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Chiagunye, T. T.
Computer Engineering Department, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria.
Ede, C. C.
Computer Engineering Department, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria.
ABSTRACT
This research work “Design and implementation of a Microcontroller-based
digital filter “is aimed at designing and Implementing the single pole low
pass, high pass and band pass filter using PIC Microcontroller. The system
derived was modeled and simulated with the aid of MATLAB 7.5. The work involved
the design and implementation of digital filters in the frequency domain, using
a user-friendly based working environment on a MATLAB platform. Here, the
required system equations and expressions were incorporated into the program
code and operational flowcharts were designed for the sequential lines of code.
The codes were written in MATLAB 7.5, thereby deriving the m-file that
constituted the system. Secondly, a low-level program (assembly language) is
used to program the PIC Microcontroller to implement the filtering task. The
microcontroller processes an Audio signal and output a digitally filtered audio
and visual output using speakers and LCD.The research work thereafter, serves
as a training kits for both lecturers and students.
Keywords: Filter, High pass, band pass, Microcontroller, MATLAB, Signal.
https://doi.org/10.33922/j.ujet_v6i2_5
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Published
Friday, January 22, 2021
Issue
Vol. 6 No. 2, December 2020
Article Section
GENERAL
The contents of the articles are the sole opinion of the author(s) and not of UJET.
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