Aort valve Doppler signal noise elimination using IIR filter designed with ABC algorithm

Abstract

The heart valves are most important parts of the heart. The biomedical signals such as aortic valve Doppler signals are sensitive to noise and interference. In this paper, aortic valve Doppler noise is eliminated with an infinite impulse response (IIR) filter. Filter coefficients were determined with sampled aortic signal using a swarm intelligence algorithm, artificial bee colony, and the designed filters eliminate noise on aortic cycle signal. 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">nd</sup> and 4 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sup> degree infinite impulse response filters were designed with artificial bee colony algorithm.