Academic literature on the topic 'Radiofrequency interference'

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Journal articles on the topic "Radiofrequency interference"

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Follett, D. H. "Electromagnetic radiofrequency interference with Doppler equipment." Physics in Medicine and Biology 36, no. 11 (1991): 1443–55. http://dx.doi.org/10.1088/0031-9155/36/11/004.

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Badizadegan, Nima D., Sarah Greenberg, Heather Lawrence, and Kamran Badizadegan. "Radiofrequency Interference in the Clinical Laboratory." American Journal of Clinical Pathology 151, no. 5 (2019): 522–28. http://dx.doi.org/10.1093/ajcp/aqy174.

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Sadykov, E. K., V. V. Arinin, F. G. Vagizov, and O. A. Kocharovskaya. "Radiofrequency stimulated quantum interference on Mössbauer transitions." Laser Physics 17, no. 5 (2007): 727–33. http://dx.doi.org/10.1134/s1054660x07050209.

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Kwok, Wingchi Edmund. "Radiofrequency interference in magnetic resonance imaging: Identification and rectification." Journal of Clinical Imaging Science 14 (September 5, 2024): 33. http://dx.doi.org/10.25259/jcis_74_2024.

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Radiofrequency (RF) interference artifact is a common type of magnetic resonance imaging (MRI) artifacts caused by the presence of unwanted RF field inside the scanner room. The artifact has the appearance of parallel bright lines or bands that resemble zippers, which can mimic pathology, obstruct the viewing of underlining tissues, and lower image signal-to-noise ratio, affecting the diagnostic evaluation of the image and sometimes even rendering it non-diagnostic. Due to the presence of multiple possible sources of RF interference in MRI and potential nonrelated MRI artifacts that resemble R
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Rohalin, Serhii. "METHODS OF IMPLEMENTATION OF EXPERT STUDIES OF ELECTRICITY MEASURING DEVICES EXPOSED TO THE IMPACT OF RADIO-FREQUENCY ELECTROMAGNETIC RADIATION." Criminalistics and Forensics, no. 67 (August 9, 2022): 493–507. http://dx.doi.org/10.33994/kndise.2022.67.50.

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Investigation of the influence of electromagnetic radiation on the operation of electronic metering devices for electricity is one of the demanded areas of forensic electrical engineering expertise. However, the scientific and practical study of this area of forensic research does not coincide with modern requirements. The study of the influence of electromagnetic radiation of the radio frequency range on the operation of electronic metering devices for electricity, as well as the identification of such radiation as accidental or intentionally created for the purpose of unaccounted consumption
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Pilinsky, V. V., and V. B. Shvaichenko. "FEATURES OF ENSURING ELECTROMAGNETIC COMPATIBILITY OF UNINTERRUPTIBLE POWER SYSTEMS." Tekhnichna Elektrodynamika 2024, no. 4 (2024): 40–44. http://dx.doi.org/10.15407/techned2024.04.040.

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An overview of the main structures of uninterruptible power systems is provided. The impact on internal-system and external-system electromagnetic compatibility of these devices is determined. Contemporary standards and requirements for ensuring electromagnetic compatibility of uninterruptible power systems are analyzed. Features of the structures of uninterrupted power systems such as online, offline and line interactive by the conductive path of propagation of interference are given. The main advantages of eco uninterrupted power supply are summarized. A generalized approach is proposed for
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Kusumawardhani, Eka, Putra Leonardus Sandy Ade, Ikbal Mawaldi, Ade Kurniawan, and Wawan Kurnawan. "Enhancing monitoring systems with interference-handling radio frequency direction finding: BMKG C-Band weather radar in West Kalimantan Indonesia case study." International Journal of Electrical and Computer Engineering (IJECE) 15, no. 1 (2025): 414–24. https://doi.org/10.11591/ijece.v15i1.pp414-424.

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This study investigates the effectiveness of the interference-handling radiofrequency direction finding (RFDF) monitoring system in detecting andlocalizing interference sources near the BMKG C-Band weather radar inWest Kalimantan, Indonesia. We conducted field tests varying interferencetransmitter power levels (0-30 dBm) and distances (100, 500, and 1,000 m)from the radar. Results indicate the RFDF system's robust performance,consistently detecting interference within 5-20 minutes and accuratelylocalizing sources with minimal deviation from actual positions. Thefindings confirm the system's su
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Barnett, Gene H., Allan H. Ropper, and Keith A. Johnson. "Physiological support and monitoring of critically ill patients during magnetic resonance imaging." Journal of Neurosurgery 68, no. 2 (1988): 246–50. http://dx.doi.org/10.3171/jns.1988.68.2.0246.

