Efficient multirate realization for narrow transition-band FIR filters

Author

Ramstad, Tor A. ; Saramaki, Tapio

Author_Institution

Dept. of Electr. & Comput. Eng., Norwegian Inst. of Technol., Trondheim, Norway

fYear

1988

fDate

7-9 June 1988

Firstpage

2019

Abstract

A filtering technique for reducing the computational complexity in FIR (finite-impulse-response) filters at any bandwidth is described. This technique uses a combination of multirate and complementary filters. It is shown that the resulting computational complexity is almost independent of the transition bandwidth of the filter, but depends somewhat on the cutoff frequency. It is concluded that any reasonable filter specification can be met by using about 45 multiplications per sample.<>

Keywords

circuit CAD; computational complexity; digital filters; complementary filters; computational complexity; cutoff frequency; filtering technique; multirate realization; narrow transition-band FIR filters; transition bandwidth; Band pass filters; Bandwidth; Computational complexity; Delay; Filtering; Finite impulse response filter; Frequency; IIR filters; Narrowband; Passband;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1988., IEEE International Symposium on

Conference_Location

Espoo, Finland

Type

conf

DOI

10.1109/ISCAS.1988.15338

Filename

15338

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2431649