Letteratura scientifica selezionata sul tema "Radio astronomy"

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Articoli di riviste sul tema "Radio astronomy"

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Baldwin, J. E., P. G. Mezger, A. Barrett, et al. "40. Radio Astronomy (Radio Astronomie)." Transactions of the International Astronomical Union 20, no. 01 (1988): 539–66. http://dx.doi.org/10.1017/s0251107x00007379.

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The following commission members have contributed to this report:M Birkinshaw, R J Cohen, J J Condon, T J Cornwell, J R Dickel, P A Feldman, R Genzel, M Goss, V Kapahl, Gopal Krishna, M Kundu, A G Lyne, C R Masson, A C Readhead, W Reich, J M Riley, A J Turtle, J M van der Hulst, T L Wilson.
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Bowler, Sue. "Nigeria's first radio astronomer." Astronomy & Geophysics 61, no. 5 (2020): 5.28–5.30. http://dx.doi.org/10.1093/astrogeo/ataa072.

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Matejka, A. "Radio Astronomy." Minnesota review 2012, no. 78 (2012): 3. http://dx.doi.org/10.1215/00265667-1550437.

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Bradfield, Philip. "X-ceedingly good." Physics World 37, no. 5 (2024): 29iii. http://dx.doi.org/10.1088/2058-7058/37/05/26.

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Frater, R. H., W. M. Goss, and H. W. Wendt. "Bernard Yarnton Mills 1920–2011." Historical Records of Australian Science 24, no. 2 (2013): 294. http://dx.doi.org/10.1071/hr13002.

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Bernie Mills is remembered globally as an influential pioneer in the evolving field of radio astronomy. His contributions with the ‘Mills Cross' at the CSIRO Division of Radiophysics and later at the University of Sydney's School of Physics and the development of the Molonglo Observatory Synthesis Telescope (MOST) were widely recognized as astronomy evolved in the years 1948–85 and radio astronomy changed the viewpoint of the astronomer as a host of new objects were discovered.
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Frater, R. H., W. M. Goss, and H. W. Wendt. "Bernard Yarnton Mills AC FAA. 8 August 1920 — 25 April 2011." Biographical Memoirs of Fellows of the Royal Society 59 (January 2013): 215–39. http://dx.doi.org/10.1098/rsbm.2013.0015.

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Bernie Mills is remembered globally as an influential pioneer in the evolving field of radio astronomy. His contributions with the ‘Mills Cross’ at the Commonwealth Scientific and Industrial Research Organisation (CSIRO) Division of Radiophysics and later at the University of Sydney’s School of Physics and the development of the Molonglo Observatory Synthesis Telescope (MOST) were widely recognized as astronomy evolved in the years 1948–85 and radio astronomy changed the viewpoint of the astronomer as a host of new objects were discovered.
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Cohen, R. J. "Radio Astronomy and the Radio Regulations." Symposium - International Astronomical Union 196 (2001): 220–28. http://dx.doi.org/10.1017/s0074180900164137.

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This article gives a brief introduction to the status of radio astronomy within the International Telecommunication Union (ITU), the body which coordinates global telecommunications. Radio astronomy entered the ITU arena in 1959 as a relative latecomer. By its nature, radio astronomy does not fit into the ITU system very well: regulators are hoping to facilitate commercial development of the radio spectrum, whereas astronomers are hoping to retain quiet frequency bands through which to study the Universe at ever higher sensitivity. Nevertheless there are major long-term goals which radio astro
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Mitton, Simon. "Book Review: Radio Astronomy Reprints: Classics in Radio Astronomy." Journal for the History of Astronomy 17, no. 3 (1986): 212. http://dx.doi.org/10.1177/002182868601700315.

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Swarup, Govind. "The Journey of a Radio Astronomer: Growth of Radio Astronomy in India." Annual Review of Astronomy and Astrophysics 59, no. 1 (2021): 1–19. http://dx.doi.org/10.1146/annurev-astro-090120-014030.

