| 改进包络滤波算法及在电路信号中的应用 |
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| 引用本文： | 林德荣,赖添悦,林琼斌,王 武.改进包络滤波算法及在电路信号中的应用[J].福州大学学报(自然科学版),2017,45(3):362-366. |
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| 作者姓名： | 林德荣 赖添悦 林琼斌 王 武 |
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| 作者单位： | 福州大学电气工程与自动化学院；福州大学先进控制技术中心,福州大学电气工程与自动化学院；福州大学先进控制技术中心,福州大学电气工程与自动化学院；福州大学先进控制技术中心,福州大学电气工程与自动化学院；福州大学先进控制技术中心 |
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| 基金项目： | 福建省自然科学基金资助项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 分析多次采样取平均值和经典的包络均值方法,指出这两种方法的优缺点.提出改进的增量包络均值滤波(I-EMF)算法:先将采样信号递归平均重建,以削弱幅值过高的噪声信号点;然后在实时提取的重建信号上下包络中引入合理的衰减量;最后计算包络均值作为真实信号的估计值.通过仿真分析和实验验证,该算法具有较好的信号处理与去噪性能.
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| 关 键 词： | 反馈信号 信号去噪 包络滤波 信号检测 |
| 收稿时间： | 2016/3/12 0:00:00 |
| 修稿时间： | 2016/5/4 0:00:00 |
Improved envelope filtering algorithm and its application in the circuit of signal |
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| LIN Derong,LAI Tianyue,LIN Qiongbin and WANG Wu.Improved envelope filtering algorithm and its application in the circuit of signal[J].Journal of Fuzhou University(Natural Science Edition),2017,45(3):362-366. |
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| Authors: | LIN Derong LAI Tianyue LIN Qiongbin and WANG Wu |
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| Abstract: | According to the feedback signal processing in digital closed-loop control system.Using multiple sampling average or over sampling technology, not only the amount of computation is larger,and the number of sampling points of different filtering effects will be different.In this paper, an improved incremental algorithm based on envelope mean filter (I-EMF) is proposed:First, recursive average reconstruction of sampled signals,In order to weaken the noise signal at high amplitude.Reasonable attenuation is then introduced in the real time extraction of the reconstructed signal.Finally, the estimated value of the envelope is estimated as the real signal.Through simulation analysis and experimental verification,show that the this algorithm has better denoising performance and signal processing, which provides a new method for feedback processing of sampling signal. |
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| Keywords: | Feedback signal signal denoising envelope filter signal detection |
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