An analytical approach to the group delay compensation of digital IIR filters. - Piotr Okoniewski; Jacek Piskorowski (MMAR, 2012)

Stability analysis of linear time-varying IIR filter with equalized group delay characteristic. - Piotr Okoniewski; Jacek Piskorowski (MMAR, 2013)

A graphical user interface for designing time-varying IIR filters with equalized group delay. - Piotr Okoniewski; Jacek Piskorowski (MMAR, 2014)

A time-varying filters approach in reducing measurement time of multiple inertial sensors. - Piotr Okoniewski; Jacek Piskorowski (MMAR, 2016)

Experimental results of stable time-varying multi-notch filter. - Slawomir Kocon; Piotr Okoniewski; Jacek Piskorowski (MMAR, 2017)

Design of stable LTV multi-notch IIR filter with Lookup Tables. - Piotr Okoniewski; Slawomir Kocon; Jacek Piskorowski (MMAR, 2017)

Linear Time-Varying Multi-Notch FIR Filter for Fast EMG Measurements. - Piotr Okoniewski; Slawomir Kocon; Jacek Piskorowski (MMAR, 2018)

Allpass Based Multi-Notch IIR Filter with Equalized Group Delay. - Piotr Okoniewski; Slawomir Kocon; Jacek Piskorowski (MMAR, 2018)