Title :
A semi-definite programming (SDP) method for designing IIR sharp cut-off digital filters using frequency-response masking
Author :
Chen, H.H. ; Chan, S.C. ; Ho, K.L.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
Abstract :
This paper studies the design of frequency response masking (FRM) filters with infinite duration impulse response (IIR) model and masking sub-filters. They are useful in realizing sharp cutoff digital filters and with low passband delays. The designs of the model and masking filters are carried out by means of semidefinite programming (SDP) and model order reduction. Design results show that low complexity FRM filters with low passband delay can be obtained.
Keywords :
IIR filters; circuit optimisation; digital filters; frequency response; IIR filters; frequency-response masking filters; low passband delays; masking subfilters; model order reduction; semidefinite programming method; sharp cut-off digital filter; Band pass filters; Bandwidth; Cutoff frequency; Delay systems; Digital filters; Finite impulse response filter; IIR filters; Narrowband; Nonlinear filters; Passband;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328705
