Relevant bibliographies by topics / Fractional filter

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Fractional filter'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Fractional filter"

1

Yu, Wan Neng, Su Wen Li, and Min Ying Zheng. "The Filtering Mechanism Modeling and Simulation of Passive Power Filter Based on Differentiator Circuit." Advanced Materials Research 430-432 (January 2012): 1593–96. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1593.

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Traditional continuous-time filters are of integer order which the power loss of passive power filter is general very much. However, using fractional calculus, filters may also be represented by the more general fractional-order differential equations. In this work, firstly, the passive elements were described with fractional-order differential equations depending on the introduction of fractional calculus application research. Secondly, the mathematical model of fractional-order filters was derived and discussed which includes high impedance at a certain frequency and low impedance at others,
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Sengar, Kanchan, and Arun Kumar. "Fractional Order Capacitor in First-Order and Second-Order Filter." Micro and Nanosystems 12, no. 1 (2020): 75–78. http://dx.doi.org/10.2174/1876402911666190821100400.

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Background: Fractional order Butterworth and Chebyshev (low-pass filter circuits, highpass filter circuits and band-pass filters circuits) types of first and second order filter circuits have been simulated and their transfer function are derived. The effect of change of the fractional order α on the behavior of the circuits is investigated. Objective: This paper presents the use of fractional order capacitor in active filters. The expressions for the magnitude, phase, the quality factor, the right-phase frequencies, and the half power frequencies are derived and compared with their previous c
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Lanani, Abderrahim, Salama Meghriche, and Abdelbaki Djouambi. "Novel design of a fractional wavelet and its application to image denoising." Bulletin of Electrical Engineering and Informatics 9, no. 1 (2020): 129–40. https://doi.org/10.11591/eei.v9i1.1548.

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This paper proposes a new wavelet family based on fractional calculus. The Haar wavelet is extended to fractional order by a generalization of the associated conventional low-pass filter using the fractional delay operator 𝑍−𝐷. The high-pass fractional filter is then designed by a simple modulation of the low-pass filter. In contrast, the scaling and wavelet functions are constructed using the cascade Daubechies algorithm. The regularity and orthogonality of the obtained wavelet basis are ensured by a good choice of the fractional filter coefficients. An application example is presented
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Zhao, Yan Chun. "Design and Application of Digital Filter Based on Calculus Computing Concept." Applied Mechanics and Materials 513-517 (February 2014): 3151–55. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3151.

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Calculus has been widely applied in engineering fields. The development of Integer order calculus theory is more mature in the project which can obtain fractional calculus theory through the promotion of integration order. It extends the flexibility of calculation and achieves the engineering analysis of multi-degree of freedom. According to fractional calculus features and the characteristics of fractional calculus, this paper treats the frequency domain as the object of study and gives the fractional calculus definition of the frequency characteristics. It also designs the mathematical model
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Abderrahim, Lanani, Meghriche Salama, and Djouambi Abdelbaki. "Novel design of a fractional wavelet and its application to image denoising." Bulletin of Electrical Engineering and Informatics 9, no. 1 (2020): 129–40. http://dx.doi.org/10.11591/eei.v9i1.1548.

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This paper proposes a new wavelet family based on fractional calculus. The Haar wavelet is extended to fractional order by a generalization of the associated conventional low-pass filter using the fractional delay operator Z-D. The high-pass fractional filter is then designed by a simple modulation of the low-pass filter. In contrast, the scaling and wavelet functions are constructed using the cascade Daubechies algorithm. The regularity and orthogonality of the obtained wavelet basis are ensured by a good choice of the fractional filter coefficients. An application example is presented to ill
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Baranowski, Jerzy, and Paweł Piątek. "Fractional Band-Pass Filters: Design, Implementation and Application to EEG Signal Processing." Journal of Circuits, Systems and Computers 26, no. 11 (2017): 1750170. http://dx.doi.org/10.1142/s0218126617501705.

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Fractional band-pass filters are a promising area in the signal processing. They are especially attractive as a method for processing of biomedical signals, such as EEG, where large signal distortion is undesired. We present two structures of fractional band-pass filters: one as an analog of classical second-order filter, and one arising from parallel connection of two fractional low-pass filters. We discuss a method for filter implementation — Laguerre Impulse Response Approximation (LIRA) — along with sufficient conditions for when the filter can be realized with it. We then discuss methods
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Sac, Maciej, and Marek Blok. "A Nearly Optimal Fractional Delay Filter Design Using an Asymmetric Window." International Journal of Electronics and Telecommunications 57, no. 4 (2011): 465–72. http://dx.doi.org/10.2478/v10177-011-0065-0.

