Abstract: This paper introduces the design of a T-wave alternans detection system based on wireless transmission and USB interface. The system first amplifies the ECG signal with an amplifier amplification factor of 2000 times and a common mode rejection ratio of 80db. The amplified signal is sampled by 12-bit AD and then transmitted to the JPC processing end via wireless transmission and USB bus. At the processing end, the spectrum analysis method is used to detect T-wave alternans. Experimental results show that the system has a high data transmission rate and real-time data processing capability, and can realize the measurement of microvolt T-wave alternans.
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