| 过程控制中的在线滤波问题 |
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| 引用本文： | 杨双华.过程控制中的在线滤波问题[J].中国石油大学学报(自然科学版),1987(3). |
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| 作者姓名： | 杨双华 |
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| 作者单位： | 华东石油学院自动化教研室 |
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| 摘 要： | 本文给出了一种确定加权滤波的权序列的程序。首先对噪声污染的量测序列用快速傅氏变换(FFT)方法作频谱分析,确定有用信号的截止频率,然后用哈明时窗函数确定滤波因子,即加权滤波的权序列。用该程序可以设计出与加权平均形式相同的在线数字滤波器,所加的权是根据噪声的性质设计的归一化的滤波因子。
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| 关 键 词： | 在线控制 数字滤波器 加权平均值 测量值 噪声 |
ON-LINE FILTERING IN PROCESS CONTROL |
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| Yang Shuanghua.ON-LINE FILTERING IN PROCESS CONTROL[J].Journal of China University of Petroleum,1987(3). |
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| Authors: | Yang Shuanghua |
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| Institution: | Yang Shuanghua |
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| Abstract: | This paper presents a program which can be used to design powers for on-line filtering. By means of Fast Fourier Transformation(FFT)spectrum analyses of the series polluted by noises are carried out and the cutting frequency of effective signal is determined. Filtering factors, power series, are obtained by use of function of Hamming time window. The on-line filter in the same way as average powers can be designed with given program. The power is the filtering factor designed on the basis of noise property. |
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| Keywords: | On-line Control Digital filter Weighted mean Measured values Noise |
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