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A Nearly Optimal Fractional Delay Filter Design Using an Asymmetric WindowIn this paper a numerically efficient filter design method suitable for variable fractional delay (VFD) filter implementation is investigated. We propose to use a well known window method with an asymmetric window extracted from optimal filter designed beforehand. As we will demonstrate, such an approach, if additional gain correction is applied, allows for nearly optimal VFD filter design. Thus, the proposed approach combines window method simplicity with performance comparable to that of optimal filters. Efficiency of
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Qiu, Xinyi, Hui Feng, and Bo Hu. "Fractional Order Graph Filters: Design and Implementation." Electronics 10, no. 4 (2021): 437. http://dx.doi.org/10.3390/electronics10040437.

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Existing graph filters, polynomial or rational, are mainly of integer order forms. However, there are some frequency responses which are not easily achieved by integer order approximation. It will substantially increase the flexibility of the filters if we relax the integer order to fractional ones. Motivated by fractional order models, we introduce the fractional order graph filters (FOGF), and propose to design the filter coefficients by genetic algorithm. In order to implement distributed computation on a graph, an FOGF can be approximated by the continued fraction expansion and transformed
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Беляев, Б. А., С. А. Ходенков, И. В. Говорун та А. М. Сержантов. "Микрополосковые фильтры с широкими полосами пропускания". Письма в журнал технической физики 47, № 7 (2021): 30. http://dx.doi.org/10.21883/pjtf.2021.07.50796.18581.

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New microstrip designs of bandpass filters based on a low-pass filter was developed. Several or all the sections of high-impedance microstrip lines of the designed filters were connected to the ground by stubs. The filters have high frequency-selective properties, and their fractional bandwidths are in the range of 30 % –150 %. An experimental sample of a filter with a 2 GHz central frequency of the passband and 70% fractional bandwidth was made on an alumina substrate 1 mm thick. The filter has a substrate area of 46 × 21 mm2. Good agreement of the measured frequency response of the filter wi
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FERDI, YOUCEF. "SOME APPLICATIONS OF FRACTIONAL ORDER CALCULUS TO DESIGN DIGITAL FILTERS FOR BIOMEDICAL SIGNAL PROCESSING." Journal of Mechanics in Medicine and Biology 12, no. 02 (2012): 1240008. http://dx.doi.org/10.1142/s0219519412400088.

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The goal of this paper is to describe some applications of fractional order calculus to biomedical signal processing with emphasis on the ability of this mathematical tool to remove noise, enhance useful information, and generate fractal signals. Three types of digital filters are considered, namely, lowpass differentiation filter, smoothing filter, and 1/fβ-noise generation filter. The filter impulse responses are functions of the fractional order and the sampling period only, and thus can be computed easily. Application examples are presented for illustrations.
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Dissertations / Theses on the topic "Fractional filter"

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Borisov, Egor. "Analogové elektronické obvody obsahující prvky neceločíselného řádu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-317139.

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In this paper it is illustrated that currently there is a new element in electronics - fractional order filter consisting of fractal devices. The circuits selected are presented and analyzed in this diploma thesis. The calculation of the basic characteristics and parameters of the filter of fractal elements was made. An analysis of the functions and their graphs were presented. The simulation of fractional-order filter for its design was made in the program Matlab. The graphs of frequency characteristics (magnitude and phase response) were obtained in the program OrCAD. The examples of using t
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Dvořák, Jan. "Řiditelné analogové elektronické obvody neceločíselného řádu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-433474.

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Disertační práce se zabývá syntézou a analýzou nových obvodových struktur neceločíselného (fraktálního) řádu s řiditelnými parametry. Hlavní cíl této práce je návrh nových řešení filtračních struktur fraktálního řádu v proudovém módu, emulátorů prvků fraktálního řádu a také oscilátorů. Práce obsahuje návrh tří emulátorů pasivního prvku fraktálního řádu, tři filtrační struktury a dva oscilátory navržené na základě využití pasivního prvku fraktálního řádu v jejich obvodové struktuře a dvě obecné koncepce filtrů fraktálního řádu založené na využití aproximace přenosové funkce fraktálního řádu. Na
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Park, Joohwan. "Fractional-N PLL with 90 degree phase shift lock and active switched-capacitor loop filter." Diss., Texas A&M University, 2005. http://hdl.handle.net/1969.1/4194.