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✓ Magnetic resonance (MR) imaging has been largely restricted to patients who are neurologically and hemodynamically stable. The strong magnetic field and radiofrequency transmissions involved in acquiring images are potential sources of interference with monitoring equipment. A method of support and physiological monitoring of critically ill neurosurgical and neurological patients during MR imaging using a 0.6-tesla MR system is reported. This technique has not caused degradation of the MR image due to electrical interference. Adequate preparation and precautions allow many critically ill neu
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Carlone, M., B. Burke, M. Lamey, S. Rathee, and B. Fallone. "SU-GG-J-161: Radiofrequency Interference Between a Linac and MRI." Medical Physics 35, no. 6Part8 (2008): 2716. http://dx.doi.org/10.1118/1.2961710.

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Shetty, Anil N. "Suppression of radiofrequency interference in cardiac gated MRI: A simple design." Magnetic Resonance in Medicine 8, no. 1 (1988): 84–88. http://dx.doi.org/10.1002/mrm.1910080110.

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Dissertations / Theses on the topic "Radiofrequency interference"

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MUSUMECI, LUCIANO. "Advanced signal processing techniques for interference removal in Satellite Navigation Systems." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2550137.

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This thesis investigates the use of innovative interference detection and mitigation techniques for GNSS based applications. The main purpose of this thesis is the development of advanced signal processing techniques outperforming current interference mitigation algorithms already implemented in off-the-shelf GNSS receivers. State-of-the-art interference countermeasures already investigated in literature, which process the signal at the ADC output, provide interference components suppression in the time domain or in the frequency domain, thus leading to a significant signal degradation in harm
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Oudji, Salma. "Analyse de la robustesse et des améliorations potentielles du protocole RadioFréquences Sub-GHz KNX utilisé pour l’IoT domotique." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0121/document.

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Cette thèse aborde la performance du protocole KNX-RF utilisé dans les applications domotiques en termes de robustesse Radio Fréquences dans un environnement multi-protocoles potentiellement sujet aux interférences. Dans ces travaux, le but est d’évaluer les problématiques d’interférences rencontrées par KNX-RF en utilisant des modèles de simulation qui permettraient d’augmenter à sa fiabilité radio. Ainsi, un premier modèle a été développé sur MATLAB/Simulink et a permis de connaître les performances et les limitations de ce protocole au niveau de la couche physique dans un scénario d’interfé
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Millot, Anthony. "Etude d'un réseau de capteurs environnementaux en bande ISM." Phd thesis, Université d'Orléans, 2010. http://tel.archives-ouvertes.fr/tel-00573695.

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Cette thèse présente l'étude d'un réseau de capteurs pour la surveillance en temps réel de la qualité des eaux souterraines. L'objectif est de réussir à communiquer dans la bande de fréquences libre à 433MHz sur plusieurs dizaines de kilomètres. Le problème majeur des bandes libres est la présence de transmissions parasites (brouilleurs). Nous avons donc, en premier lieu, mis en évidence de la présence de ces brouilleurs et étudier leur impact sur les communications. Après analyse, il s'avère que les brouilleurs sont très nombreux et puissants mais que leur répartition dans la bande est inégal
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Mhiri, Yassine. "Contributions aux méthodes de calibration et d'imagerie pour les radio-interféromètres en présence d'interférences." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST111.

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Les radiotélescopes interféromètres permettent de reconstruire des images des émissions radio provenant de sources célestes. Ces images sont d'un grand intérêt pour les radioastronomes et les astrophysiciens car elles permettent d'obtenir des informations sur les phénomènes physiques en place dans l'univers. Pour cela, une première étape de calibration est nécessaire pour estimer et corriger les effets perturbateurs notamment liés à l'instrument et à la propagation du signal d'intérêt dans l'atmosphère. Des algorithmes d'imageries sont ensuite mis en œuvre pour reconstruire une image du ciel.
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Books on the topic "Radiofrequency interference"

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Roger, Dalke, and United States. National Telecommunications and Information Administration., eds. Spectrum measurements for an RF-driven lighting device. U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1999.

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Gruber, Michael, and Kenneth Wyatt. Radio Frequency Interference (RFI) Pocket Guide. SciTech Publishing, Incorporated, 2015.

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Radio Frequency Interference (RFI) Pocket Guide. SciTech Publishing, Incorporated, 2015.

