Ultra Low-Power Biomedical Signal Processing

Download or read book Ultra Low-Power Biomedical Signal Processing written by Sandro Augusto Pavlik Haddad and published by Springer Science & Business Media. This book was released on 2009-05-26 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Often WT systems employ the discrete wavelet transform, implemented on a digital signal processor. However, in ultra low-power applications such as biomedical implantable devices, it is not suitable to implement the WT by means of digital circuitry due to the relatively high power consumption associated with the required A/D converter. Low-power analog realization of the wavelet transform enables its application in vivo, e.g. in pacemakers, where the wavelet transform provides a means to extremely reliable cardiac signal detection. In Ultra Low-Power Biomedical Signal Processing we present a novel method for implementing signal processing based on WT in an analog way. The methodology presented focuses on the development of ultra low-power analog integrated circuits that implement the required signal processing, taking into account the limitations imposed by an implantable device.