On-line subtraction method for mains interference from ECG signals with signal processor

Abstract

In this article we described the subtraction method for removing mains interference from ECG signals and realized its algorithm in real time by digital signal processor. Tree filtering procedures included in our algorithm are organized as separate modules, which permit us to apply various types of filters without changing the main structure of the algorithm. This organization is very useful and gives us a possibility to analysis and optimization of the subtraction method.