Relevant bibliographies by topics / Planer filter

Contents

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

Academic literature on the topic 'Planer filter'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Planer filter"

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Shi, Liyun, and Jianjun Gao. "Multitransmission Zero Dual-Band Bandpass Filter Using Nonresonating Node for 5G Millimetre-Wave Application." Active and Passive Electronic Components 2018 (December 13, 2018): 1–7. http://dx.doi.org/10.1155/2018/7628598.

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A planer millimetre-wave dual-band bandpass filter with multitransmission zeros is proposed for 5G application. This filter includes two dual-mode open-loop resonators. The U-shape nonresonating node is employed to generate an extra coupling path. Finally, a dual-band bandpass filter with five transmission zeros is obtained. The filter is fabricated and measured. Good agreement between simulation and measurement is obtained.
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Rousset, Davy, Sullivan Lechene, Denis Bemer, Francis Bonthoux, and Virginie Matera. "132 Evaluation of the Effectiveness of a New Technical Solution to Reduce Dust Emission from Road Planers." Annals of Work Exposures and Health 67, Supplement_1 (2023): i33. http://dx.doi.org/10.1093/annweh/wxac087.089.

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Abstract A planer equipped with a rotating cutting drum is used to remove about ten cm thick of road surfaces. This process generates dust likely to contain crystalline silica. The machine operator and people around may be particularly exposed. It is therefore essential to promote effective preventive solutions, in particular from dust collection and filtration systems, to reduce dust exposure. Tests were realized to evaluate the performance of technical devices designed to capture and filter dust emitted by road planers. The measurements were carried out on a road planer equipped with an air
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Abdul-Niby, M., M. Farhat, M. Nahas, and Μ. Μ. Alomari. "A Compact Tri-Band Bandpass Filter with High Out-of-Band Rejection." Engineering, Technology & Applied Science Research 7, no. 4 (2017): 1786–90. https://doi.org/10.5281/zenodo.844293.

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This paper presents a planar tri-band bandpass filter with high out-of-band rejection over a wide band. The filter is based on two pairs of λ/4 resonators embedded inside an open loop ring resonator without any size increase, where each pair of resonators are electromagnetically coupled to each other and the feedlines. This results in the excitations of passbands, where the first passband is generated by the open loop resonators. The second and the third passbands are excited by λ/4 resonators. The proposed technique provides sufficient degrees of freedom to control the center frequency and ba
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Chang, Mon-Li, Ding-Bing Lin, Hui-Tzu Rao, Hsuan-Yu Lin, and Hsi-Tseng Chou. "Smart Transfer Planer with Multiple Antenna Arrays to Enhance Low Earth Orbit Satellite Communication Ground Links." Electronics 13, no. 17 (2024): 3581. http://dx.doi.org/10.3390/electronics13173581.

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In this study, we propose a smart transfer planer equipped with multiple antenna arrays to improve ground links for low Earth orbit (LEO) satellite communication. The STP features a symmetrical structure and is strategically placed on both ends of a window, serving both indoor and outdoor environments. Using the window glass as a medium, energy transmission occurs through a coupling mechanism between the planers. The design focuses on large array antenna design, beamforming networks, and coupler design on both sides of the glass. Beamforming networks enable the indoor and outdoor antenna array
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Farhat, M., J. Munisami, M. Abdul-Niby, and M. Nahas. "A Compact Quint-Band Bandpass Filter Based on Stub-Loaded Resonators." Engineering, Technology & Applied Science Research 7, no. 3 (2017): 1694–98. https://doi.org/10.5281/zenodo.809499.

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This paper presents a planar quant-band bandpass filter with a high out-of-band rejection. The filter is based on inter-coupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feed lines. This results in excitation of passbands, where the first and the third passbands are generated by λ/4 stub-loaded resonators. The second and the fifth passbands are excited by λ/2 stub-loaded resonators. And the fourth passband is generated by λ/2 resonators. The proposed technique provides sufficient degree of freedom to control the center frequency and
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Čavlović, Anka Ozana, Ivan Bešlić, Stjepan Pervan, et al. "Occupational exposure to inhalable and respirable wood dust of pedunculate oak (Quercus robur L.) in a furniture factory." BioResources 17, no. 4 (2022): 5831–47. http://dx.doi.org/10.15376/biores.17.4.5831-5847.

