A New Application of Lock In Amplifier-Adaptive Noise Canceller

摘要：

this paper introduced an algorithm to track and eliminate the power line interference. The model of the algorithm came from the lock-in-amplifier (LIA) hardware circuit. Inheriting the LIAs excellency of inhibiting the noise, this algorithm could precisely detect the amplitude, frequency and phase of the interference signal in the corrupted ECG. This algorithm, which does not need to avoid the QRS complex, could track and eliminate interference signals ranging from 48Hz-52Hz. We made two experiments to test the performance of the algorithm. The first test data came from MIT-BIH, which had been corrupted by artificial interference signals. The second test data was the actual ECG signal. Both the results proved to be satisfactory.

关键词： noise canceller track power line interference Lock In Amplifier

作者: Tangji Tong Ying Chen Jianjun Tong Xinbao Ning

作者单位: Institute for Biomedical Engineering Nanjing University Nanjing,China New development department XiJiao Redianchang Xian,China

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）