Dry ECG Dataset: Normal-recorded Signals and Interference-Affected Records

The dataset consists of 149 ECG signals that were sampled at a frequency of 500 Hz using a single lead. The main objective is to identify and differentiate normal-recorded ECG signals from those affected by two common types of interference: 50/60 Hz power line interference . electrode contact noise caused by unstable movement. The data was recorded using the Orbital 90 dry electrode, which has a 25 mm conductive area diameter based on the three electrodes configurations to measure the potential difference between the two arms, with the right leg serving as the reference. In order to improve signal quality, a fourth-order Butterworth low-pass filter was utilized for its smooth frequency response and minimal phase distortion, followed by a notch filter to eliminate 50 Hz power line noise. These filtering processes significantly enhanced the ECG signal quality by reducing noise and interference while preserving important cardiac information. The recorded data was stored in CSV format using UART communication via a USB connected to a computer. Dataset Summary Type of Record Number of Records well-recorded ECG 42 50/60 Hz power line interference 44 electrode contact noise 63 Total 149 For more details please feel free to contact us : [e-mail] [e-mail] [e-mail] [e-mail]本数据集包含149路单导联心电图（Electrocardiogram, ECG）信号，采样频率为500 Hz。 本数据集的核心目标为识别并区分正常采集的心电图信号，与受两类常见干扰影响的信号：50/60 Hz工频干扰，以及由运动不稳定引发的电极接触噪声。 数据采集采用Orbital 90干电极，该电极导电区域直径为25 mm，采用三电极配置测量双臂间电位差，以右腿作为参考电极。为提升信号质量，研究人员使用了四阶巴特沃斯低通滤波器（凭借其频响平滑且相位失真极小的特性），搭配陷波滤波器以去除50 Hz工频噪声。该滤波流程通过抑制噪声与干扰、保留关键心脏生理信息，显著改善了心电图信号质量。采集所得数据通过USB连接电脑，采用UART通信协议存储为CSV格式。 数据集摘要 记录类型 记录数量 正常采集心电图 42 50/60 Hz工频干扰 44 电极接触噪声 63 总计 149 如需了解更多细节，请随时联系我们： [e-mail] [e-mail] [e-mail] [e-mail]