Comparative study of X-parameters and nonlinear scattering functions
Comparative study of X-parameters and nonlinear scattering functions
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DOI：
10.1109/icemi.2011.6037923
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发表时间：
2011-10
期刊：
影响因子：
--
通讯作者：
Zhang Qinglong;Liang Shengli
中科院分区：
文献类型：
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作者：
Zhang Qinglong;Liang Shengli
半个多世纪以来，S参数一直被用来分析线性网络。尽管S参数取得了巨大的成功，但它们受到了严重的限制。事实上，在真实的世界中，所有的系统都是非线性的。对非线性网络的刻画是一项艰巨的工作，因而成为当今的研究热点。本文介绍了两种非线性建模方法：X参数法和散射函数法。通过对这两种方法的基本概念和提取系统的比较，得出了它们之间的关系。在本文的最后，我们提出了一个提取系统，可以采用X参数或散射函数的非线性特征和建模。
S-parameters have been used in analyzing linear networks for more than half a century. Despite the great success of S-parameters, they are severely limited. In fact in real world, all systems are nonlinear. It's a hard work to characterizing the nonlinear network and thus it becomes a hot issue today. This article introduces two methods of nonlinear modeling, X-parameters and scattering functions. We give a conclusion on the relation of these two methods after comparing their basic concept and extraction systems. At the end of this paper, we present an extraction system which can adopt either X-parameters or Scattering functions for the nonlinear characterizing and modeling.