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Non-integer-order exponential filters: definitions in the time-domain and frequency-domain

作     者:Nako, Julia Psychalinos, Costas Elwakil, Ahmed S. 

作者机构:Univ Patras Dept Phys Elect Lab GR-26504 Rion Greece Univ Sharjah Dept Elect Engn POB 27272 Sharjah U Arab Emirates Univ Calgary Dept Elect & Software Engn Calgary AB T2N 1N4 Canada Nile Univ Nanoelect Integrated Syst Ctr NISC Giza 12677 Egypt 

出 版 物:《NONLINEAR DYNAMICS》 (Nonlinear Dyn)

年 卷 期:2025年

页      面:1-14页

核心收录:

学科分类:08[工学] 0802[工学-机械工程] 0801[工学-力学(可授工学、理学学位)] 

基  金:Hellenic Foundation for Research and Innovation (HFRI) 

主  题:Analog filters Gaussian filters Exponential filters Fractional-order filters Power-law filters Impulse response Field Programmable Analog Array 

摘      要:Integer and non-integer-order exponential filters defined in both the time and frequency-domains are investigated in this work. These filters are then approximated utilizing a curve-fitting method leading to a rational integer-order approximating transfer function. The accuracy of the approximation of the exponential filters is confirmed through experimental results obtained using a Field Programmable Analog Array device. A real life application example is also provided, where one of the presented filters is employed for denoising an electrocardiogram signal.

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