Abstract
To collect accurate human Electrocardiogram (ECG) signal in complex scenarios and use them for subsequent disease pathology analysis by our laboratory team, we have designed a multi-channel acquisition system with adjustable gain, easy portability, and adaptability to most applications. The whole acquisition system is divided into the Electrode Group, Analog Front End (AFE), and the Data Storage System(DSS). The AFE uses a secondary amplification circuit as well as band-pass filtering and notch filtering circuits. The data storage side is an FPGA-based system design that realizes the functions including AD conversion, real-time display, and storage of data. Experiments show that this system can realize multi-channel and portable acquisition and storage of ECG signal under complex scenarios.
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