Title :
A simple method for designing a hierarchical structure transversal filter
Author :
Kawahashi, Akiyoshi ; Nakanura, Shogo ; Horio, Yoshihiko ; Kadowaki, Yukio
Author_Institution :
Dept. of Electron. Eng., Tokyo Denki Univ., Japan
Abstract :
A simple method for designing a hierarchical structure transversal filter (HSTF) with a linear phase is described. The HSTF can provide an output equivalent to a higher-order FIR (finite impulse response) digital filter due to using a number of lower-order FIR digital subfilters. Designing of the HSTF is required only to determine a low-order FIR subfilter provided that a multiple mapping function is given. Therefore, this method can save a lot of computation in the design of an FIR filter with a long length. This structure is also suitable for parallel processing concerned with the subfilters and an LSI implementation
Keywords :
computerised signal processing; digital filters; LSI implementation; filter design; hierarchical structure transversal filter; linear phase; lower-order FIR digital subfilters; multiple mapping function; parallel processing; signal processing; Design engineering; Design methodology; Digital filters; Finite impulse response filter; Frequency; Large scale integration; Nonlinear filters; Parallel processing; Stability; Transversal filters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150791
