Frequency-Domain Fitting Techniques: A Review
Frequency-Domain Fitting Techniques: A Review
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频域拟合技术：回顾
DOI：
--
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发表时间：
2020
影响因子：
4.4
通讯作者：
I. Kocar
中科院分区：
文献类型：
--
作者：
Jesus Morales Rodriguez;Edgar Medina;J. Mahseredjian;A. Ramirez;K. Sheshyekani;I. Kocar
本文对频域函数拟合的矢量拟合、矩阵铅笔法和洛厄纳矩阵法进行了理论回顾和比较。首先，简要介绍了各种技术的理论基础。其次，通过不同的算例比较了它们的计算性能和拟合精度。对于洛厄纳矩阵法，为了与其他两种方法进行比较，提出了一种新的实现方法。此外，还证明了这种新实现与传统实现相比具有一定的优势。最后，指定了全局注释和建议，以利用每种技术所显示的功能。
This paper presents a theoretical review and comparisons between vector fitting, matrix-pencil-method, and Loewner matrix techniques for the fitting of frequency-domain functions. Firstly, the theoretical fundaments of each technique are briefly reviewed. Secondly, their computational performances and fitting accuracy are compared through different case studies. As for Loewner Matrix method, a novel implementation is proposed for a fair comparison with the other two techniques. Moreover, it is demonstrated that this novel implementation has some advantages over the traditional one. Finally, global remarks and recommendations are specified to take advantage of the capabilities exhibited by each technique.