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Littérature scientifique sur le sujet « AC analysis and Butterworth filter »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 1 février 2022

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Articles de revues sur le sujet "AC analysis and Butterworth filter"

Mishra, Akshansh. "Machine Learning Algorithm for Surface Quality Analysis of Friction Stir Welded Joint." Strojnícky časopis - Journal of Mechanical Engineering 70, no. 2 (2020): 11–20. http://dx.doi.org/10.2478/scjme-2020-0016.

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AbstractThe Friction Stir Welding process usually produces weld members of good quality compared to composite weld made with a standard welding process. However, there is a possibility of the formation of various defects if the input parameters are not properly selected. In the recent case study, an image-based feature recognition system using the Fourier conversion method which is a computer visual recognition tool is developed. Five types of filters like Ideal Filter, Butterworth Filter, Low Filter, Gaussian Filter, and High Pass Filter. The results showed that the high pass filter has more

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Ms. Mohini Dadhe, Ms. Sneha Miskin. "Optimized Wireless Stethoscope Using Butterworth Filter." International Journal of New Practices in Management and Engineering 4, no. 03 (2015): 01–05. http://dx.doi.org/10.17762/ijnpme.v4i03.37.

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Acoustic stethoscope is a primary diagnostic tool used by doctors for effective analysis of various diseases. But, it suffers defects such as low level heart sounds and presence of murmurs. This project aims at developing ‘Noise removal in stethoscope using Butterworth filter’. In this, the low level heart sounds were amplified with high gain pre-amplifier circuit. A review of basic filters like low pass RC filter, Butterworth filter, Chebyshev filter and Bessel filter are done for elimination of murmurs and best suited filter is suggested. Finally, amplified noise free heart sounds are simula

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Cui, Ding Yu, Ke Gui Xin, and Quan Quan Qi. "Structural Modal Analysis Based on HHT and Butterworth Filter." Advanced Materials Research 255-260 (May 2011): 1836–40. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1836.

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Structural signal is taken self-adaptive decomposition by Hilbert-Huang Transform mainly composed of the EMD(empirical mode decomposition) and HT(Hilbert Transform), which is especially suitable for structural projects in the non-linear, non-stationary signal analysis through local characteristic. However, some weak signal may be ignored by EMD resulting in modal missing. Butterworth filter is an electronic filter designed to have flat frequency response. Considering the influence of noise , Hilbert-Huang Transform and Butterworth band pass filter are applied together to process the structural

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Stojanovic, Vidosav, Negovan Stamenkovic, and Nikola Stojanovic. "Active RC filter based implementation analysis part of two channel hybrid filter bank." Serbian Journal of Electrical Engineering 11, no. 4 (2014): 565–84. http://dx.doi.org/10.2298/sjee1404565s.

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In the present paper, a new design method for continuous-time powersymmetric active RC filters for Hybrid Filter Bank (HFB) is proposed. Some theoretical properties of continious-time power-symmetric filters bank in a more general perspective are studied. This includes the derivation of a new general analytical form, and a study of poles and zeros locations in s-plane. In the proposed design method the analytic solution of filter coefficients is solved in sdomain using only one nonlinear equation Finally, the proposed approximation is compared to standard approximations. It was shown that atte

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D.Yusuf, Samson, Francis C. Maduakolam, Ibrahim Umar, and Abdulmumini Z.Loko. "Analysis of Butterworth Filter For Electrocardiogram De-Noising Using Daubechies Wavelets." International Journal of Electronics and Communication Engineering 7, no. 4 (2020): 8–13. http://dx.doi.org/10.14445/23488549/ijece-v7i4p103.

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Chen, Dixiang, Wuqiang Yang, and Mengchun Pan. "The dynamic response of a Butterworth low-pass filter in an ac-based electrical capacitance tomography system." Measurement Science and Technology 21, no. 10 (2010): 105505. http://dx.doi.org/10.1088/0957-0233/21/10/105505.

