OFDM信号的相邻信道功率比分析

Proceedings of the Fifth IEEE International Symposium on Signal Processing and Information Technology, 2005. Pub Date : 2005-12-21 DOI:10.1109/ISSPIT.2005.1577147

S. Ragusa, J. Palicot, C. Roland, C. Lereau

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引用次数: 3

摘要

多载波信号的非线性功率放大会产生大量的扰动。其中，本文对相邻信道的功率增加进行了研究。这种现象的特征是相邻信道功率比(ACPR)参数。我们在本文中进行的分析使我们能够找到ACPR与信号子载波数量n的一般表达式，然后，我们提出了一个新的ACPR定义，它可以更好地表征肩部的增加(频谱再生)。我们推导的另一个有趣之处是，我们可以找到放大器的多项式模型的参数a1和a3，用于期望的ACPR

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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Adjacent channel power ratio analysis for an OFDM signal

The nonlinear power amplification of multi-carriers signals generates a lot of perturbations. Among them the power increase in the adjacent channels is studied in this paper. This phenomenon is characterized by the adjacent channel power ratio (ACPR) parameter. The analysis we perform in this paper allows us to find a general expression of ACPR versus the number of signal's sub-carriers, N. Then, we propose a new ACPR definition which permits to better characterize the increase of the shoulders (spectral regrowth). Another interest of our derivation is that we can find the parameters a1 and a3 of the amplifier's polynomial model for a desired ACPR

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Proceedings of the Fifth IEEE International Symposium on Signal Processing and Information Technology, 2005.

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