TY - JOUR
T1 - Intelligent multipoint Arnoldi (IMA) approximations of FIR filters by low-order linear-phase IIR filters
AU - Lee, Herng Jer
AU - Chu, Chia Chi
AU - Feng, Wu Shiung
PY - 2002
Y1 - 2002
N2 - A new Krylov subspace projection method, called intelligent multipoint Arnoldi (IMA) method, to approximate FIR filters by low-order linear-phase IIR filters is developed. Based on special realizations of FIR filters, iterative nature of Arnoldi algorithm, and expansion points selection scheme, the proposed method is very efficient in terms of computational complexity. In addition, the lower-order IIR filter can truly reflect dynamical features of the FIR filter and indeed satisfies original design specifications. Fundamental developments of the proposed IMA algorithm will be discussed in details. Numerical examples will demonstrate the accuracy and the efficiency of the proposed method.
AB - A new Krylov subspace projection method, called intelligent multipoint Arnoldi (IMA) method, to approximate FIR filters by low-order linear-phase IIR filters is developed. Based on special realizations of FIR filters, iterative nature of Arnoldi algorithm, and expansion points selection scheme, the proposed method is very efficient in terms of computational complexity. In addition, the lower-order IIR filter can truly reflect dynamical features of the FIR filter and indeed satisfies original design specifications. Fundamental developments of the proposed IMA algorithm will be discussed in details. Numerical examples will demonstrate the accuracy and the efficiency of the proposed method.
UR - http://www.scopus.com/inward/record.url?scp=0036292457&partnerID=8YFLogxK
M3 - 会议文章
AN - SCOPUS:0036292457
SN - 0271-4310
VL - 1
SP - I/417-I/420
JO - Proceedings - IEEE International Symposium on Circuits and Systems
JF - Proceedings - IEEE International Symposium on Circuits and Systems
T2 - 2002 IEEE International Symposium on Circuits and Systems
Y2 - 26 May 2002 through 29 May 2002
ER -