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Phase locked loops (PLL) are used in a variety of RF integrated applications because of their ability to generate precise clock signals. These applications include clock recovery systems, frequency synthesizers and frequency multipliers. In order to achieve small size and low cost targets, the PLLs must be fully integrated on-chip with all the necessary components. Unfortunately, the filtering requirement for the low pass filter (LPF) demands a large silicon area, or the use of external capacitors. Moreover, high-density recording and high data rates for image transfer systems in wireless comm
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Son, Han-Woong. "A Fully Integrated Fractional-N Frequency Synthesizer for Wireless Communications." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5254.

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A fully integrated, fast-locking fractional-N frequency synthesizer is proposed and demonstrated in this work. In this design, to eliminate the need for large, inaccurate capacitors and resistors in a loop filter, an analog continuous-time loop filter whose performance is sensitive to process and temperature variations and aging has been replaced with a programmable digital Finite Impulse Response (FIR) filter. In addition, using the adaptive loop gain control proportional to the frequency difference, the frequency-locking time has been reduced. Also, the phase noise and spurs have been reduce
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Salášek, Jan. "Analogové funkční bloky fraktálního řádu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241141.

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Thesis describes the design of the blocks of fractional-order filters approximation using a filter of higher order integer. Active filters of third-order are use to create filter of 1+alfa -order, where alfa is between zero to one. One of the filters is practically implemented and measured.
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Langhammer, Lukáš. "Plně diferenční kmitočtové filtry s moderními aktivními prvky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-256565.

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Tato disertační práce se zaměřuje na výzkum v oblasti frekvenčních filtrů. Hlavním cílem je navrhnout a analyzovat plně diferenční kmitočtové filtry pracující v proudovém módu a využívající moderní aktivní prvky. Prezentované filtry jsou navrženy za použití proudových sledovačů, operačních transkonduktančních zesilovačů, plně diferenčních proudových zesilovačů a transrezistančních zesilovačů. Návrh se zaměřuje na možnost řídit některý z typických parametrů filtru pomocí řiditelných aktivních prvků, které jsou vhodně umístněny do obvodové struktury. Jednotlivé prezentované filtry jsou navrženy
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Al-Saadony, Muhannad. "Bayesian stochastic differential equation modelling with application to finance." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1530.

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In this thesis, we consider some popular stochastic differential equation models used in finance, such as the Vasicek Interest Rate model, the Heston model and a new fractional Heston model. We discuss how to perform inference about unknown quantities associated with these models in the Bayesian framework. We describe sequential importance sampling, the particle filter and the auxiliary particle filter. We apply these inference methods to the Vasicek Interest Rate model and the standard stochastic volatility model, both to sample from the posterior distribution of the underlying processes and
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Han, Yichen. "All-optical Microwave Signal Processing." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20234.

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Microwave signal processing in the optical domain is investigated in this thesis. Two signal processors including an all-optical fractional Hilbert transformer and an all-optical microwave differentiator are investigated and experimentally demonstrated. Specifically, the photonic-assisted fractional Hilbert transformer with tunable fractional order is implemented based on a temporal pulse shaping system incorporating a phase modulator. By applying a step function to the phase modulator to introduce a phase jump, a real-time fractional Hilbert transformer with a tunable fractional order is ac
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Uher, Jiří. "Návrh filtračních struktur fraktálního řádu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242051.

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This thesis deals with the fractional (1+)-order filters. The proposed filters operate in the current-mode. The derivation of the filters has been achieved using a third-order aproximation of the coresponding fractional-order transfer functions. It also describes active elements such as universal current conveyor, current follower and operational transconductance amplifier. In the end of this thesis some new circuit solutions of the fractional-order filter are proposed. Then the proposed filters are realized and experimentally measured.
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Kubát, Pavel. "Analogové elektronické emulátory obvodů neceločíselného řádu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442475.

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Diploma thesis deals with circuits contain fractional-order elements. The first part of this paper deals with this problem, there were also described methods of design fractionalorder elements and types of circuits containing the fractiona-order elements which can be applied in practice. Used active elements for practical part can be found in the second chapter. Design of GIC circuits and implementation of fractional-order element inside the circuit are shown in the last chapture. Parasitic analysis and stability of frequency filter containing fractional-order element had been also described.
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Books on the topic "Fractional filter"

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Noback, R. The generation of a random process with a spectrum with fractional power. National Aerospace Laboratory, 1988.

