Projects per year
Capacitive electrodes can be employed for noninvasive electrocardiography (ECG) measurements; they are especially suitable for long-term ambulatory monitoring. However, capacitive electrodes are very sensitive to motion artifacts (MAs) due to variable coupling distance. Adaptive filtering has been widely used for optimal MA reduction in biopotential measurements. Unfortunately, the existing adaptive-filtering methods require a reference signal recorded by additional sensors, limiting their applicability in ambulatory settings. In the present study, a novel adaptive MA removal method is proposed where the reference signal is extracted from the power-line interference (PLI). PLI usually appears in ECG measurements due to unbalanced electrode impedance. Movement of the electrodes causes not only MAs but also variations in the PLI. Demodulation of the PLI may, therefore, represent a reference signal reflecting the sensor movement for adaptive MA removal by signal decorrelation. Preliminary validation on both simulation and real data showed effective MA removal by the proposed adaptive filter, possibly leading to improved analysis of capacitive ECG signals in ambulatory settings.
|Title of host publication||2018 IEEE International Symposium on Medical Measurements and Applications (MeMeA)|
|Place of Publication||Piscataway|
|Publisher||Institute of Electrical and Electronics Engineers|
|Number of pages||5|
|Publication status||Published - 16 Aug 2018|
|Event||13th Annual IEEE International Symposium on Medical Measurements & Applications - Rome, Italy|
Duration: 11 Jun 2018 → 14 Jun 2018
|Conference||13th Annual IEEE International Symposium on Medical Measurements & Applications|
|Abbreviated title||IEEE MeMeA 2018|
|Period||11/06/18 → 14/06/18|
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- 1 Finished
Enabling widespread ambulatory monitoring for improved pregnancy outcome
Mischi, M., Xu, L., van der Hout-van der Jagt, M. B., van der Ven, M., van de Griendt, J. & van der Hagen, D.
1/03/16 → 30/11/21
Project: Research direct