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Wang, Yong Jing, Jin Ping Ge, Yin Wang, and Ling Zhang. "Stability Analysis of the AC Filter Capacitor Structure." Applied Mechanics and Materials 664 (October 2014): 326–30. http://dx.doi.org/10.4028/www.scientific.net/amm.664.326.

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In the UHV DC transmission engineering, mechanical strength and reliability of the capacitor structure is the premise to resist natural disasters such as earthquake or fierce wind. However, there are some unreasonable design problems or phenomena in which the structural strength and stiffness can not meet the structural stability requirements. In this paper, by using Solid Works software, the solid models of the capacitor structure with tilting layer and without tilting one are presented respectively at first. And then, the dynamic simulations of the structure are carried out by means of finit

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Sharma, Aditi, and Vijay Maheshwari. "Matlab Analysis of Image Smoothening By Butterworth and Gaussian Low Pass Filter." International Journal of Computer Applications 179, no. 50 (2018): 31–36. http://dx.doi.org/10.5120/ijca2018917347.

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Laghari, Wazir Muhammad, Mohammad Usman Baloch, Muhammad Abid Mengal, and Syed Jalal Shah. "Performance Analysis of Analog Butterworth Low Pass Filter as Compared to Chebyshev Type-I Filter, Chebyshev Type-II Filter and Elliptical Filter." Circuits and Systems 05, no. 09 (2014): 209–16. http://dx.doi.org/10.4236/cs.2014.59023.

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Gul, Tuba Nur, and Ali Kircay. "The Design of Fifth-Order Butterworth Lowpass Log-Domain Filter for Bluetooth/Wi-Fi Receiver Using Signal Flow Graph Method." Journal of Circuits, Systems and Computers 26, no. 01 (2016): 1750011. http://dx.doi.org/10.1142/s0218126617500116.

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In this study, a fifth-order lowpass log-domain Butterworth filter, which is appropriate for Bluetooth/Wi-Fi receiver, is designed with signal flow graph approach. The filter is realized by using a unique translinear integrator circuit. Bluetooth and Wi-Fi modes are obtained without changing the circuit configuration. To change the mode of the filter, it is needed to change the cutoff frequency of the filter that can be electronically tuned by adjusting the external currents. Wi-Fi and Bluetooth receivers have 6[Formula: see text]MHz and 600[Formula: see text]kHz cutoff frequencies, respective

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Thèses sur le sujet "AC analysis and Butterworth filter"

Karlsson, Mattias. "COMPARISON AND EVALUATION OF HARDWARE MODELLING AND SIMULATION TOOLS." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Data- och elektroteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-16734.

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Avionics Division of Saab AB develops advanced electronics that need to be robust and work in harsh environments with for example extreme temperatures and cosmic radiation without any failure. To succeed with this the electronics need to be simulated and tested. Therefore this thesis work is done to strengthen the Avionics Division’s knowledge of hardware modelling and simulation by evaluating the simulation tools LTSpice, PSpice and SystemVision, their functions and capabilities. In this thesis a survey is carried out with help of a questionnaire to study the Avionics Division’s needs for sim

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Erer, Koray Savas. "Verification And Matlab Implementation Of The Inverse Dynamics Model Of The Metu Gait Analysis System." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609360/index.pdf.

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The METU Gait Analysis System employs a computer program called Kiss-GAIT for the calculation of joint angles, moments and powers using force plate data and marker trajectories as input. Kiss-GAIT was developed using Delphi and is confined to calculations related to the standard gait protocol. Because the code lacks the flexibility required to carry out various test cases, the inverse dynamics formulation being used could not be verified and the extent of the error propagation problem could not be determined so far. The first aim of this study was to develop a code for the inverse dynamics mod

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Al-Bayaty, Hussein Kamal Anwer. "Novel methods of utilization, elimination, and description of the distortion power in electrical circuits." Thesis, University of Plymouth, 2018. http://hdl.handle.net/10026.1/10646.

