提出了一种基于中值滤波的脑事件关联电位单次提取方法 .刺激方式为奥德勃模式 ,直接用真实的数据进行实验 .在分析背景噪声的基础上 ,将单次记录到的原始信号用中值滤波器进行处理 ,然后对结果进行低通平滑 .实验结果表明 ,该方法具有良好的单次提取效果及很强的适应性和稳健性 This paper proposes a single extraction method of brain event-related potential based on median filter.The stimulus method is the Odd mode, which is directly tested with real data.On the basis of analyzing the background noise, the original signal The median filter is used to process the result, then the result is low-pass smooth.The experimental results show that this method has a good single-extraction effect and strong adaptability and robustness