Slawomir Kocon

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In this paper a digital FIR notch filter used for removing power-line interference from biomedical recordings is presented. A concept of finite impulse response narrow bandstop time-varying filter with non-zero initial conditions, based on linear Kalman notch prototype filter, is proposed. In order to reduce the duration of the transient response of the(More)
In this paper a concept of time-varying finite impulse response narrow band-stop (notch) filter with improved dynamic behaviour, based on infinite impulse response filter prototype, is proposed. In order to reduce the amplitude of the transient response of the proposed FIR notch filter the pole radius of the IIR filter prototype is temporarily varied in(More)
In this paper a concept of infinite impulse response narrow multi-band-stop time-varying filter based on all-pass prototype filter is proposed. The IIR multi-notch filter is used for removing power-line interferences from biomedical sources such as ECG. In order to reduce the duration of the transient state of the proposed IIR multi-notch filter, the(More)
In this paper a hardware implementation of the finite impulse response narrow band-stop time-varying filter based on the infinite impulse prototype filter is proposed. The notch filter is used for removing power-line interferences from biomedical source, i.e. ECG signal. In order to suppress the transient state of the proposed filter, the pole radius and(More)
The paper presents a concept of designing a stable time-varying IIR narrow multi-band-stop filter. The proposed structure is based on an all-pass prototype. The stability analysis of the time-varying design is presented. In order to reduce the transient time, the varying rejection bandwidth in time is introduced. The paper also presents the idea of the(More)
In this paper a concept of finite impulse response narrow multi-band-stop filter with non-zero initial conditions based on linear Kalman prototype filter is proposed. The FIR multi-notch filter is used for removing power-line interferences from biomedical sources such as ECG. In order to reduce the duration of the transient state of the proposed FIR(More)
This paper presents experimental results of a stable time-varying IIR narrow multi-band-stop filter. The design and stability check procedures have been shown. The experimental hardware used to conduct the measurement of the ECG was presented. The concept of the time-varying coefficients was used in order to reduce the transient time of the filtering(More)
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