An Instrumental-Variable QR Decomposition Vector-Fitting Method for Modeling Multiport Networks Characterized by Noisy Frequency Data

被引：6

作者：

Sahouli, Mohamed ^{[1
]}

Dounavis, Anestis ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Elect & Comp Engn, London, ON N6A 5B9, Canada

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2016年 / 26卷 / 09期

基金：

加拿大自然科学与工程研究理事会;

关键词：

High-speed interconnect; instrumental variable; macromodeling; noise; rational approximations; vector fitting; SYSTEMS;

D O I：

10.1109/LMWC.2016.2598141

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents an efficient method to macro-model large multiport systems characterized by noisy frequency domain data. The proposed method is based on the vector fitting algorithm and uses an instrumental variable approach and QR decomposition to formulate the least squares equations. The instrumental variable method minimizes the biasing effect of the least squares solution caused by the noise of the data samples while QR decomposition decouples the least squares equations of multiport systems described by common set of poles. It is illustrated, that the proposed approach can increase the accuracy of the pole-residue estimates with less iteration when compared to the traditional QR decomposition vector fitting method.

引用

页码：645 / 647

页数：3

共 4 条

[1] An Instrumental Variable Vector-Fitting Approach for Noisy Frequency Responses
Beygi, Amir
Dounavis, Anestis
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2012, 60 (09) : 2702 - 2712
[2] Broadband macromodeling of sampled frequency data using z-domain vector-fitting method
Mekonnen, Yidnek S.
Schutt-Aine, Jose E.
2007 IEEE WORKSHOP ON SIGNAL PROPAGATION ON INTERCONNECTS, 2007, : 45 - 48
[3] GVF: GPU-Based Vector Fitting for Modeling of Multiport Tabulated Data Networks
Ganeshan, Srinidhi
Elumalai, Naveen Kumar
Achar, Ramachandra
Lee, Wai Kong
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, 2020, 10 (08): : 1375 - 1387
[4] A Cable Modeling Method Based on Vector Fitting Algorithm Considering Frequency-Variable Characteristics
Tian, Li
Ming, Zhang
2019 IEEE ASIA POWER AND ENERGY ENGINEERING CONFERENCE (APEEC 2019), 2019, : 121 - 125

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