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Bérubé, Marc-André. Influence de la fraction de sable (80 [gamma] m-2,5 mm) des granulats et du filler minéral (<80 [gamma] m) sur la résistance à l'orniérage des chaussées routières. Gouvernement du Québec, Ministère des transports, 1997.

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Specificaton for octave-band and fractional-octave-band analog and digital filters. Standards Secretariat, Acoustical Society of America, 2003.

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Kliger, Alan S., and Rita Suri. Frequent haemodialysis. Edited by Jonathan Himmelfarb. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199592548.003.0262_update_001.

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Haemodialysis is a renal replacement treatment, an ‘artificial kidney’ that performs some of the functions of the normal kidney. It is an inelegant device, providing only a fraction of native kidney’s ability to filter toxins from the blood, but with none of the responsiveness to volume, fine feedback control to regulate solute concentrations, or endocrine functions of the healthy organ. Conventional haemodialysis performed three times a week for 4 hours per treatment filters the blood for only 12 of 168 hours each week, and removes less than 10 per cent of small solutes like urea than does th
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Digital Frequency Synthesis Demystified : DDS and Fractional-N PLLs (Demystified) (Demystified). Newnes, 1999.

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Arthur H.M. van Roermund, Michiel Steyaert, and Johan Huijsing. Analog Circuit Design: Fractional-N Synthesizers, Design for Robustness, Line and Bus Drivers. Springer, 2010.

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Fitzsimmons, Michael P. The Appearance of the Fifth Edition. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190644536.003.0005.

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Maradan quickly withdrew from the project, and years later than the stipulated deadline, Smits published the fifth edition, although the work was rushed into print when key figures working on it were proscribed after the coup of fructidor. The Convention had hoped that the dictionary would disseminate the values of the Revolution in the same manner as the earlier edition had for the ideals of absolute monarchy. The fifth edition, however, was filled with anachronistic ideas and suppressed institutions and barely took note of the Revolution, not even mentioning the French Revolution in its list
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Book chapters on the topic "Fractional filter"

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Freeborn, Todd, Brent Maundy, and Ahmed Elwakil. "Fractional Step Analog Filter Design." In Analog/RF and Mixed-Signal Circuit Systematic Design. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36329-0_11.

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Tasneem, Sadaf, Rajeev Kumar Ranjan, and Sajal K. Paul. "Electronically Tunable Fractional-Order Universal Filter." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-3756-7_2.

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Ranganayakulu, R., T. Kiranmayi, Ch V. L. Aditya, I. Tanoj Kumar, and G. Uday Bhaskar Babu. "Improved Fractional Filter IMC Controller Design for Fractional Order System." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4975-3_38.

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Sahu, Tapaswini, Madhab Chandra Tripathy, Kumar Biswal, and Sanjeeb Kumar Kar. "Performance Analysis of Fractional Order Filter Using Fractional Order Elements." In Lecture Notes in Networks and Systems. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0695-3_39.

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Soni, Ashu, Namrata Pandey, and Maneesha Gupta. "Harmony Search-Based Fractional-Order Chebyshev Filter." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-7077-3_33.

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Chen, Pengchong, and Ying Luo. "Fractional Order PIλDμ Control Design with Bode's Ideal Cutoff Filter." In Fractional Order PID and ADR Controls. CRC Press, 2025. https://doi.org/10.1201/9781003397632-7.

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Zhang, Yanzhu, and Jingjiao Li. "An Improvement Method of Fractional-Order Filter Approximation." In Advanced Research on Computer Education, Simulation and Modeling. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21802-6_17.

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Biswal, Kumar, Madhab Chandra Tripathy, and Sanjeeb Kar. "Performance Analysis of Fractional Order Low-pass Filter." In Lecture Notes in Networks and Systems. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2774-6_28.

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Sharma, Nimmi, Elizabeth Rufus, Vinod Karar, and Shashi Poddar. "Fractional Order Extended Kalman Filter for Attitude Estimation." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16657-1_77.

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Liang, Xiao, Guangming Yan, Yanfeng Zhu, Tianyi Li, and Xiaojun Sun. "Optimal Information Fusion Descriptor Fractional Order Kalman Filter." In Communications in Computer and Information Science. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7590-7_3.

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Conference papers on the topic "Fractional filter"

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Wei, Ying, Guanran Wang, Guangming Yan, Xiaojun Sun, and Bo Zhang. "Centralized Fusion Time-delay Fractional Order Kalman Filter." In 2024 43rd Chinese Control Conference (CCC). IEEE, 2024. http://dx.doi.org/10.23919/ccc63176.2024.10662694.

