Saleh Model and Digital Predistortion for Power Amplifiers in Wireless Communications Using the Third-Order Intercept Point

Authors

Haider Al-kanan, Portland State University
Xianzhen Yang, Portland State UniversityFollow
Fu Li, Portland State UniversityFollow

Published In

Journal of Electronic Testing

Document Type

Citation

Publication Date

6-2019

Abstract

This paper presents a novel approach for estimating the Saleh model’s parameters using the gain and third-order intercept point (IP3) of a power amplifier. The IP3 is a widely used technical parameter for describing the nonlinearity of the power amplifier in wireless communications. The proposed approach minimizes an objective function of error between the third-order Taylor series and the Saleh Amplitude-to-Amplitude (AM/AM) model. This approach of the parameters estimation is also used for identifying the Digital Predistortion (DPD) to compensate for the memoryless AM/AM nonlinear distortion of power amplifiers in wireless communications. Finally, the Saleh model accuracy and DPD linearization are validated based on the WCDMA measurement signal.

Description

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Locate the Document

http://doi.org/10.1007/s10836-019-05801-3

DOI

10.1007/s10836-019-05801-3

Persistent Identifier

https://archives.pdx.edu/ds/psu/29166

Citation Details

Al-kanan, H., Yang, X., & Li, F. (2019). Saleh Model and Digital Predistortion for Power Amplifiers in Wireless Communications Using the Third-Order Intercept Point. Journal of Electronic Testing, 35(3), 359–365.