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Spectrum measurements for an RF-driven lighting device. U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1999.

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Hand, Jeffrey W. Electromagnetic fields. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199655212.003.0023.

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Basic characteristics of electromagnetic fields in the microwave, radiofrequency, and extremely low frequency ranges and their interactions with biological tissues are introduced, and parameters such as polarization and specific absorption rate used for safety assessment are highlighted. Techniques and instrumentation for measuring these parameters are discussed. The concepts of dosimetry are introduced and examples of electromagnetic field safety guidelines and standards are outlined. The chapter closes with a discussion of some topics directly relevant to safety of clinical procedures, such
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Radiofrequency radiation: Health effects and interference : status of current research and regulation : a report to the General Assembly : pursuant to Act 182 of the 1995 session. Vermont Dept. of Public Service, 1996.

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Wireless Power Transfer: Theory, Technology, and Applications. Institution of Engineering & Technology, 2018.

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Krikidis, Ioannis, and Gan Zheng. Advanced Relay Technologies in Next Generation Wireless Communications. Institution of Engineering & Technology, 2016.

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Advanced Relay Technologies in Next Generation Wireless Communications. The Institution of Engineering and Technology, 2016.

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Arslan, Hüseyin, and Ertuğrul Başar. Flexible and Cognitive Radio Access Technologies for 5G and Beyond. Institution of Engineering & Technology, 2020.

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Book chapters on the topic "Radiofrequency interference"

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Steffel, Jan. "Electromagnetic interference in pacemaker patients." In ESC CardioMed, edited by Giuseppe Boriani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0466.

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In spite of the development of specific shielding of electronic devices as well as the current-day preference for bipolar sensing, electromagnetic interference (EMI) may still occur with certain pacemakers in certain settings, which in turn may lead to false inhibition of ventricular stimulation with potentially fatal consequences. The most important sources of clinically relevant EMI include medical diagnostics and therapy (e.g. magnetic resonance imaging, radiofrequency ablation, cardioversion/defibrillation, and electrocautery), the working environment (including high-power lines, combustio
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Steffel, Jan. "Electromagnetic interference in pacemaker patients." In ESC CardioMed, edited by Giuseppe Boriani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0466_update_001.

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In spite of the development of specific shielding of electronic devices as well as the current-day preference for bipolar sensing, electromagnetic interference (EMI) may still occur with certain pacemakers in certain settings, which in turn may lead to false inhibition of ventricular stimulation with potentially fatal consequences. The most important sources of clinically relevant EMI include medical diagnostics and therapy (e.g. magnetic resonance imaging, radiofrequency ablation, cardioversion/defibrillation, and electrocautery), the working environment (including high-power lines, combustio
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Robson, Matthew. "7 T cardiac imaging." In The EACVI Textbook of Cardiovascular Magnetic Resonance, edited by Massimo Lombardi, Sven Plein, Steffen Petersen, et al. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198779735.003.0062.

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By increasing the field strength of the magnet used for magnetic resonance imaging (MRI), the available signal from the patient is enhanced, and this basic physics principle has driven the clinical MRI market to ever higher field strengths. Seven Tesla (7 T) scanners yield 4-5 times more signal than 1.5 T scanners; this signal-to-noise ratio increase facilitates high-resolution imaging, faster imaging when using accelerated techniques such as SENSE and GRAPPA, and greater sensitivity to low-concentration metabolites. Magnetic resonance spectroscopy acquisitions also benefit, owing to the great
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Kumar, Rajeev, Tejendra K. Gupta, Neeraj Dwivedi, and D. P. Mondal. "Lightweight Carbon Composite Foams for Electromagnetic Interference Shielding Applications." In Smart Materials Design for Electromagnetic Interference Shielding Applications. BENTHAM SCIENCE PUBLISHERS, 2022. http://dx.doi.org/10.2174/9789815036428122010005.

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In the modern technological era, various electronic devices are being widely used in proportion to the fast-growing demand in society. These devices have created electronic pollutions such as electronic noise, electromagnetic interference (EMI), and radiofrequency interference (RFI), leading to improper functioning of electronic devices. In view of mitigating these detrimental effects, strong EMI shielding materials are required. In recent years, carbon composite foams have attracted worldwide interest due to their outstanding properties such as lightweight, interconnected porosity, high surfa
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Bhat, Mohd Shahid. "MRI ARTIFACTS." In MEDICAL DIAGNOSTICS: LABORATORY TO RADIOLOGICAL IMAGING. KAAV PUBLICATIONS, 2024. http://dx.doi.org/10.52458/9788196919528.2024.eb.ch-11.

