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Document Type : Latin Dissertation
Language of Document : English
Record Number : 151768
Doc. No : ET23560
Main Entry : BRION CHRISTOPHER FINLAY
Title Proper : DETERMINATION OF -T SOUNDS FROM ACCELEROMETER SIGNALS
Note : This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract : This thesis investigates the detection of heart sounds h m accelerometer signalsfound in implantable cardiac pacemakers. The detection algorithm creates an envelope ofa filtered, signal-averaged accelerometer signal and then uses a threshold algorithm fordetection. Three envelope techniques are investigated, a signal envelope, a Liangnormalized energy envelogratn, and an enhancement to the Liang normalized energyenvelogram that incorporates a high pass filter. Two thresholding techniques areinvestigated, a threshold calculated using moving averages and a threshold calculatedusing a bimodal Kippler-lllingswarth technique. Each threshold technique was used witheach envelope technique on nine diffint patient data sets to generate six different resultsets, The Liang energy envelogram with the high.......-....,....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject : Electericl tess
: برق
electronic file name : TL46802.pdf
Title and statement of responsibility and : DETERMINATION OF -T SOUNDS FROM ACCELEROMETER SIGNALS [Thesis]
 
 
 
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