A low complexity, low power, programmable QRS detector based on wavelet transform for Implantable Pacemaker IC

This paper presents a QRS detector operating in multi-mode with low complexity, power saving consumption for implantable pacemaker IC. The complexity of detector is optimized after testing dynamic range of internal signals. Correspondingly, static power consumption is reduced significantly. The dynamic power consumption is saved by using down-sampling rate structure and turning off de- active filter banks bases on noise estimation. This QRS detector is evaluated with MIT-BIH Arrhythmia database archives >99% detection ratio. A soft IP core is prototyped on FPGA and synthesized by Samsung 0.18um standard library.