Navada, Bhagya R. and Venkata, Santhosh K (2021) Filter Design Using Data Fusion for a Pneumatic Control Valve. Serbian Journal of Electrical Engineering, 18 (1). pp. 49-61. ISSN 1451-4869

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Abstract

This paper presents a filter design technique for a pneumatic valve usingdata fusion techniques. The objective of this paper is to examine the suppression of the effect of parameters causing deviation from normal system performanceusing the technique of data fusion over time. The output of a system affected byinherited noise is processed by applying operations such as finding the statisticalvariance, time warping, interpolation, and extrapolation. These techniques are used to compute the transfer function of the filter, which when cascaded with thesystem will suppress the effect of noise on the process. The operation of the controlvalve is affected by characteristics such as stiction, structural deformation, etc. The characteristics of the system are studied and data for multiple time instances are extracted to carry out fusion across time by dynamic time warping. Tests show that the filter presented here can suppress the effects of stiction and mechanicaldeformation on the output signa

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