中文摘要：

本文介绍了一个基于无线传输和USB接口相结合的T波电交替检测系统的设计。该系统首先对心电信号进行放大,放大器放大倍数为2000倍,共模抑制比为80db。放大后的信号经过12位AD采样再经过无线传输和USB总线传输到PC处理端。在处理端,利用谱分析方法对T波交替进行检测。实验结果表明,该系统具有高数据传输速率和实时数据处理能力,能够实现微伏T波电交替的测定。

英文摘要：

In this paper,a T wave alternans detection system based on wireless and USB communication is presented.The ECG signal is amplified in the first step.The amplifier has a gain of 2000 and the CMRR is 80dB.Then the signal is sampled with a 12-bit AD converter.At last,the sample result is transmitted to the PC via wireless communication and USB bus. In the PC,the T wave alternans are detected using the spectral method.Results show that this system has high data transmission rate and real time data processing ca...