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In this autobiographical account, I first describe my family, then childhood and education in India. During 1953–55, I worked in the new field of radio astronomy at the Division of Radiophysics of the Commonwealth Scientific and Industrial Research Organisation in Australia. During 1956–57, I worked at the Radio Astronomy Station of Harvard University at Fort Davis, Texas, where I made observations of solar radio bursts at decimeter wavelengths. I then joined Stanford University as a graduate student in 1957. I contributed to the successful operation of the Stanford Cross Antenna and then used
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Kellermann, K. I., J. Baldwin, J. G. Abies, et al. "40. Radio Astronomy." Transactions of the International Astronomical Union 19, no. 1 (1985): 549–80. http://dx.doi.org/10.1017/s0251107x00006623.

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The last triennium marked the 50th anniversary of the paper describing the first observations of cosmic radio emission by Karl Jansky in 1933. Sullivan (82 Classics in Radio Astronomy, Reidel) has published a collection of the major historical papers in radio astronomy, and collections of papers discussing the historical development have been published by Sullivan (84 Early Years of Radio Astronomy, Cambridge Univ. Press) and by Kellermann and Sheets (84 Serendipitous Discoveries in Radio Astronomy, NRAO).
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Tesi sul tema "Radio astronomy"

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Van, Tonder Vereese. "Beamforming for radio astronomy." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96126.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Beamforming is a technique used to combine signals from an array of antennas to effectively synthesize a single aperture and beam. In the Radio Astronomy community the technique is used to obtain a desirable beam pattern as well as to electronically point the beam of an array. Next generation radio telescopes such as the Square Kilometre Array (SKA) surpass current technology and will extensively make use of beamforming techniques. Various factors determine the output of a beamformer; however, given an array with a fixe
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Junklewitz, Henrik. "Statistical inference in radio astronomy." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-177457.

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This thesis unifies several studies, which all are dedicated to the subject of statistical data analysis in radio astronomy and radio astrophysics. Radio astronomy, like astronomy as a whole, has undergone a remarkable development in the past twenty years in introducing new instruments and technologies. New telescopes like the upgraded VLA, LOFAR, or the SKA and its pathfinder missions offer unprecedented sensitivities, previously uncharted frequency domains and unmatched survey capabilities. Many of these have the potential to significantly advance the science of radio astrophysics a
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Thompson, Nicholas Christopher. "RFI mitigation in radio astronomy." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86637.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Technical advances in electromagnetics, signal processing and processing power have led to a significant increase in sensitivity and accuracy in radio telescopes. With this increase in sensitivity, radio frequency interference (RFI) has become a much larger problem. The notable growth in wireless communication as well as self generated RFI has further escalated this problem. In order to utilise the full capabilities of modern radio telescopes, RFI mitigation is required on the captured signals. With the enormous data rate
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Mitchell, Daniel Allan. "Interference Mitigation in Radio Astronomy." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/693.

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This thesis investigates techniques and algorithms for mitigating radio frequency interference (RFI) affecting radio astronomy observations. In the past radio astronomy has generally been performed in radio-quiet geographical locations and unused parts of the radio spectrum, including small protected frequency bands. The increasing use of the entire spectrum and global transmitters such as satellites are forcing the astronomy community to begin implementing active interference cancelling. The amount of harmful interference affecting observations will also increase as future instruments such as
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Mitchell, Daniel Allan. "Interference Mitigation in Radio Astronomy." University of Sydney. Physics, 2004. http://hdl.handle.net/2123/693.

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This thesis investigates techniques and algorithms for mitigating radio frequency interference (RFI) affecting radio astronomy observations. In the past radio astronomy has generally been performed in radio-quiet geographical locations and unused parts of the radio spectrum, including small protected frequency bands. The increasing use of the entire spectrum and global transmitters such as satellites are forcing the astronomy community to begin implementing active interference cancelling. The amount of harmful interference affecting observations will also increase as future instruments such as
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Bock, Douglas Carl-Johan. "Wide Field Aperture Synthesis Radio Astronomy." University of Sydney. Physics, 1998. http://hdl.handle.net/2123/377.

