Title :
Architecture of a high-speed hierarchical structure transversal filter
Author :
Kawahashi, Akiyoshi ; Nakamura, Shogo ; Horio, Yoshihiko ; Kadowaki, Yukio
Author_Institution :
Dept. of Electr. Eng., Tokyo Denki Univ., Japan
Abstract :
An architecture of a high-speed linear phase finite impulse response (FIR) filter is described. This filter can provide an output equivalent to that of a higher-order FIR digital filter due to using a number of lower-order linear phase cascaded integrator comb subfilters or linear phase cascaded differential comb subfilters. It is shown that the design of the filter can be replaced with that of a simple subfilter by using a multiple mapping function. Thus, it is considered that the proposed architecture has the potential to make the design of a higher-order FIR filter easy. As an example, this filter, equivalent to a conventional linear phase FIR filter with about 11-45 filter lengths, has been designed and implemented into an LSI. The realized filter has a maximum sampling rate of 15 MHz
Keywords :
cascade networks; digital filters; network synthesis; 15 MHz; digital filters; high-speed hierarchical structure transversal filter; linear phase FIR filter; linear phase cascaded differential comb subfilters; lower-order linear phase cascaded integrator comb subfilters; Delay; Digital filters; Equations; Finite impulse response filter; Frequency; Information filtering; Information filters; Large scale integration; Nonlinear filters; Transversal filters;
Conference_Titel :
Systems Engineering, 1992., IEEE International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-0734-8
DOI :
10.1109/ICSYSE.1992.236886