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Vardhan, Dhairya, and Sachin Nath Agarwal. "Dual Mode Biquadratic Fractional Order Filter Using VDTA." In 2025 10th International Conference on Signal Processing and Communication (ICSC). IEEE, 2025. https://doi.org/10.1109/icsc64553.2025.10967689.

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Ates, Abdullah, and YangQuan Chen. "Fractional Order Filter Discretization With Marine Predators Algorithm." In ASME 2021 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/detc2021-67611.

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Abstract In this study, discrete time models of continuous time fractional order filters are obtained by using the Marine Predators Algorithm (MPA). Marine Predators optimization algorithm is a population-based heuristic method. This method is inspired by the hunting behavior of marine predators. The algorithm works on three basic phases. These phases occur according to the difference or equality of the velocity of the prey and the predator. As it is known, uniform distribution is generally used in stochastic based optimization algorithms. However, in the MPA method, Brownian and Levy distribu
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Zheng, Song H., Mohammad A. Karim, and Ming L. Gao. "Amplitude-modulated fractional power filter for pattern recognition." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.thmm23.

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A new family of filters called the amplitude-modulated fractional power filter (AMFPF) is introduced to compare the performance of various correlation filters. By varying the four parameters used to define an AMFPF, the AMFPF may reduce to any of the five filters: inverse (IF), phase-only (POF), matched (MF), amplitude-compensated matched (ACMF), and amplitude-modulated phase-only (AMPOF).
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Bertsias, Panagiotis, and Costas Psychalinos. "Partial Fraction Expansion Based Fractional-Order Filter Designs." In 2019 Panhellenic Conference on Electronics & Telecommunications (PACET). IEEE, 2019. http://dx.doi.org/10.1109/pacet48583.2019.8956281.

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Sun, Xiaojun, and Guangming Yan. "Fractional order Kalman filter." In 2011 2nd International Conference on Intelligent Control and Information Processing (ICICIP). IEEE, 2011. http://dx.doi.org/10.1109/icicip.2011.6008365.

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Aoun, Mohamed, Slaheddine Najar, Moufida Abdelhamid, and Mohamed Naceur Abdelkrim. "Continuous fractional Kalman filter." In 2012 IEEE 9th International Multi-Conference on Systems, Signals and Devices (SSD). IEEE, 2012. http://dx.doi.org/10.1109/ssd.2012.6198068.

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Tutaj, Andrzej, Pawel Piatek, Waldemar Bauer, et al. "Approximating Fractional Filters With Analogue Active Filter Structures." In 2019 42nd International Conference on Telecommunications and Signal Processing (TSP). IEEE, 2019. http://dx.doi.org/10.1109/tsp.2019.8768817.

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Cui, Chunlei, Lipeng Zhang, Guangming Yan, and Xiaojun Sun. "Track Fusion Fractional Kalman Filter." In 2022 41st Chinese Control Conference (CCC). IEEE, 2022. http://dx.doi.org/10.23919/ccc55666.2022.9902141.

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Cois, O., A. Oustaloup, T. Poinot, and J. L. Battaglia. "Fractional state variable filter for system identification by fractional model." In 2001 European Control Conference (ECC). IEEE, 2001. http://dx.doi.org/10.23919/ecc.2001.7076300.

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Reports on the topic "Fractional filter"

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Hilton, Sue, and Thomas E. Lisle. Measuring the fraction of pool volume filled with fine sediment. U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1993. http://dx.doi.org/10.2737/psw-rn-414.

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Chaiyabutr, Narongsak, Chollada Buranakarl, Prapa Loypetjra, and Ayus Pichaicharnarong. Effect of exogenous urea on urea metabolism in heat stressed swamp buffalo. Chulalongkorn University, 1987. https://doi.org/10.58837/chula.res.1987.33.

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Effect of exogenous urea on urea metabolism in heat stressed swamp buffalo.In buffaloes during normal ambient temperature given exogenous urea infusion intravenously; the heart rate, respiratory rate, packed cell volume, glomerular filtration rate, plasma concentration of electrolyte, protein and creatinine were not significantly affected. The rate of urine flow, fractional urea excretion, urinary potassium excretion and osmolar clearance significantly decreased on the third hour of urea infusion. The decrease of fractional potassium excretion was concomitant with the reduction of the reductio
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Brushett, D. M., C. E. Beckett-Brown, M. B. McClenaghan, et al. Till geochemical data for the Brazil Lake pegmatite area, southwest Nova Scotia, Canada (NTS 21-A/04, 20-O/16 and 20-P/13): samples collected in 2020, 2021, and 2022. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332384.