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Given the well-known carcinogenicity of hardwood dust, occupational exposure to oak wood dust has been determined in a furniture factory on different wood processing machines during sanding, planing, and milling. Determination of the mass concentrations of respirable and inhalable oak wood dust from ambient air was performed using personal sampling pumps and two types of filter holders: the Higgins-Dewell respirable dust cyclone, manufactured by Casella (Bedford, UK), and the inhalable dust IOM sampler manufactured by SKC (Dorset, UK). Out of a total of 30 values of inhalable mass concentratio
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Omelianenko, M. Yu, T. V. Romanenko, and S. Ya Zhuk. "Synthesis of Waveguide-Planar Filters on Stepped-Impedance Resonators." Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 86 (September 30, 2021): 14–21. https://doi.org/10.20535/radap.2021.86.14-21.

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The paper presents the results of the development of E-plane filters with inhomogeneous resonators, proposed by the authors recently. The characteristic of the proposed filters demonstrates the attenuation poles, which significantly improves selective properties in stopband. The nature and behavior of it has been carefully discussed. The paper also presents the proposed method of direct filter synthesis, which allows to obtain the dimensions of the elements of the topology which, in the worst case, require only minor changes in the procedure of their optimization. The influence of losses on th
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Al-Yasir, Yasir, Naser Ojaroudi Parchin, Raed Abd-Alhameed, Ahmed Abdulkhaleq, and James Noras. "Recent Progress in the Design of 4G/5G Reconfigurable Filters." Electronics 8, no. 1 (2019): 114. http://dx.doi.org/10.3390/electronics8010114.

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Currently, several microwave filter designs contend for use in wireless communications. Among various microstrip filter designs, the reconfigurable planar filter presents more advantages and better prospects for communication applications, being compact in size, light-weight and cost-effective. Tuneable microwave filters can reduce the number of switches between electronic components. This paper presents a review of recent reconfigurable microwave filter designs, specifically on current advances in tuneable filters that involve high-quality factor resonator filters to control frequency, bandwi
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Gohil, Bhumikaba, and Khyati Chavda. "Design & Simulation of S Band Planar Microwave Filter for Wireless Application." IOP Conference Series: Materials Science and Engineering 1187, no. 1 (2021): 012016. http://dx.doi.org/10.1088/1757-899x/1187/1/012016.

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Abstract Reducing the size of today’s wireless communication systems has become an important criterion in filter design with minimal possible value of filter parameters. To achieve this goal in wireless communication system, filter design is the most important part of the signal transmission process. Conventional filters are very important for modern wireless communication systems as they do not provide the desired miniaturization and results. Recently, using metamaterials and dielectric resonators, the filter size has been drastically reduced to a very small size for practical applications. T
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Su, Te-Jen, Tsang-Chi Yang, Wen-Pin Tsai, and Jia-Wei Liu. "Design Two-Dimensional IIR Filters Based on Clonal Selection Algorithm with Singular Value Decomposition." Research Letters in Signal Processing 2007 (2007): 1–5. http://dx.doi.org/10.1155/2007/32081.

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In this letter, clonal selection algorithm (CSA) with singular value decomposition (SVD) method is investigated for the realization of two-dimentional (2D) infinite-impulse response (IIR) filters with arbitrary magnitude responses. The CSA is applied to optimize the sampled frequencies of transition band of digital filters, then producing a planar response matrix of a 2D IIR digital filter. By using the SVD, 2D magnitude specifications can be decomposed into a pair of 1D filters, and thus the problem of designing a 2D digital filter can be reduced to the one of designing a pair of 1D digital f
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Dissertations / Theses on the topic "Planer filter"

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Basti, Ahmed. "Développement de méthodes de synthèse pour la conception de filtres hyperfréquences compacts et optimisés en pertes." Thesis, Limoges, 2014. http://www.theses.fr/2014LIMO0023/document.

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Pour les systèmes de communication par satellite, des filtres avec de très bonnes performances électriques sont indispensables afin de rejeter les signaux indésirables dans de nombreuses parties de la chaîne de communication. Les technologies fort-Q peuvent répondre à cette exigence mais elles conduisent souvent à des dispositifs encombrants. D'autre part, les technologies compactes faible-Q souffrent généralement d'une dégradation des performances électriques en termes de pertes d'insertion, de sélectivité et de platitude. Pour répondre à une demande croissante concernant la réduction de la t
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Liu, Zenghai. "Interferometric filter planar Doppler velocimetry." Thesis, Cranfield University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539402.

