Results 221 to 230 of about 24,882 (266)

Simulation of Fractional-Order Low-Pass Filters

IEEE/ACM Transactions on Audio, Speech, and Language Processing, 2014
The attenuation of standard analog low-pass filters corresponds to a multiple value of -6 decibels per octave. This quantified value is related to the order of the filter.The issue addressed here is concerned with the extension of integer orders to non integer orders, such that the attenuation of a low-pass filter can be continuously adjusted ...
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Fractional-order passive low-pass filters

10th IEEE International Conference on Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003, 2004
This paper numerically investigates the behavior of passive RC low pass filters when the capacitive element acquires a fractional order. The effect of the fractional capacitor on time and frequency-domain responses is studied. We demonstrate that second-order-type characteristics can be obtained from a fractional RC circuit fractional order between 1 ...
Wajdi Ahmad, Reyad El-Khazali
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Fractional‐order electronically controlled generalized filters

International Journal of Circuit Theory and Applications, 2016
SummaryNovel topologies of fractional‐order generalized filters are introduced in this paper. These offer the following benefits: (1) realization of lowpass, highpass, bandpass, allpass, or bandstop filter functions by the same topology; (2) resistorless realizations; (3) electronic adjustment of their frequency characteristics as well as their order ...
Georgia Tsirimokou, Costas Psychalinos, Ahmed S. Elwakil   +2 more
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On The Optimization of Fractional Order Low-Pass Filters

Circuits, Systems, and Signal Processing, 2016
This paper presents three different optimization cases for normalized fractional order low-pass filters (LPFs) with numerical, circuit and experimental results. A multi-objective optimization technique is used for controlling some filter specifications, which are the transition bandwidth, the stop band frequency gain and the maximum allowable peak in ...
Lobna A. Said, Samar M. Ismail, Ahmed G. Radwan, Ahmed H. Madian, Mohamed Fathy Abu El-Yazeed, Ahmed M. Soliman   +5 more
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Experimental Verification of Fractional-Order Filters Using a Reconfigurable Fractional-Order Impedance Emulator

Journal of Circuits, Systems and Computers, 2017
Fractional-order filter design examples, realized through the substitution of fractional-order capacitors and inductors by a re-configurable active emulator, are presented in this paper. The implementation of the emulator is achieved using Current Feedback Operational Amplifiers (CFOAs) as active elements with the required fractional-order ...
Ilias Dimeas, Georgia Tsirimokou, Costas Psychalinos, Ahmed S. Elwakil   +3 more
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Design of Fractional-order Notch Filters

2020 IEEE Students Conference on Engineering & Systems (SCES), 2020
In this work we have discussed fractional-order notch filters of orders $(1+\alpha)$ and $(\alpha+\beta)$ . The order range covered in both transfer functions is $1 and $0 . Order $(\alpha+\beta)$ gives us a larger control over implementation of lower fractional orders (i.e. orders lesser than one).
Shruti Jain, Dharmendra K. Upadhyay
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Butterworth passive filter in the fractional-order

ICM 2011 Proceeding, 2011
In this paper, the generalized analysis of the first Butterworth filter based on two passive elements is introduced in the fractional-order sense. The fractional-order condition of the Butterworth circuit is presented for the first time where it will lead us back to the known condition of the integer-order circuit when the two fractional-orders equal ...
A. Soltan, A. G. Radwan, A. M. Soliman
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Spatial-fractional order diffusion filtering

Journal of Mathematical Chemistry, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Yuanlu, Jiang, Min
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Stochastic filtering in fractional-order circuits

Nonlinear Dynamics, 2021
This paper presents the extended Kalman filter (EKF) and moving horizon estimation (MHE) approach-based nonlinear stochastic filtering of fractional-order complementary metal oxide semiconductor (CMOS) circuit. The fractional-order calculus is used to get better reliability of the circuit.
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A novel fractional-order charge-pump PLL with the fractional-order loop filter

2020 Chinese Automation Congress (CAC), 2020
In this paper, a novel fractional-order charge-pump-phase-locked-loop (FO-CPPLL) using a fractional-order loop filter (FO-LF) is proposed to improve the overall system performance. The FO-CPPLL is obtained by extending the traditional CPPLL order from integer domain to real domain by using the FO-LF.
Tianren Feng, Chi Xu, Duli Yu
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