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This open file reports geochemical data for till samples collected as a part of a till geochemical and surficial mapping project around the Brazil Lake lithium-cesium-tantalum (LCT-type) pegmatite in southwestern Nova Scotia (NTS map sheets 21A/04, 20O/16 and 20P/13). The global rise in lithium demand has motivated the Geological Survey of Canada's (GSC) recent investigations of the Brazil Lake pegmatites to study surficial geochemistry methods that can be used to explore for lithium and associated critical minerals (i.e., Cs, Ta, Be, In, Sn, W). These types of deposits are important sources o
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Ganzhur, Sergey F. MEASUREMENT OF B0 ---> D(S)(*)+D*- BRANCHING FRACTIONS AND POLARIZATION IN THE DECAY B0 ---> DS(*FILE) WITH A PARTIAL RECONSTRUCTION TECHNIQUE. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/799970.

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Gerstl, Zev, Thomas L. Potter, David Bosch, et al. Novel Herbicide Formulations for Conservation-Tillage. United States Department of Agriculture, 2009. http://dx.doi.org/10.32747/2009.7591736.bard.

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The overall objective of this study was to develop, optimize and evaluate novel formulations, which reduce herbicide leaching and enhance agronomic efficacy. Numerous studies have demonstrated that CsT promotes environmental quality and enhances sustainable crop production, yet continued use of CsT-practices appears threatened unless cost effective alternative weed control practices can be found. The problem is pressing in the southern portion of the Atlantic Coastal Plain region of the eastern USA where cotton and peanut are produced extensively. This research addressed needs of the region’s
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Avnimelech, Yoram, Richard C. Stehouwer, and Jon Chorover. Use of Composted Waste Materials for Enhanced Ca Migration and Exchange in Sodic Soils and Acidic Minespoils. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7575291.bard.

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Restoration of degraded lands and the development of beneficial uses for waste products are important challenges facing our society. In addition there is a need to find useful and environmentally friendly applications for the organic fractions of municipal and other solid waste. Recent studies have shown that composted wastes combined with gypsum or gypsum-containing flue gas desulfurization by-products enhance restoration of sodic soils and acidic minespoils. The mechanism by which this synergistic effect occurs in systems at opposite pH extremes appears to involve enhanced Ca migration and e
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Eshel, Amram, Jonathan P. Lynch, and Kathleen M. Brown. Physiological Regulation of Root System Architecture: The Role of Ethylene and Phosphorus. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7585195.bard.

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Specific Objectives and Related Results: 1) Determine the effect of phosphorus availability on ethylene production by roots. Test the hypothesis that phosphorus availability regulates ethylene production Clear differences were found between the two plants that were studied. In beans ethylene production is affected by P nutrition, tissue type, and stage of development. There are genotypic differences in the rate of ethylene production by various root types and in the differential in ethylene production when P treatments are compared. The acceleration in ethylene production with P deficiency inc
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Caritat, P. de, and U. Troitzsch. Towards a regolith mineralogy map of the Australian continent: a feasibility study in the Darling-Curnamona-Delamerian region. Geoscience Australia, 2021. http://dx.doi.org/10.11636/record.2021.035.

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Bulk quantitative mineralogy of regolith is a useful indicator of lithological precursor (protolith), degree of weathering, and soil properties affecting various potential landuse decisions. To date, no national-scale maps of regolith mineralogy are available in Australia. Catchment outlet sediments collected over 80% of the continent as part of the National Geochemical Survey of Australia (NGSA) afford a unique opportunity to rapidly and cost-effectively determine regolith mineralogy using the archived sample material. This report releases mineralogical data and metadata obtained as part of a
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Lahav, Ori, Albert Heber, and David Broday. Elimination of emissions of ammonia and hydrogen sulfide from confined animal and feeding operations (CAFO) using an adsorption/liquid-redox process with biological regeneration. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7695589.bard.

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The project was originally aimed at investigating and developing new efficient methods for cost effective removal of ammonia (NH₃) and hydrogen sulfide (H₂S) from Concentrated Animal Feeding Operations (CAFO), in particular broiler and laying houses (NH₃) and hog houses (H₂S). In both cases, the principal idea was to design and operate a dedicated air collection system that would be used for the treatment of the gases, and that would work independently from the general ventilation system. The advantages envisaged: (1) if collected at a point close to the source of generation, pollutants would
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