| 一种改进的LMS滤波器在DCG去噪中的应用 |
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| 引用本文： | 姜凤茹.一种改进的LMS滤波器在DCG去噪中的应用[J].微计算机应用,2011,32(10):76-80. |
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| 作者姓名： | 姜凤茹 |
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| 作者单位： | 河南商业高等专科学校 计算机应用系 郑州450044 |
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| 摘 要： | 研究了LMS自适应滤波器在动态心电信号去噪中的应用。提出了一种适合动态心电信号预处理的变步长LMS改进算法,该算法用误差信号对期望信号的相对误差的平方根来调节步长。实验表明,这种改进滤波器在收敛速度和信噪比两方面都优于固定步长的滤波器。
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| 关 键 词： | 动态心电信号 LMS算法 去噪 |
The Application of a Improved LMS Filter on DCG De -noising |
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| JIANG Fengru.The Application of a Improved LMS Filter on DCG De -noising[J].Microcomputer Applications,2011,32(10):76-80. |
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| Authors: | JIANG Fengru |
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| Affiliation: | JIANG Fengru(Department of Computer Application,Henan Business College,zhengzhou,450044,China) |
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| Abstract: | The application of a LMS adaptive filter on dynamic electrocardiogram(DCG) de-noising is studied.A variable step size LMS improved algorithm is proposed,which is suitable for signal preprocessing of DCG.It adjusts step size with square root of relative error:error to expectations.The experiments show that the improved filter is better than fixed-step filter in both convergence speed and SNR. |
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| Keywords: | DCG LMS algorithm de-noising |
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