Title :
Comparison of various implementations of Digital Filters
Author :
Matousek, David ; Brtnik, Bohumil
Author_Institution :
Dept. of Electr. Eng., Univ. of Pardubice, Pardubice, Czech Republic
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;
Conference_Titel :
Radioelektronika (RADIOELEKTRONIKA), 2014 24th International Conference
Conference_Location :
Bratislava
Print_ISBN :
978-1-4799-3714-1
DOI :
10.1109/Radioelek.2014.6828481
