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运动心电信号是反映运动时人体心脏负荷状况的重要信息，准确表述运动心电信号特征对于更好评价运动负荷实验是很有意义的，介绍了维格纳时频分析的原理与算法实现，将维格纳分布应用到运动心电信号的分析中，得到一些有益的结论，在时颇平面上研究运动心电信号特征变化是一个较好的途径。
Exercise ECG signal is an important information reflecting the state of human heart load during exercise. Accurately expressing the characteristics of exercise ECG signal is of great significance for better evaluation of exercise load experiments. The principle and algorithm implementation of Wignerton time-frequency analysis are introduced. Applying Wigner distribution to the analysis of exercise ECG signals, some useful conclusions have been obtained. It is a good way to study the characteristic changes of exercise ECG signals on a time scale.