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This thesis describes the development of a Mach-Zehnder interferometric filter based planar Doppler velocimetry (MZI-PDV) flow measurement technique. The technique uses an entirely new optical system, an unbalanced MZI incorporating glass blocks for wavefront-matching, to replace the iodine cell currently used in conventional PDV. The free spectral range of the interferometric filter can be selected by adjusting the optical path difference of the MZI. This allows the velocity measurement range, sensitivity and resolution to be varied. This system offers no restricts to the choice of laser wave
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Monroe, Janice. "Quasi-Planar microwave filter designs." Thesis, Queensland University of Technology, 1995. https://eprints.qut.edu.au/226911/1/T%28BE%26E%29%201026_Monroe_1995.pdf.

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The designs of two types of quasi-planar microwave bandpass filters, an asymmetric parallel-coupled filter and a pseudo-coaxial line (PCL) filter, are presented. Both filters are synthesized using the approximate insertion loss method. The asymmetric parallel-coupled filter is a modification of the traditional symmetric parallel-coupled filter. A simple and novel method is presented for removal of the step-junction discontinuities which are inherent in the traditional design and are sources of possible excitations of leaky waves and higher order modes which may cause deterioration in f
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El, Mostrah Abbas. "Étude de filtres semi-volumiques pour les charges utiles flexibles des futurs satellites de télécommunications." Brest, 2011. http://www.theses.fr/2011BRES2062.

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Malgré les nombreux services (téléphonie, multimédia,. . . ) offerts par les satellites de télécommunication, les utilisateurs ne se contentent plus de ces services traditionnels et sont en permanence demandeurs de services de qualité répondant à leurs attentes. Il n’est donc pas étonnant qu’apparaisse le besoin de flexibilité au niveau de la charge utile pour permettre au satellite de suivre en vol l’évolution des services. Ce travail de thèse avait pour objet d’étudier l’impact des besoins de flexibilité sur les fonctions de filtrage de la charge utile du satellite. En effet, ce nouveau beso
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Sence, Johann. "Contribution au co-design et à la co-intégration de réseaux d’antennes actives multi-bandes pour systèmes de radionavigation par satellite." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0087.

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Ce travail de thèse s’inscrit dans le contexte actuel d’une très forte augmentation de la densité d’intégration des systèmes électroniques pour les équipements de communications, de localisation ou de surveillance. Le déploiement de ces systèmes doit aussi répondre à une demande croissante de flexibilité en termes de fréquences, de puissance ou de couverture. La flexibilité en fréquence peut être simultanée avec des dispositifs multi-bandes ou sélective par reconfiguration de la bande de fréquence. La flexibilité en puissance permet de minimiser la consommation du système et la flexibilité de
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Lu, Zenghai. "Interferometric filter-based planar Doppler velocimetry." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/7151.

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This thesis describes the development of a Mach-Zehnder interferometric filter based planar Doppler velocimetry (MZI-PDV) flow measurement technique. The technique uses an entirely new optical system, an unbalanced MZI incorporating glass blocks for wavefront-matching, to replace the iodine cell currently used in conventional PDV. The free spectral range of the interferometric filter can be selected by adjusting the optical path difference of the MZI. This allows the velocity measurement range, sensitivity and resolution to be varied. This system offers no restricts to the choice of laser wave
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McGee, Jonathan Adam. "Monolithic in-plane tunable optical filter." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8566.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Electrical and Computer Engineering . Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Forslund, Ola. "Scattering and propagation of electromagnetic waves in planar and curved periodic structures - applications to plane wave filters, plane wave absorbers and impedance surfaces." Doctoral thesis, KTH, Alfvén Laboratory, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3825.

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<p>The subject of this thesis is scattering of electromagneticwaves from planar and curved periodic structures. The problemspresented are solved in the frequency domain.</p><p>Scattering from planar structures with two-dimensionalperiodic dependence of constitutive parameters is treated. Theconstitutive parameters are assumed to vary continuously orstepwise in a cross section of a periodically repeating cell.The variation along a longitudinal coordinate z is arbitrary. Ageneral skew lattice is assumed. In the numerical examples, lowloss and high loss dielectric materials are considered. Thepro
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Goussetis, George. "Waveguide bandpass filters with improved performance." Thesis, University of Westminster, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251653.

