@inproceedings{495a13120ed44cdbbba5585fd0091e9d,
title = "A simple wideband digital predistortion system based on improved Powell algorithm",
abstract = "In order to solve the analog-to-digital converter (ADC) sampling rate in the traditional digital predistortion (DPD) system must be several times the bandwidth of the original signal to cover the out-of-band intermodulation components caused by nonlinear radio frequency power amplifiers (PA), lowcost ADC cannot meet today's demand problems. This paper proposes a robust iterative DPD coefficient extraction algorithm based on Powell algorithm and random demodulation. This method applies an improved Powell algorithm to a DPD parameter extraction system. The simulation studies the linearization performance of the system. The results show that when the system feedback bandwidth is equal to the original signal bandwidth, satisfactory linearization performance can be obtained. In addition, different from LM algorithm, Powell algorithm does not require partial derivatives of the estimated parameters, the system is simplified.",
keywords = "Powell algorithm, Random demodulation, Times Roman, acronyms, image area, references DPD",
author = "Zitong Lan and Qi Zhang and Xiangjun Xin and Qinghua Tian and Ying Tao and Yufei Shen and Guixing Cao and Naijing Liu and Jixi Qian",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; 10th International Conference on Information Optics and Photonics ; Conference date: 08-07-2018 Through 11-07-2018",
year = "2018",
doi = "10.1117/12.2506220",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Yidong Huang",
booktitle = "Tenth International Conference on Information Optics and Photonics",
address = "United States",
}