title: An efficient ECG baseline removal filter based on frequency response masking technique for wearable applications.
abstract: This paper presents a computationally efficient FIR (finite impulse response) filter for ECG (electrocardiogram) baseline wander removal. The proposed filter is based on frequency-response masking (FRM) technique, which reduces the number of multiplications by 90% compared to the conventional FIR filter. The filter specifications are optimized to obtain the highest SNR (signal-to-noise ratio) while minimizing the number of filter coefficients. The SNR performance of the proposed filter is evaluated using ECG signals from MIT-BIH Arrhythmia Database with added baseline noises from MIT-BIH Noise Stress Test Database. Simulations show that the FRM filter is capable of removing most of baseline wander while preserves ECG signal.
authors.lastname: Boxiao Liu
authors.lastname: Guoxing Wang
authors.lastname: Yong Lian
mesh_terms: D000465:Algorithms; D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D016208:Databases, Factual; D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods*; D005080:Exercise Test; D006801:Humans; D012815:Signal Processing, Computer-Assisted; D059629:Signal-To-Noise Ratio