关键词: 医护手环, 心电采集, 运动伪迹, 经验模态分解（EMD）, 运动状态分类

Abstract:  In remote medical treatment and domestic health, the Electrocardiogram（ECG） signal acquisition of medical bracelet, because of the user’s respiration and hand shake influence, it introduces motion artifacts. In order to remove the artifact of ECG signal, the EMD filtering is combined with the accelerometer signal. By the judgement and classification of user’s motion status, the proper threshold and the decomposition term of EMD filtering algorithm are selected to implement the processing of ECG signal. A better effective filtering result is yielded after using this filtering algorithm in the medical bracelet.

Key words: medical wrist, Electrocardiogram（ECG） acquisition, motion artifacts, Empirical Mode Decomposition（EMD）, motion status classification