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Firstly, this thesis investigates the electrical power harmonics in an attempt to utilize harmonic current and its distortion power in a novel idea to reconvert the distortion power into useful power. This is done, in order to feed different DC or AC loads in single and three-phase power system by using passive or active filters and accordingly, develop a new topology of hybrid active power filter (HAPF). In addition, this circuit can be considered as a power factor corrector (PFC) because it reduces the total harmonic distortion (THD) and improves the power factor (PF). Secondly, this thesis

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Komaragiri, Murali K. "Design and analysis of AC harmonic filter near a HVDC station using optimization techniques." Thesis, 1989. http://spectrum.library.concordia.ca/2920/1/ML51362.pdf.

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Hoang, Thai Duy. "Fourier and Variational Based Approaches for Fingerprint Segmentation." Doctoral thesis, 2015. http://hdl.handle.net/11858/00-1735-0000-0022-5FEF-2.

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Chapitres de livres sur le sujet "AC analysis and Butterworth filter"

Samagaio, Gabriela, Joaquim de Moura, Jorge Novo, and Marcos Ortega. "Optical Coherence Tomography Denoising by Means of a Fourier Butterworth Filter-Based Approach." In Image Analysis and Processing - ICIAP 2017. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-68548-9_39.

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Nayak, Seema, and Amrita Rai. "Synthesis and Analysis of Optimal Order Butterworth Filter for Denoising ECG Signal on FPGA." In Algorithms for Intelligent Systems. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4936-6_39.

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Lodin, Obaidullah, Inderpreet Kaur, and Harpreet Kaur. "Design and Analysis of THD with Single-Tuned Filter for Five-Phase DC to AC Converter Drive." In Cognitive Informatics and Soft Computing. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1451-7_53.

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"Microwave Filter Analysis and Design." In Practical Approach to Substrate Integrated Waveguide (SIW) Diplexer. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2084-0.ch003.

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A microwave filter is a two-port component usually employed when there is a need to control the frequency response at any given point in a microwave system. They provide transmission at certain frequencies, which are known as the passband frequencies, and attenuation at other frequencies, which are referred to as the stopband frequencies. The frequencies outside the passband are attenuated or reflected. Microwave filter is often named after the polynomial used to form its transfer function (i.e., Chebyshev, Butterworth [or maximally flat], Elliptical, etc.). The filter can be further sub-divided into four categorises (i.e., lowpass, highpass, bandstop, and bandpass filters) according to its frequency responses. This chapter gives a detailed discussion on filter classification and transfer function. It also covers the analysis, design, and implementation of a test microwave filter using the 21st century SIW transmission line. The simulation and measurement results of the test filter is also presented, compared, and discussed.

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Vijayakumari B. "Noise Removal With Filtering Techniques." In Advancements in Security and Privacy Initiatives for Multimedia Images. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-2795-5.ch006.

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An overview of the image noise models and the de-noising techniques available are presented here. Basically, filtering is one of the de-noising approaches that is normally performed in both spatial and frequency domains. Thus, this chapter focuses on these two approaches. Few filters like mean, median, sharpening, and adaptive median filter are discussed under spatial domain. In the frequency domain, as Butterworth filter suits better for images, Butterworth low pass, high pass, and band pass filters along with homomorphic filters are also analyzed. It also provides a comparative analysis of these approaches for both synthetic and medical images with some performance measures.

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Selvaraju, Vinothini, P. A. Karthick, and Ramakrishnan Swaminathan. "Analysis of Frequency Bands of Uterine Electromyography Signals for the Detection of Preterm Birth." In Studies in Health Technology and Informatics. IOS Press, 2021. http://dx.doi.org/10.3233/shti210165.