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Terry-Wood, S. "Miniature YBCO/MgO planar superconducting filter, oscillator and delayline structures." Thesis, University of Portsmouth, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574455.

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The design of practical high performance radio frequency and microwave frequency circuits employing high transition temperature superconductors is presented. High quality factor resonators and very low insertion loss bandpass filters constructed using the high temperature superconductor YBCO with a transition temperature of 87 Kelvin are described. These very high quality factor energy-trapping shielded microstrip cavity structures employed a very low loss MgO dielectric substrate with YBCO superconducting ground plane, strip plane, shield plane and normal metal end walls. This structure was a
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Books on the topic "Planer filter"

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United States. Environmental Protection Agency. Office of Municipal Pollution Control and Water Engineering Research Laboratory, eds. Belt filter presses. U.S. Environmental Protection Agency, Water Engineering Research Laboratory, Office of Municipal Pollution Control, 1986.

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Helszajn, J. Microwave planar passive circuits and filters. J. Wiley, 1994.

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Helszajn, J. Synthesis of lumped element, distributed and planar filters. McGraw-Hill, 1990.

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Helszajn, J. Synthesis of lumped element, distributed and planar filters. McGraw-Hill, 1989.

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Booth, Stephen. Minimizing operational interruption during filter bed surveillance. Awwa Research Foundation, 2006.

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Booth, Stephen. Minimizing operational interruption during filter bed surveillance. Awwa Research Foundation, 2006.

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Booth, Stephen. Minimizing operational interruption during filter bed surveillance. Awwa Research Foundation, 2006.

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Booth, Stephen. Minimizing operational interruption during filter bed surveillance. Awwa Research Foundation, 2006.

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Cornwell, David A. Innovative applications of treatment processes for spent filter backwash. Water Research Foundation, 2010.

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Letterman, Raymond D. Slow sand filter maintenance: Costs and effects on water quality. U.S. Environmental Protection Agency, Water Engineering Research Laboratory, 1985.

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Book chapters on the topic "Planer filter"

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Weng, Wei-Chung, Fan Yang, and Atef Elsherbeni. "planar Filter Designs." In Electromagnetics and Antenna Optimization Using Taguchi’s Method. Springer International Publishing, 2008. http://dx.doi.org/10.1007/978-3-031-01701-8_5.

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Heisig, Lisa-Marie, Katrin Markuske, Rhena Wulf, and Tobias Michael Fieback. "Characterization of Heat Transport and Diffusion Processes During Metal Melt Filtration." In Multifunctional Ceramic Filter Systems for Metal Melt Filtration. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-40930-1_14.

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AbstractThis chapter contains a summary of thermodynamic investigations of ceramic filters, metal melts and their interaction, which can serve as a basis for the optimization of the filters as well as the casting and metal melt filtration process. First, the thermophysical properties of two different filter base materials are briefly discussed. Subsequently, after demonstrating measurement conditions and parameters, the effective thermal conductivities of filters with varying pore size, porosity and material measured by the Transient-Plane-Source method at temperatures up to 700 °C are present
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Hrobak, Michael. "Planar Directional Couplers and Filters." In Critical mm-Wave Components for Synthetic Automatic Test Systems. Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-09763-9_3.

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Lobbe, Alexander. "Deep Learning for the Benes Filter." In Mathematics of Planet Earth. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18988-3_12.

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AbstractThe filtering problem is concerned with the optimal estimation of a hidden state given partial and noisy observations. Filtering is extensively studied in the theoretical and applied mathematical literature. One of the central challenges in filtering today is the numerical approximation of the optimal filter. Here, accurate and fast methods are actively sought after, especially for such high-dimensional settings as numerical weather prediction, for example. In this paper we present a brief study of a new numerical method based on the mesh-free neural network representation of the densi
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Zakharov, Alexander, Mykhailo Ilchenko, Sergii Rozenko, and Ludmila Pinchuk. "Planar Bandpass Filters with Mixed Couplings." In Advances in Information and Communication Technology and Systems. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58359-0_21.

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Reich, Sebastian. "Frequentist Perspective on Robust Parameter Estimation Using the Ensemble Kalman Filter." In Mathematics of Planet Earth. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18988-3_15.

