基于二次Volterra滤波器的无线中继系统二阶无源互调失真建模

2020 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2020-10-21 DOI:10.1109/ICTC49870.2020.9289348

Jinzi Song, Bobae Kim, Zhihui Jin, S. Im

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引用次数: 1

摘要

无源互调失真(PIMD)是指由于无线通信系统中无源元件的非线性，导致两个或多个传输信号频率相互作用，产生不希望的信号的现象。这种互调失真增加了无线通信系统接收频带中的噪声电平，从而降低了接收机的性能。本文研究了一种改进的二次Volterra滤波器的PIMD建模方法，该方法可用于降低无源互调失真水平以提高上行链路的接收性能。通过将该方法应用于长期演进(LTE)系统中继上的数据采样，评估了该方法的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Second-order Passive Intermodulation Distortion Modeling Using a Quadratic Volterra Filter for Wireless Relay Systems

Passive intermodulation distortion (PIMD) is a phenomenon in which two or more transmission signal frequencies interact with each other due to non-linearity in passive elements of a wireless communication system, and undesired signals are generated. Such intermodulation distortion increases the noise level in the receive frequency band of the wireless communication system, thereby degrading the performance of the receiver. In this paper, a PIMD modeling is investigated with a modified quadratic Volterra filter, which can be applied to reduce a passive intermodulation distortion level to enhance the uplink receive performance. The performance of the proposed approach is evaluated by employing it to the data sampled at a relay for the long term evolution (LTE) system.

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2020 International Conference on Information and Communication Technology Convergence (ICTC)

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