Key result
The Kaiser window (FIR) filter demonstrated more flexibility in realizing ECG signals compared to the Butterworth approximation (IIR) filter, effectively improving the signal-to-noise ratio.
Why the study?
To implement minimum order FIR and IIR filters using various window techniques for ECG signals and compare their performance in achieving linear phase response without phase distortion.
FIR filters using the Kaiser window offer greater flexibility for ECG signal processing and noise reduction compared to IIR Butterworth filters.
Low-level evidence on FIR/IIR filters leaves open optimal selection; does not support clinical adoption or research prioritization.
Over the last few decades, the use of digital signal processing has become increasingly popular in the digital world. This is mainly due to its ability to efficiently transform digital and/or analog signals, thereby reducing the cost associated with design and implementation. Filtering is typically used to remove noise from the desired signal. In signal processing, there are two main types of filters: finite impulse response (FIR) filters and infinite impulse response (IIR) filters. FIR filters have an impulse response of finite duration, meaning it settles to zero in a finite amount of time. On the other hand, IIR filters have an impulse response of infinite duration due to the use of feedback from previous output values, allowing them to achieve the same filtering characteristic as FIR filters with less memory and calculations.The goal of this project is to utilize various window techniques to implement minimum order FIR and IIR filters that meet specific specifications for Electrocardiogram (ECG) signals. By comparing the performance of both FIR and IIR digital filters, the project aims to assess their effectiveness in achieving a linear phase response and passing signals without phase distortion.
No takes yet. Share an insight, caveat, or question.
A 2023 study studied ECG signal noise. Kaiser window (FIR) filter vs. Butterworth approximation (IIR) filter was evaluated on Signal-to-noise ratio (SNR) and mean square error (MSE). The Kaiser window (FIR) filter demonstrated more flexibility in realizing ECG signals compared to the Butterworth approximation (IIR) filter, effectively improving the signal-to-noise ratio.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: