A surface electrocardiogram (ECG) is a plot of surface bio-potential caused due to electrical activity of the heart. It is a noninvasive tool widely used for many years for basic cardiac monitoring in a clinical set-up. With advances in technology, the ECG recording equipment are available in a smaller formfactor with some useful features like digital storage and wireless transmission of the recorded signals. Due to this improvement it is now practically possible to develop wearable ECG equipment for cardiac monitoring in ambulatory conditions. In this chapter we provide some background on electrocardiogram (ECG) signal and the relevant topics in the work related to analysis of ambulatory ECG signal. A brief summary on electrocardiogram (ECG), a discussion on a distinct set of artifacts in ECG signal, challenges in analysis of ECG due to the motion artifacts, a mathematical model of ambulatory ECG signal adopted in this work, and a tour of the monograph are given here in the subsequent sections.
KeywordsDepression Ischemia Foam Covariance Respiration
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