Comparison of various implementations of Digital Filters

Author

Matousek, David ; Brtnik, Bohumil

Author_Institution

Dept. of Electr. Eng., Univ. of Pardubice, Pardubice, Czech Republic

fYear

2014

fDate

15-16 April 2014

Firstpage

1

Lastpage

4

Abstract

This paper deals with comparison of various implementations of Digital Filters. Two band-pass filters are designed by bilinear transform and verified by MicroCap. A finite number of digits is discussed, too. Frequency responses of various implementations (fixed-point arithmetic, lookup table, floating-point and fractional arithmetic) of these filters are measured and plotted. Finally, requirements and final parameters of various implementations are compared. For implementation of filters were used microcontrollers ATmega or PIC32MX.

Keywords

band-pass filters; digital filters; transforms; MicroCap; bilinear transform; digital filters; finite number; fixed-point arithmetic; floating-point; fractional arithmetic; lookup table; microcontrollers ATmega; microcontrollers PIC32MX; two bandpass filters; Band-pass filters; Digital filters; Digital signal processing; Frequency measurement; Frequency response; Microcontrollers; Resource management; ATmega; PIC32MX; SQNR; bilinear transform; fixed-point arithmetic; floating-point aritmetic; fractional arithmetic; lookup table;

fLanguage

English

Publisher

ieee

Conference_Titel

Radioelektronika (RADIOELEKTRONIKA), 2014 24th International Conference

Conference_Location

Bratislava

Print_ISBN

978-1-4799-3714-1

Type

conf

DOI

10.1109/Radioelek.2014.6828481

Filename

6828481