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- Marek Jaskula, Roman Kaszynski
- IEEE Transactions on Instrumentation and…
- 2004

Processing of the brainstem auditory-evoked potential (BAEP) signal is achieved with a simple averaging over a number of realizations. The proposed filtering method of the BAEP signal is an extremely attractive alternative for long-duration examination with a repeated stimulus. Repetitive stimulation (20-30 times) allows additional averaging to be performed… (More)

- Miguel Ángel Gutiérrez de Anda, Arturo Sarmiento-Reyes, Luis Hernández-Martínez, Jacek Piskorowski, Roman Kaszynski
- IEEE Transactions on Circuits and Systems II…
- 2009

Linear time-varying (LTV) systems have found a niche of their own in the processing of continuous-time signals. In this brief, it is shown how the reduction of the duration of the transient response of a class of continuous-time LTV filters may be seen as the combined effect of the increased dampening of its amplitude response and the increase of the… (More)

- Roman Kaszynski
- ISCAS
- 2001

The filter of constant component with spectral-response characteristic having pass-band narrowed to frequency o = O and stop-band (with a tolerance) limited by frequency R is proposed. Under such filtration assumptions, different possibilities of synthesis for the filters with constant and variable parameters arise. As evaluation index of constant component… (More)

- Roman Kaszynski, Jacek Piskorowski
- 2005 IEEE Instrumentationand Measurement…
- 2004

The paper presents the methodology how to vary in time values omega<sub>0i</sub> = omega<sub>0i</sub>(t) in selected links of a structure of low-pass Bessel filters. In examinations of the filters a significant shortening of the transient state is achieved at the cost of slight increase in the oscillations. It allows to shorten time intervals of filtered… (More)

- Roman Kaszynski, Jacek Piskorowski
- IEEE Transactions on Instrumentation and…
- 2007

One important problem of signal processing in measurement systems is designing a filter that possesses a linear-phase response and, at the same time, has a short transient state. This paper presents the methodology of varying, in the time parameters, a low-pass Bessel filter and a filter of a constant component. In the proposed filters, significant… (More)

- Roman Kaszynski, Jacek Piskorowski
- 2006 IEEE Instrumentation and Measurement…
- 2006

One of the important problems of analog signal processing is to design the filters which possess linear phase characteristics. This paper presents the concept of time-varying Butterworth filters with linear phase response. The compensation of the phase characteristics is carried out with the aid of a phase shifter which is cascade-connected to the structure… (More)

- Jacek Piskorowski, Roman Kaszynski, Miguel Angel Gutierrez de Anda, Arturo Sarmiento-Reyes
- MELECON 2008 - The 14th IEEE Mediterranean…
- 2008

A classical problem in the field of filter theory is the construction of continuous-time filters which simultaneously possess constant group delay in the passband and steep amplitude selectivity. Such a kind of problem is usually solved using allpass filters which are able to compensate the group delay response without destroying the magnitude response.… (More)

- Roman Kaszynski, Jacek Piskorowski
- 2006 IEEE International Symposium on Industrial…
- 2006

One of the important problems of the analog signal processing is to design the filters which possess linear phase response in the frequency domain and at the same time the sharpness of the step response in the time domain. This paper presents theoretical concept of time-varying Butterworth filters with equalized group delay response. The compensation of the… (More)

- Roman Kaszynski, Jacek Piskorowski
- MELECON 2006 - 2006 IEEE Mediterranean…
- 2006

This paper presents theoretical concept of time-varying Butterworth filters with compensated group delay response. The compensation of the phase characteristics is carried out with the aid of a phase shifter which is cascade-connected to the structure of the classic Butterworth filter. The parameters of the phase shifter were calculated in this way that the… (More)

- Roman Kaszynski
- ISCAS
- 2003