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In this work, an attempt has been made to analyze the influence of the frequencies bands in uterine electromyography (uEMG) signals on the detection of preterm birth. The signals recorded from the women’s abdomen during pregnancy are considered in this study. The signals are subjected to preprocessing using digital bandpass Butterworth filter and decomposed into different frequency bands namely, 0.3-1.0 Hz (F1), 1.0-2.0 Hz (F2) and 2.0-3.0Hz (F3). Spectral features namely, peak magnitude, peak frequency, mean frequency and median frequency are extracted from the power spectrum. Classification models namely, k-nearest neighbor, support vector machine and random forest are employed to distinguish the term and preterm conditions. The results show that the features extracted from these frequency bands are able to differentiate term and preterm condition. Particularly, the frequency band F3 performs better than other frequency bands. The features associated with these frequencies along with random forest classification model achieves a maximum accuracy of 75.2%. Thus, these measures could be used to accurately detect the preterm birth well in advance.

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Actes de conférences sur le sujet "AC analysis and Butterworth filter"

Li Zhongshen. "Design and Analysis of Improved Butterworth Low Pass Filter." In 2007 8th International Conference on Electronic Measurement and Instruments. IEEE, 2007. http://dx.doi.org/10.1109/icemi.2007.4350554.

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Jagtap, Sonal K., and M. D. Uplane. "The impact of digital filtering to ECG analysis: Butterworth filter application." In 2012 International Conference on Communication, Information & Computing Technology (ICCICT). IEEE, 2012. http://dx.doi.org/10.1109/iccict.2012.6398145.

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Pavana M.G., Shashikala N., and Manisha Joshi. "Design, development and Comparative performance analysis of Bessel and Butterworth filter for Nadi Pariksha yantra." In 2016 IEEE International Conference on Engineering and Technology (ICETECH). IEEE, 2016. http://dx.doi.org/10.1109/icetech.2016.7569413.

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Patti, Facundo M., Marcos D. Magallanes, Griselda Zafra, Jonathan E. Bosso, and Federico M. Serra. "Analysis of a single-phase AC-AC SST and a grid filter design methodology." In 2020 IEEE Congreso Bienal de Argentina (ARGENCON). IEEE, 2020. http://dx.doi.org/10.1109/argencon49523.2020.9505333.

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Gothane, Ankita R., Bhakti B. Baliwant, and V. B. Waghmare. "Simulation and Analysis of Series Active Filter Using AC-AC Converter for Mitigation of Sag." In 2019 3rd International Conference on Computing Methodologies and Communication (ICCMC). IEEE, 2019. http://dx.doi.org/10.1109/iccmc.2019.8819629.

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Mart-ro, Pravit, Warachart Sae-Kok, and Surin Khomfoi. "Analysis of dv/dt filter installation for PWM AC drive applications." In 2011 IEEE Ninth International Conference on Power Electronics and Drive Systems (PEDS 2011). IEEE, 2011. http://dx.doi.org/10.1109/peds.2011.6147243.

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Prochazka, P., I. Pazdera, P. Vorel, and D. Cervinka. "Analysis of DC/AC converter with non-usual topology of output LC filter." In 2012 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM 2012). IEEE, 2012. http://dx.doi.org/10.1109/speedam.2012.6264562.

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Cong, O., and M. Yongchang. "Fault analysis and operation maintenance strategy of AC filter capacitors in DC system." In The 16th IET International Conference on AC and DC Power Transmission (ACDC 2020). Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/icp.2020.0159.

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Zhang, L., Y. Shi, X. Pan, and K. Li. "Analysis of Harmonic Amplification in AC Traction Systems Using LCL Filter with Active Damping." In The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020). Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/icp.2021.0957.

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Samman, Faizal Arya, Maarif Hasan, and Tirza Damayanti. "Design and analysis of DC/AC inverter using passive LCL filter with damping circuit configuration." In 2017 International Seminar on Intelligent Technology and its Applications (ISITIA). IEEE, 2017. http://dx.doi.org/10.1109/isitia.2017.8124053.

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