Title :
Log-domain allpass group-delay equaliser design with XFILTER
Author :
Ng, Andrew E J ; Sewell, J.I.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
Synthesis procedures for log-domain ladder and cascade-biquad allpass group-delay equalisers are presented. The ladder equalisers are based on operationally simulating passive driving-point admittance prototypes using matrix methods. From these, biquadratic and first order log-domain allpass sections are derived. These synthesis procedures have been implemented in the design software XFILTER.
Keywords :
IIR filters; all-pass filters; biquadratic filters; circuit CAD; circuit simulation; delays; equalisers; ladder networks; IIR filters; XFILTER design software; biquadratic allpass sections; cascade-biquad allpass group-delay equalisers; first order allpass sections; log-domain allpass group-delay equalisers; log-domain ladder equalisers; matrix methods; passive driving-point admittance prototypes; Admittance; Filtering; Impedance; Nonlinear equations; Poles and zeros; Prototypes; Software design; Software prototyping; Vectors; Virtual prototyping;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1045349
