Research on Design Method of ECG Filter Based on Multisim 14

Analog filters are an indispensable front-end noise reduction method in signal monitoring, control, and other fields. This paper uses suitable integrated operational amplifiers, resistances and capacitors to design an ECG (Electrocardiogram signal) filter, which can filter out the interference signals such as baseline drift, myocardial disturbance and 50 Hz frequency of the original ECG signal. The ECG signal of Multisim 14 Agilent function generator is used as a simulation signal source, and the designed circuit is simulated and tested. The simulation results confirmed the correctness and accuracy of the design, providing a reference for the design of high-performance complex analog filters.