Open Science Research Excellence

Wei Ting Liu

Publications

1

Publications

1
1231
Coherence Analysis between Respiration and PPG Signal by Bivariate AR Model
Abstract:

PPG is a potential tool in clinical applications. Among such, the relationship between respiration and PPG signal has attracted attention in past decades. In this research, a bivariate AR spectral estimation method was utilized for the coherence analysis between these two signals. Ten healthy subjects participated in this research with signals measured at different respiratory rates. The results demonstrate that high coherence exists between respiration and PPG signal, whereas the coherence disappears in breath-holding experiments. These results imply that PPG signal reveals the respiratory information. The utilized method may provide an attractive alternative approach for the related researches.

Keywords:
Coherence analysis, photoplethysmography (PPG), bivariate AR spectral estimation.