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AbstractStandard maximum likelihood or Bayesian approaches to parameter estimation for stochastic differential equations are not robust to perturbations in the continuous-in-time data. In this paper, we give a rather elementary explanation of this observation in the context of continuous-time parameter estimation using an ensemble Kalman filter. We employ the frequentist perspective to shed new light on two robust estimation techniques; namely subsampling the data and rough path corrections. We illustrate our findings through a simple numerical experiment.
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Reich, Sebastian. "Data Assimilation: A Dynamic Homotopy-Based Coupling Approach." In Mathematics of Planet Earth. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-40094-0_12.

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AbstractHomotopy approaches to Bayesian inference have found wide- spread use especially if the Kullback–Leibler divergence between the prior and the posterior distribution is large. Here we extend one of these homotopy approaches to include an underlying stochastic diffusion process. The underlying mathematical problem is closely related to the Schrödinger bridge problem for given marginal distributions. We demonstrate that the proposed homotopy approach provides a computationally tractable approximation to the underlying bridge problem. In particular, our implementation builds upon the widel
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Mazierska, Janina, and Mohan Jacob. "High-Temperature Superconducting Planar Filters for Wireless Communication." In Novel Technologies for Microwave and Millimeter — Wave Applications. Springer US, 2004. http://dx.doi.org/10.1007/978-1-4757-4156-8_6.

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Dufée, Benjamin, Etienne Mémin, and Dan Crisan. "Observation-Based Noise Calibration: An Efficient Dynamics for the Ensemble Kalman Filter." In Mathematics of Planet Earth. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18988-3_4.

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AbstractWe investigate the calibration of the stochastic noise in order to guide the realizations towards the observational data used for the assimilation. This is done in the context of the stochastic parametrization under Location Uncertainty (LU) and data assimilation. The new methodology is rigorously justified by the use of the Girsanov theorem, and yields significant improvements in the experiments carried out on the Surface Quasi Geostrophic (SQG) model, when applied to Ensemble Kalman filters. The particular test case studied here shows improvements of the peak MSE from 85% to 93%.
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El Bakkali, Moustapha, Dahbi El Khamlichi, Soufiane Achraou, et al. "Miniaturized Planar Reconfigurable Frequency Band Filter for C-Band Applications." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-81685-7_29.

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Conference papers on the topic "Planer filter"

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Bati, E., Y. Z. Gurbuz, and A. Aydin Alatan. "Video mosaicing of planer scenes using extended kalman filter." In 2013 21st Signal Processing and Communications Applications Conference (SIU). IEEE, 2013. http://dx.doi.org/10.1109/siu.2013.6531508.

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Gupta, Deepti, Aneesha Upadhyay, Manisha Yadav, and P. K. Singhal. "Design and analysis of low pass planer microwave filter using left handed SRR structures." In 2014 International Conference on Medical Imaging, m-Health and Emerging Communication Systems (MedCom). IEEE, 2014. http://dx.doi.org/10.1109/medcom.2014.7005572.

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Youn, Jae-Ho, Hyeong-Seok Kim, Byeong-Gwon Kang, Jun-Seok Park, Sun-Hyung Kim, and Jae-Bong Lim. "Design of Planer type Comb-Line Bandpass Filter And Design Parameter Extraction Using FE Analysis." In 32nd European Microwave Conference, 2002. IEEE, 2002. http://dx.doi.org/10.1109/euma.2002.339202.

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Lanteigne, David J. "Optimal use of SLMs in correlators." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.tus3.

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Conventional correlators with similar SLMs in the input and filter planes are generally designed such that the highest spatial frequency in the input object is mapped to the edge of the filter plane SLM. Simple analysis shows that the diffraction limited spot size of such a system is substantially larger than the pixel size in the filter plane. The consequences of this phenomenon for the design of optimal filters and correlators will be discussed, including the role of optical aberrations.
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Grover, C. P. "Rainbow holography using external spatial filters for chromatic corrections." In OSA Annual Meeting. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.thll4.

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A promising method using external spatial filters is described for the chromatic correction of images from transmission holograms produced in white light. The spatial corrective filter or screen represents a 1-D random diffuser and is characterized by the sinc function describing the Fourier transform of its amplitude transmittance. Holograms of nondiffuse or specularly reflecting objects, for which the far field diffraction pattern can be approximated to the delta function, have been considered for chromatic corrections by these spatial filters. However, the technique is also applicable to op
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Szoplik, Tomasz, and Henri H. Arsenault. "Scale-invariant pattern recognition using a nonsymmetrical Fourier correlator." In OSA Annual Meeting. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.the1.

