Title :
A new filter approximation and design algorithm
Author :
Ping, Li ; Henderson, R.K. ; Sewell, J.I.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
Two complementary algorithms that apply Newton´s method to approximation and passive ladder filter design are presented. Amplitude responses with a specified weighting or derivative value can be computed. The numerical ill-conditioning of conventional ladder synthesis methods is avoided by an extended version of H.J. Orchard´s (1985) algorithm. The techniques have been used in a filter compiler, and many practical difficulties are covered
Keywords :
circuit CAD; ladder networks; passive filters; Newton´s method; amplitude response; complementary algorithms; design algorithm; filter approximation; filter compiler; passive ladder filter design; practical difficulties; specified weighting; Algorithm design and analysis; Approximation algorithms; Computational efficiency; Curve fitting; Filters; Interpolation; Jacobian matrices; Newton method; Polynomials; Roundoff errors;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100535
