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Package Macromodeling via Time-Domain Vector Fitting [PDF]

IEEE Microwave and Wireless Components Letters, 2003
—This paper addresses the construction of lumped macromodels for package structures. A technique named Time-Domain Vector Fitting (TD-VF) is introduced for the identification of the dominant poles of the structure.
Grivet-Talocia, S.
core   +5 more sources

Circuit Extraction via Time-Domain Vector Fitting [PDF]

2004 International Symposium on Electromagnetic Compatibility (IEEE Cat. No.04CH37559), 2004
This paper introduces a new algorithm for the automatic synthesis of SPICE-ready equivalent circuits of complex multiport lumped interconnect structures. The method is named time-domain vector fitting (TD-VF) due to its analogy to the well-known vector fitting algorithm, which operates in the frequency domain.
Canavero, Flavio, Grivet-Talocia, S., Maio, Ivano Adolfo, Stievano, Igor Simone   +3 more
core   +3 more sources

Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting [PDF]

Scientific Reports, 2023
A novel wideband parametric baseband macromodeling technique for passive photonic devices and circuits is presented. It allows to efficiently estimate the baseband scattering representations of a linear, passive photonic system as a function of a set of ...
Thijs Ullrick, Domenico Spina, Wim Bogaerts, Tom Dhaene   +3 more
doaj   +2 more sources

On the Parallelization of Vector Fitting Algorithms [PDF]

IEEE Transactions on Components, Packaging and Manufacturing Technology, 2011
The so-called vector fitting (VF) algorithm has gained much popularity over the last few years. This technique provides a very effective system identification tool that, starting from input-output responses of a linear and time-invariant system, computes a rational approximation of its transfer matrix. The latter is routinely used to synthesize compact
Chinea, Alessandro, Grivet-Talocia, S.
core   +2 more sources

B-spline curve fitting based on dynamic adjustment of knot vector using feature points. [PDF]

PLoS ONE
An essential challenge in B-spline curve fitting is how to produce a B-spline curve that satisfies the accuracy requirement with a minimal number of knots and control points. This paper suggests a better algorithm based on feature points method.
Xiaobing Chen, Shuxin Guo, Rongrong Wang, Chuangchuang Zhang, Jianchu Lin, Shang Chen   +5 more
doaj   +3 more sources

Quadrature-Based Vector Fitting: Implications For H2 System Approximation

SIAM journal on scientific computing, 2014
Vector Fitting is a popular method of constructing rational approximants designed to fit given frequency response measurements. The original method, which we refer to as VF, is based on a least-squares fit to the measurements by a rational function ...
Beattie, Christopher, Drmac, Zlatko, Gugercin, Serkan   +2 more
core   +3 more sources

RESEARCH ON GPS HEIGHT FITTING BASED ON ABC OPTIMIZED LSSVM [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Aiming at the problem that the fitting parameters of the least squares support vector machine fitting method are difficult to select, a method of introducing the artificial bee colony algorithm into the least squares support vector machine to establish a
Y. Zhang, Y. Zhang, J. J. Huang, S. H. Tang, S. H. Tang, P. W. Xing, P. W. Xing   +6 more
doaj   +1 more source

Wave Energy Converter’s Slack and Stiff Connection: Study of Absorbed Power in Irregular Waves

Energies, 2021
Two different concepts of wave energy converter coupled to the novel C-GEN linear generator have been studied numerically, including the evaluation of different buoy sizes.
Tatiana Potapenko, Joseph Burchell, Sandra Eriksson, Irina Temiz   +3 more
doaj   +1 more source

Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics

Energies, 2021
This paper develops a predictive modeling algorithm, denoted as Real-Time Vector Fitting (RTVF), which is capable of approximating the real-time linearized dynamics of multi-input multi-output (MIMO) dynamical systems via rational transfer function ...
Tommaso Bradde, Samuel Chevalier, Marco De Stefano, Stefano Grivet-Talocia, Luca Daniel   +4 more
doaj   +1 more source

Macromodeling High-Speed Circuit Data Using Rational Krylov Fitting Method

Energies, 2021
This paper presents the modeling of high speed distributed networks characterized by S-parameters frequency data using the rational Krylov fitting (RKFIT) algorithm. Numerical examples illustrate the effectiveness of the method to compute stable rational
Mohamed Sahouli, Anestis Dounavis
doaj   +1 more source