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A new method for shift- and scale-invariant pattern recognition is based on a modification of the classical matched filtering technique. The nonsymmetrical Fourier spectrum of an input scene matches a filter made from the symmetrical FT of a target. The scale of the nonsymmetrical spectrum of a scene changes with the angle in the Fourier plane. Therefore a prototype filter can match the spectrum of an object having a different size in some direction. To reduce the cross-correlation noise, wedge masks are placed in the Fourier plane of a correlator. A scale search is possible by rotating the we
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van der Gracht, Joseph, and Joseph N. Mait. "Diffractive-optical-element design optimization of pattern-recognition filters." In OSA Annual Meeting. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/oam.1993.thnn.6.

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Diffractive optical element (DOE) design techniques can be applied to the generation of pattern recognition filters for optical correlators, in which case the spatial light modulator (SLM) in the filler plane is thought of as a real-time DOE. The designer must first select the desired complex pattern recognition filter and then apply DOE design techniques to map the fully complex function onto the limited dynamic range SLM. To illustrate the procedure, we apply the techniques to the problem of implementing a matched filter with limited dynamic range Fourier plane SLM’s. We use computer simulat
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Putnam, Robert S. "Rotation-invariant optical pattern recognition with increased information content." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.fp3.

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Past work in optical pattern recognition of rotated targets emphasized smeared Fourier plane filters or synthetic discriminant functions. These are reduced information content filters. Our aggregate phase-only filter detects multiple targets whose Fourier transforms have minimal overlap, which utilizes unoccupied areas of the Fourier plane and which reduces smearing. This retains effective target detection for all targets. Using multiple targets which are rotated versions of the same image, we demonstrate that an aggregate filter formed from widely rotated targets performs better than one form
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Chao, T. H., and M. Chen. "Large capacity optical correlator by wavelength-angle multiplexing." In OSA Annual Meeting. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.the5.

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A novel approach of building a large capacity optical correlator using VanderLugt’s matched spatial filter is introduced in which a tunable dye laser is used as the coherent light source and a rotatable diffraction grating is placed at the input object plane. While sequentially rotating the grating about the optical axis and tuning the wavelength of the dye laser, the input signal spectrum is scanned along trajectories of concentric circles at the Fourier plane. With this 2-D scanning approach, the number of matched filters that can be built at the Fourier plane is greatly increased due to the
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Hassebrook, Harry, V. B. K. Vijaya Kumar, and Larry D. Hostetler. "Linear phase coefficient composite filters." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.fp2.

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A new approach to composite filter design is presented in which the filter is the weighted sum of training samples with the complex weights being of unit magnitude and linear phase. The LPCC filters are based on the fact that when the N training images are uniformly sampled in in-plane rotation, the resulting N×N correlation matrix (CM) is Toeplitz. The training set for out-of-plane rotation is chosen so that its CM most closely resembles the Ideal CM for in-plane rotation. The eigenvectors of the ideal CM are used to obtain the coefficients needed to generate the LPCC filters. The elements of
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Reports on the topic "Planer filter"

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Mahmood, Salih. Behavior of Lap Shear Connections with Thermally Insulating Filler Plates. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.6047.

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Wilson, K. B., J. C. Haas, and M. B. Eshelman. Granular-bed and ceramic candle filters in commercial plants: A comparison. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10107775.

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Christie, Benjamin, Jordan Klein, Anton Netchaev, and Garry Glaspell. Integrating MOVEit motion constraints on a novel robotic manipulator. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47845.

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MOVEit, a widely used Robot Operating System framework, plans composite tasks, where the high-level sequence of actions is fixed and known in advance. However, these tasks need to be tailored and adapted to the environmental context. This framework uses custom trajectory planners, known as controllers, to solve goals that are fully defined within the configuration space. Libraries, such as the Open Motion Planning Library, provide a collection of motion planners that can solve task-space goals. An exact spatial and joint replication of the robotic manipulator’s mechanics, typically Universal R
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Musa, Idris A., and Fidelis R. Mashiri. PARAMETRIC STUDY ON CONCRETE-FILLED STEEL TUBULAR T-JOINTS UNDER IN-PLANE BENDING. The Hong Kong Institute of Steel Construction, 2018. http://dx.doi.org/10.18057/icass2018.p.113.