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A non-invasive medical imaging method called magnetic resonance imaging (MRI) is renowned for its remarkable soft tissue contrast and diagnostic powers. Nevertheless, a number of artifacts can affect the acquisition process, especially those related to the patient and the equipment. This abstract investigates MRI artifacts resulting from patient and equipment factors. Artifacts pertaining to equipment comprise a wide range of problems, from magnetic field distortions to hardware malfunctions. Common causes of signal distortions and geometric errors include gradient nonlinearity, radiofrequency
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Kozerke, Sebastian, Redha Boubertakh, and Marc Miquel. "Image quality and artefacts." In The EACVI Textbook of Cardiovascular Magnetic Resonance, edited by Massimo Lombardi, Sven Plein, Steffen Petersen, et al. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198779735.003.0009.

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Good and reproducible image quality is essential for clinical diagnosis. Although image quality can be defined in numerous ways, signal-to-noise and contrast-to-noise ratios are often used as indicators. Despite our best efforts, image artefacts are part and parcel of CMR imaging and are sometimes unavoidable. Image artefacts can be caused by patients (e.g. motion, chemical shift artefacts), image acquisition and reconstruction (e.g. foldover artefacts), or equipment/external interferences (e.g. radiofrequency leakage). The most common image artefacts encountered in cardiac imaging and strateg
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Conference papers on the topic "Radiofrequency interference"

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Dovzhenko, Alexander, Vladimir Pilinsky, Vladimir Shvaichenko, and Elena Shvaichenko. "Intelligent Mains Radiofrequency Interference Filters." In 2010_EMC-Europe_Wroclaw. IEEE, 2010. https://doi.org/10.23919/emc.2010.10826290.

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Barron, Darcy. "Radiofrequency Interference Issues and Mitigation for CMB-S4." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10906960.

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Idres, Samer, and Hossein Hashemi. "Ultra-Wideband Radiofrequency Self-Interference Canceller Using Silicon Photonics Switched Delay Lines." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jth2a.86.

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We experimentally demonstrate radiofrequency self-interference cancellation across an instantaneously ultra-wide bandwidth using 8-bit switched low-loss optical delay-line implemented in a commercial silicon photonics foundry. Cancellation of 14 dB is achieved for 8 GHz UWB signal.
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Vernhes, Richard, Oleg Zabeida, Jolanta Klemberg-Sapieha, and Ludvik Martinu. "Properties, Growth and Filter Applications of a-SiN^x:H Alloys Prepared in Pulsed Radiofrequency Plasma." In Optical Interference Coatings. OSA, 2007. http://dx.doi.org/10.1364/oic.2007.md10.

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Tariq, Raja Usman, Ye Ming, Cao Zhi, et al. "Passive Intermodulation Measurement of Radiofrequency Interference Shielding Gasket." In 2019 International Applied Computational Electromagnetics Society Symposium - China (ACES). IEEE, 2019. http://dx.doi.org/10.23919/aces48530.2019.9060437.

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"Biological effects and health implication of radiofrequency and microwave." In Proceedings of the International Conference on Electromagnetic Interference and Compatibility'99. IEEE, 1999. http://dx.doi.org/10.1109/icemic.1999.871681.

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Wright, J. C., and P. T. Bonoli. "Interference effects on quasilinear diffusion of lower hybrid waves." In RADIOFREQUENCY POWER IN PLASMAS: Proceedings of the 20th Topical Conference. American Institute of Physics, 2014. http://dx.doi.org/10.1063/1.4864581.

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Olivier, Ronciere, Pascal Marchand, and Sylvain Chenu. "On the use of electromagnetic simulation in front door radiofrequency interference." In 2017 International Conference on Military Communications and Information Systems (ICMCIS). IEEE, 2017. http://dx.doi.org/10.1109/icmcis.2017.7956492.

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Chongyu, Wei, Liu Chen, and Yang Yang. "The design of cancellation unit against radiofrequency interference in life-detection radar." In 2010 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2010. http://dx.doi.org/10.1109/icmmt.2010.5524837.

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Lefcourt, Samuel, Nathaniel Gordon, Hanting Wong, and Gregory Falco. "Space Cognitive Communications: Characterizing Radiofrequency Interference to Improve Digital Space Domain Awareness." In 2022 International Conference on Localization and GNSS (ICL-GNSS). IEEE, 2022. http://dx.doi.org/10.1109/icl-gnss54081.2022.9797033.

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