amplifier.

Anmelder

Firma

Avago Technologies International Sales Pte. Limited

Land

🇸🇬 Singapur