Blind Receiver Distortion Compensation
Paper in proceeding, 2021

A novel technique to compensate for the nonlinearity of a receiver (RX) is proposed and demonstrated experimentally. The adaptive technique is fully blind and does not require any prior knowledge of the transmitting signal. The technique has the capability to both characterize and compensate for the nonlinearity of the RX, making it suitable for implementations in both communication and instrumentation systems. For the former, two RXs operating simultaneously and an attenuator are required to enable real-time data transmission. For the latter, measurements using a single RX and an attenuator can be done instead. By utilizing the knowledge of the signals received at different input power levels, the proposed technique provides improvements to the RX linearity. The technique is demonstrated experimentally with an RF amplifier, where significant improvements quantified through multiple indicators, e.g., the adjacent channel power ratio, are observed.

instrumentation and measurement


nonlinear distortion

least squares approximation

wireless communication

Blind equalizers


Dhecha Nopchinda

University College London (UCL)

Thomas Eriksson

Chalmers, Electrical Engineering

Koen Buisman

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

University of Surrey

2021 51st European Microwave Conference, EuMC 2021

9782874870637 (ISBN)

51st European Microwave Conference, EuMC 2021
London, United Kingdom,

Subject Categories


Signal Processing

Other Electrical Engineering, Electronic Engineering, Information Engineering



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