@inproceedings{7ed899e6280247899031650ceada7e3f,
title = "A new loop-delay estimation algorithm for amplifier predistortion system",
abstract = "Predistortion technology is an adaptive, low cost and potential linearization method. Proper loop-delay estimation and compensation are important preconditions for ensuring the predistorter working well. But traditional loop-delay estimation algorithms are vulnerable to the amplifier's memory and nonlinear distortion. In this paper, based on the relationship between the system loop-delay and the amplitude of predistorter error output, we propose a new loop-delay estimation algorithm which improves the algorithm estimation accuracy in memory nonlinear distortion. Simulation results show that the NMSE converging curve is very close to the ideal one and a good power spectral density (PSD) performance is achieved. The new algorithm realizes the synchronous work of the predistorter and the loop-delay estimation that maintains the reliability and continuity of signal transmission.",
keywords = "LMS algorithm, Loop-delay estimation, Nonlinearity, Predistorter",
author = "Zhengdai Li and Xiaonian He and Nan Wu",
year = "2012",
doi = "10.1109/VETECS.2012.6240132",
language = "English",
isbn = "9781467309905",
series = "IEEE Vehicular Technology Conference",
booktitle = "IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings",
note = "IEEE 75th Vehicular Technology Conference, VTC Spring 2012 ; Conference date: 06-05-2012 Through 09-06-2012",
}