| 基于自适应陷波技术的心电图工频干扰抑制研究 |
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| 引用本文： | 王淑艳,董健,关欣. 基于自适应陷波技术的心电图工频干扰抑制研究[J]. 生物医学工程学杂志, 2008, 25(5) |
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| 作者姓名： | 王淑艳 董健 关欣 |
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| 作者单位： | 1. 中国民航大学,天津市智能信号与图像处理重点实验室,天津,300300
2. 天津大学,电子信息工程学院,天津,300072 |
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| 基金项目： | 天津市自然科学基金资助项目(06YFJMJC00800);;校科研启动基金资助项目(06qd09s) |
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| 摘 要： | 我们研究了一种基于QR分解最小二乘（QRD-LS）算法自适应陷波技术的ECG工频干扰抑制法，其充分利用了自适应滤波器自动跟踪干扰的能力，自动消除工频干扰，提高信噪比。而且此方法采用直接针对输入数据矩阵进行递推的QRD-LS算法进行权值的训练和更新，有很好的数据稳定性，且可用并行Systolic处理结构高效地实现，因此ECG工频干扰抑制法有很强的实用性。仿真实验表明该方法具有传统基于LMS算法自适应陷波器所无法比拟的优点，工频干扰滤除效果更佳。
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| 关 键 词： | 心电图 工频干扰 QRD-LS算法 自适应陷波器 |
Research of Adaptive Notch Filter Based on QRD-LS Algorithm for Power Line Interference in ECG |
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| Wang Shuyan,Dong Jian,Guan Xin. Research of Adaptive Notch Filter Based on QRD-LS Algorithm for Power Line Interference in ECG[J]. Journal of biomedical engineering, 2008, 25(5) |
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| Authors: | Wang Shuyan Dong Jian Guan Xin |
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| Affiliation: | Tianjin Key Lab for Advanced Signal Processing;Civil Aviation University of China;Tianjin 300300;China;School of Electronic Information Engineering;Tianjin University;Tianjin;300072;China |
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| Abstract: | In this paper, an adaptive notch filter based on QRD-LS algorithm for power line interference in ECG is researched. It can automatically eliminate the power line interference in order to improve the signal-to-interference ratio. Furthermore, QLD-LS algorithm, which is recursive least-squares minimization using systolic arrays, is employed to adjust the weight vector. Compared with the adaptive notch filter based on LMS (least mean square) algorithm, it has good robustness. Simulation examples confirm the re... |
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