Relaxed vector fitting algorithm for rational approximation of frequency domain responses

被引：36

作者：

Gustavsen, Bjorn ^{[1
]}

机构：

[1] SINTEF, Energy Res, N-7465 Trondheim, Norway

来源：

10TH IEEE WORKSHOP ON SIGNAL PROPAGATION ON INTERCONNECTS, PROCEEDINGS | 2006年

关键词：

D O I：

10.1109/SPI.2006.289202

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：

Experience with the vector fitting algorithm for rational approximation of frequency domain responses has in some situations revealed problems with slow convergence. A typical example is the fitting of noisy responses. The problem is linked to a high frequency asymptotic condition of the nontriviality constraint used in the vector fitting formulation. Relaxation of the non-triviality constraint is shown to be an effective solution to this problem. Application to selected examples demonstartes a significant improvement of performance in terms of convergence speed and the accuracy of the final result.

引用

页码：97 / 100

页数：4

共 7 条

[1] Rational modeling of spectral data using orthonormal vector fitting [J].