Title :
Optimal design of adjustable frequency response linear-phase filters
Author :
Pan Huiqing ; Zeng Hao ; Qiu Duyu ; Tian Shulin ; Ye Peng
Author_Institution :
Sch. of Autom. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A digital linear-phase finite-length impulse response (FIR) filter design method is proposed, which has adjustable frequency response. For this purpose, Farrow structure is employed in which the overall transfer function is a weighted linear combination of fixed subfilters and where the weights are directly determined by the input parameter. Optimal design technique is introduced which generates globally optimal overall filters in the Chebyshev sense over a whole set of filter specifications. An example is included in the paper to demonstrate the effectiveness.
Keywords :
Chebyshev filters; FIR filters; frequency response; optimisation; Chebyshev filters; Farrow structure; adjustable frequency response linear-phase filters; digital linear-phase finite-length impulse response filter design method; fixed subfilters; optimal design; transfer function; Algorithm design and analysis; Cutoff frequency; Filtering algorithms; Finite impulse response filters; Frequency measurement; Frequency response; FIR; Farrow structure; RC mismatch; adjustable frequency response; minimax optimization;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2013 IEEE 11th International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-0757-1
DOI :
10.1109/ICEMI.2013.6743092
