title: Power-efficient cross-correlation beat detection in electrocardiogram analysis using bitstreams.
abstract: In this paper, we present a novel cross-correlator chip suitable for "smart" ECG electrodes. Sophisticated QRS-detection is feasible exploring multicomponent-based cross-correlation and by exploiting the simplicity offered by bitstream processing. The chip is evaluated using real ECG signals as an example application. Power-efficient running cross correlation is obtained with novel asynchronous circuit solutions consuming approximately 730 μ W while processing ECG data sampled at a rate of 250 Hz. The implemented generic cross-correlator may be explored for other pattern-matching applications in wireless sensor networks or other low-power applications.
authors.forename: Olav E
authors.initials: OE
authors.lastname: Liseth
authors.forename: Daniel
authors.initials: D
authors.lastname: Mo
authors.forename: Håkon A
authors.initials: HA
authors.lastname: Hjortland
authors.forename: Tor Sverre
authors.initials: TS
authors.lastname: Lande
authors.forename: Dag T
authors.initials: DT
authors.lastname: Wisland