近十年的研究表明,迟电位是心脏的一种特殊的、碎裂的延迟电活动,其与心肌梗塞后的室速及猝死有关。不少学者认为迟电位有重要研究价值。体表计算机叠加方法是一种较好的非创伤的检测方法。本文将对作者设计的微机迟电位体表检测系统的软件部分进行介绍。一、原理与系统简介迟电位信号非常微弱,即使采用高性能的放大器,信号仍将被淹没。将信号进行N次叠加后,信噪比将改善N~(1/2)倍。本检测系统包括硬件和软件两部分。信号由前置放大器 Nearly a decade of studies have shown that the late potentials are a special, fragmented delayed electrical activity of the heart that is associated with ventricular tachycardia and sudden death after myocardial infarction. Many scholars believe that late potential has important research value. Surface computer superposition method is a good non-invasive detection method. This article will introduce the author’s design of the computer late body surface detection system software section is introduced. First, the principle and system profile Late potential signal is very weak, even with high-performance amplifier, the signal will still be submerged. After the signal is superposed N times, the signal to noise ratio will be improved by N ~ (1/2) times. The test system includes hardware and software in two parts. Signal from the preamplifier