Analysis of noisy signal restoration quality with Lanczos filter

International Conference on Mechanical Engineering, Automation and Control Systems 2016

机械制造;无线电电子学;计算机科学

Belyaev, A.S.^1 ; Tutov, I.A.^1 ; Maykov, S.A.^1

Tomsk Polytechnic University, Lenina ave., 30, Tomsk

634050, Russia^1

关键词: Differential component;    Exponential moving averages;    Filtered signals;    Integrated square errors;    Noise dispersion;    Noise interference;    Sampling interval;    Signal dispersion;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/177/1/012016/pdf
DOI  :  10.1088/1757-899X/177/1/012016

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The differential component of the feedback is used to enhance dynamics of controlled mechanisms in control systems. However, the use of the differential component increases the noise interference, resulting in the need to use different filtering methods. This paper describes the research of a differentiated signal input in a differential Lanczos filter. The influence of the filter order on the integrated square error of the filtered signal is defined. The impact of signal dispersion and a sampling interval on the integrated square error of the filtered signal is identified. Moreover, the most convenient parameter values for the Lanczos filter are determined. The paper also includes the comparison of the exponential moving average filter and the Lanczos filter with selected values of noise dispersion and a sampling interval. The research shows the possibility to apply the Lanczos filter for processing of the differentiated signals.