László Hejjel

Selecting the optimal anti-aliasing filter for multichannel biosignal acquisition intended for inter-signal phase shift analysis

Róbert Keresnyei, Péter Megyeri, Zoltán Zidarics, 2015, Physiological measurement.

On the Minimal Adequate Sampling Frequency of the Photoplethysmogram for Pulse Rate Monitoring and Heart Rate Variability Analysis in Mobile and Wearable Technology

László Hejjel, Szabolcs Béres, Lőrinc Holczer, 2019, Measurement Science Review.

Comment on ‘Photoplethysmography sampling frequency: pilot assessment of how low can we go to analyze pulse rate variability with reliability?’

László Hejjel, L. Hejjel, 2017, Physiological measurement.

The minimal sampling frequency of the photoplethysmogram for accurate pulse rate variability parameters in healthy volunteers

László Hejjel, Szabolcs Béres, L. Hejjel, 2021, Biomed. Signal Process. Control..

The application of surface plethysmography for heart rate variability analysis after GSM radiofrequency exposure.

László Hejjel, István Hernádi, Norbert Babai, 2006, Journal of biochemical and biophysical methods.

Heart rate asymmetry follows the inspiration/expiration ratio in healthy volunteers

László Hejjel, L. Hejjel, S. Szabados, 2012, Physiological measurement.