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Eiber. L51786 Development of Optimized Nondestructive Inspection Methods for Hot Tap Branch Connection Welds. Pipeline Research Council International, Inc. (PRCI), 1998. http://dx.doi.org/10.55274/r0010388.

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In the first two phases of this project, the accuracy and reliability of both conventional and more advanced nondestructive inspection techniques were evaluated by way of a round-robin program of blind inspections The results indicate that there is much variability in the accuracy and reliability of discontinuity detection and sizing depending on details of the NDT procedures adopted, which includes specification of equipment, techniques, calibration methods, and reporting requirements. In Phase III, optimized procedures for sleeve fillet welds and a limited number of branch groove welds were
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Alers, Ron. DTPH56-06-T-0009 Enhancing Direct Assessment with Remote Inspection through Coatings and Buried Regions. Pipeline Research Council International, Inc. (PRCI), 2009. http://dx.doi.org/10.55274/r0011809.

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The objective of this program is to advance the state-of-the-art of electromagnetic induction transducer technology to demonstrate the ability to perform an ultrasonic inspection of steel pipes with sensors separated from the pipe wall by a large distance which may be filled with an irregular layer of tar or other corrosion preventing coating. Thus, a direct assessment of a pipeline's integrity can be achieved from a single ultrasonic sensor placed on top of a partially excavated pipeline while it is still covered with a thick tar coating.
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Villada García, Sebastián. Diseño e Implementación de Filtros y Controladores PID para Estabilización de Sistemas Dinámicos. Universidad Nacional Abierta y a Distancia, 2023. http://dx.doi.org/10.22490/ecbti.7573.

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En este trabajo, se aborda el diseño y la implementación de filtros digitales y controladores PID discretos para estabilizar una función de transferencia dada. Utilizando la herramienta c2d de Matlab, se discretiza la función de transferencia original, y se observa que la planta no alcanza el valor deseado de 1. Se implementa un filtro digital multiplicando por un factor de escala. Posteriormente, se emplea el método del lugar geométrico de las raíces para analizar el comportamiento de la planta realimentada, revelando una respuesta lenta al escalón. Luego, se aplica el método de Ziegler-Nicho
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Grant, Charles. Diaphragm Walls as Permanent Basement Walls in Regions of High Seismicity. Deep Foundations Institute, 2018. http://dx.doi.org/10.37308/cpf-2012-slwl-1.

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Reinforced concrete structural slurry walls have been used in the United States since the early 1960s. The typical practice, and one that makes the economics of slurry walls particularly attractive, is to design the walls to act as both temporary excavation support and permanent basement walls. They often serve as multi-story basements and below grade parking for buildings, for tunnels, subway stations, and other buried structures. One of the early applications was for a foundation for a subway station in San Francisco, but for the most part they have been used more extensively in regions of l
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Kingston, A. W., and O. H. Ardakani. Diagenetic fluid flow and hydrocarbon migration in the Montney Formation, British Columbia: fluid inclusion and stable isotope evidence. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330947.

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The Montney Formation in Alberta and British Columbia, Canada is an early Triassic siltstone currently in an active diagenetic environment at depths greater than 1,000 m, but with maximum burial depths potentially exceeding 5,000 m (Ness, 2001). It has undergone multiple phases of burial and uplift and there is strong evidence for multiple generations of hydrocarbon maturation/migration. Understanding the origin and history of diagenetic fluids within these systems helps to unravel the chemical changes that have occurred since deposition. Many cores taken near the deformation front display abu
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Durrell, Josiah. The Paradox of Language: An Exploration of Abjection and Language in Play it as it Lays. Montana State University, 2025. https://doi.org/10.15788/1751923092.

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In Play It as It Lays by Joan Didion, we are presented with a character in the midst of a crisis of identity. Maria, a failed actress in Hollywood, is beset by many of the problems commonly associated with a rising star in the industry. A reliance on drugs, a commodification of the self, and a deteriorating sense of who she is all play into her downward spiral. Yet when we examine the reason that Maria lacks an actualized sense of self, the reader is presented with a paradox. If we take the words of French psychoanalyst Jacques Lacan to be true, then language serves to create a filter through
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