TY - JOUR
T1 - Design of robust IIR magnitude filters via semidefinite programming
AU - Liu, Yonghong
AU - Luo, Zhi Quan
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2003
Y1 - 2003
N2 - In this paper we consider the design of lowpass infinite impulse response (IIR) magnitude filters which are robust against the implementation error. It is shown that the design problem can be cast as a quasiconvex problem with a set of linear matrix inequality (LMI) constraints and the autocorrelation sequences of the filter coefficients as the design variables. The relation between the norm error of autocorrelation sequences and that of filter coefficients is derived, and the issue of filter stability is addressed by deriving a lower bound on the distance from the pole to the unit circle. Simulation results show that our designed filter is immune from the errors caused by finite precision implementation. The method can also be used in similar highpass and bandpass IIR filter design.
AB - In this paper we consider the design of lowpass infinite impulse response (IIR) magnitude filters which are robust against the implementation error. It is shown that the design problem can be cast as a quasiconvex problem with a set of linear matrix inequality (LMI) constraints and the autocorrelation sequences of the filter coefficients as the design variables. The relation between the norm error of autocorrelation sequences and that of filter coefficients is derived, and the issue of filter stability is addressed by deriving a lower bound on the distance from the pole to the unit circle. Simulation results show that our designed filter is immune from the errors caused by finite precision implementation. The method can also be used in similar highpass and bandpass IIR filter design.
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M3 - Conference article
AN - SCOPUS:0141855015
SN - 1520-6149
VL - 6
SP - 13
EP - 16
JO - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
JF - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
T2 - 2003 IEEE International Conference on Accoustics, Speech, and Signal Processing
Y2 - 6 April 2003 through 10 April 2003
ER -