Title :
Delta discrete-time operator based realization procedure for low sensitivity sampled-data and digital ladder filters
Author :
Khoo, I-Hung ; Reddy, Hari C. ; Moschytz, George S.
Author_Institution :
Dept. of Electr. Eng., California State Univ., Long Beach, CA
Abstract :
A delta operator based ladder synthesis procedure is presented for the realization of three different types of transfer functions. The procedure overcomes the numerical problem of the conventional z-domain LDI approach when the filter poles are clustered near z=1 and does not require any s-domain polynomial transformation to achieve spectral factorization [4]. Also, the entire operation involves only rational polynomials.
Keywords :
digital filters; discrete time filters; ladder filters; polynomials; sampled data filters; transfer functions; delta discrete time operator; delta operator; digital ladder filters; ladder synthesis; low sensitivity sampled data; rational polynomials; s-domain polynomial transformation; spectral factorization; transfer functions; z-domain LDI; Active filters; Cities and towns; Computer science; Digital filters; Discrete transforms; Educational institutions; Intelligent networks; Narrowband; Polynomials; Transfer functions;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541711
