Title :
A new method for designing allpass filters with equiripple group delay errors
Author :
Tao Hong ; Huang Bai ; Sheng Li ; Chaogeng Huang ; Liping Chang
Author_Institution :
Zhejiang Key Lab. for Signal Process., Zhejiang Univ. of Technol., Hangzhou, China
Abstract :
Allpass filters have found many applications in signal processing areas. This paper describes an algorithm for the design of stable allpass digital filter with equiripple group delay errors. The problem is formulated as an iterative reweighted linear program (LP) problem. An algorithm is derived for solving such a problem. The design examples are given, which demonstrate that the proposed algorithm is very efficient and converges much faster than the existing ones for the design of allpass filters with equiripple constant group delay errors.
Keywords :
all-pass filters; iterative methods; linear programming; allpass filters; equiripple group delay errors; iterative reweighted linear program problem; signal processing areas; Algorithm design and analysis; Convergence; Delays; Iterative methods; Signal processing; Signal processing algorithms; Stability analysis; allpass; equiripple; iterative minimax; weighting function;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2014 IEEE 9th Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4799-4316-6
DOI :
10.1109/ICIEA.2014.6931314
