TY - GEN
T1 - Combining rational interpolation with the vector fitting method
AU - Mekonnen, Y. S.
AU - Schutt-Ainé, José
AU - Tan, Jilin
AU - Kumar, C.
AU - Milosevic, Dragoslav
PY - 2005
Y1 - 2005
N2 - In this paper, a method is proposed to improve the initial poles and convergence of the vector fitting method. The procedure takes advantage of the robustness of the rational interpolation method in extracting stable poles over partitioned bandwidth and the numerical stability and fast convergence of the vector fitting method in generating accurate high-order rational approximation. First, the stable poles of the entire frequency range are obtained by partitioning the domain and performing rational interpolation in each bandwidth. Then, the collected poles are used as initial poles to the vector-fitting algorithm to obtain the overall high-order rational approximation. The accuracy and convergence of the standard vector fitting and proposed methods are compared. Examples are provided to demonstrate the advantage of the proposed approach.
AB - In this paper, a method is proposed to improve the initial poles and convergence of the vector fitting method. The procedure takes advantage of the robustness of the rational interpolation method in extracting stable poles over partitioned bandwidth and the numerical stability and fast convergence of the vector fitting method in generating accurate high-order rational approximation. First, the stable poles of the entire frequency range are obtained by partitioning the domain and performing rational interpolation in each bandwidth. Then, the collected poles are used as initial poles to the vector-fitting algorithm to obtain the overall high-order rational approximation. The accuracy and convergence of the standard vector fitting and proposed methods are compared. Examples are provided to demonstrate the advantage of the proposed approach.
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U2 - 10.1109/EPEP.2005.1563698
DO - 10.1109/EPEP.2005.1563698
M3 - Conference contribution
AN - SCOPUS:33845890269
SN - 0780392205
SN - 9780780392205
T3 - IEEE Topical Meeting on Electrical Performance of Electronic Packaging
SP - 51
EP - 54
BT - 14th Topical Meeting on Electrical Performance of Electronic Packaging 2005
T2 - 14th Topical Meeting on Electrical Performance of Electronic Packaging 2005
Y2 - 24 October 2005 through 26 October 2005
ER -