Mihov, Slavy Georgiev; Михов, Слави Георгиев; Ivanov, Ratcho Marinov; Иванов, Рачо Маринов; Popov, Angel Nikolaev; Попов, Ангел Николаев
Implementation of real time power-line interference removal procedure from ECG
2008
Proceedings of the Technical University – Sofia, 58(2), 2008, pp. 21-30
Технически университет - София
1311-0829 [issn]
Article
eng
Presented is the algorithm of the subtraction method for removing powerline interference from ECG signals, in case of powerline frequency variations. The existing MatLab prototype version is adapted for real time execution on DSP and programmable logic (FPGA) platforms. The algorithm is ported and experimented in case of odd sample number in one period of the interference. The corresponding formulas for even sample number are given too. Test results of the prototype MatLab code and its two implementations (for DSP and FPGA) show that the presented real time algorithms successfully compensate the presence of powerline frequency interfering the ECG signal. Given are the changes in the DSP port of the algorithm and the generated structure by the FPGA configuration code.
Reviewer prof. Georgy Mihov. - Formulas, schemes, diagr - References, pp. 30