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This thesis is focussed on the Molonglo Observatory Synthesis Telescope (MOST), reporting on two primary areas of investigation. Firstly, it describes the recent upgrade of the MOST to perform an imaging survey of the southern sky. Secondly, it presents a MOST survey of the Vela supernova remnant and follow-up multiwavelength studies. The MOST Wide Field upgrade is the most significant instrumental upgrade of the telescope since observations began in 1981. It has made possible the nightly observation of fields with area ~5 square degrees, while retaining the operating frequency of
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Ngongoni, Chipo Nancy. "Neural cross-correlation for radio astronomy." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11427.

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Includes abstract.<br>Includes bibliographical references (leaves 56-62).<br>Correlation engines are essential elements of most signal processing systems. Areas of applicability include image processing, speech synthesis and analysis, high energy physics, wireless and mobile communication systems, spread spectrum communication systems and even prosthetics. Finding cost effective and computationally less intensive engines is the thrust of most research. Neural networks have also been used as aids in making complex tasks relatively easy to process.
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Manley, Jason Ryan. "A scalable packetised radio astronomy imager." Doctoral thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15573.

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Includes bibliographical references<br>Modern radio astronomy telescopes the world over require digital back-ends. The complexity of these systems depends on many site-specific factors, including the number of antennas, beams and frequency channels and the bandwidth to be processed. With the increasing popularity for ever larger interferometric arrays, the processing requirements for these back-ends have increased significantly. While the techniques for building these back-ends are well understood, every installation typically still takes many years to develop as the instruments use highly spe
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Bock, Douglas Carl-Johan. "Wide Field Aperture Synthesis Radio Astronomy." Thesis, The University of Sydney, 1997. http://hdl.handle.net/2123/377.

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Abstract (sommario):
This thesis is focussed on the Molonglo Observatory Synthesis Telescope (MOST), reporting on two primary areas of investigation. Firstly, it describes the recent upgrade of the MOST to perform an imaging survey of the southern sky. Secondly, it presents a MOST survey of the Vela supernova remnant and follow-up multiwavelength studies. The MOST Wide Field upgrade is the most significant instrumental upgrade of the telescope since observations began in 1981. It has made possible the nightly observation of fields with area ~5 square degrees, while retaining the operating frequency of
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Carozzi, Tobia. "Radio waves in the ionosphere : Propagation, generation and detection." Doctoral thesis, Uppsala universitet, Institutionen för astronomi och rymdfysik, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1184.

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We discuss various topics concerning the propagation, generation, and detec-tionof high-frequency (HF) radio waves in the Earth's ionosphere. With re-gardsto propagation, we derive a full wave Hamiltonian and a polarization evo-lutionequation for electromagnetic waves in a cold, stratified magnetoplasma.With regards to generation, we will be concerned with three experiments con-ducted at the ionosphere- radio wave interaction research facilities at Sura, Rus-siaand Tromsø, Norway. These facilities operate high power HF transmittersthat can inject large amplitude electromagnetic waves into the
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Libri sul tema "Radio astronomy"

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Lauterbach, Thomas. Radio Astronomy. Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-36035-1.

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Kraus, John Daniel. Radio astronomy. 2nd ed. Edited by Tiuri Martti 1925-, Räisänen Antti V, and Carr Thomas D. Cygnus-Quasar Books, 1986.

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Nourse, Alan Edward. Radio Astronomy. F. Watts, 1989.

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Sofue, Yoshiaki. Galactic Radio Astronomy. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3445-9.

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National Research Council (U.S.). Committee on Radio Frequencies., ed. Radio astronomy observatories. National Academy Press, 1989.

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Leeuwen, Joeri van. Radio pulsars. s.n.], 2004.

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Rohlfs, Kristen. Tools of radio astronomy. Springer-Verlag, 1986.

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Frequencies, European Science Foundation Committee on Radio Astronomy. Handbook for Radio Astronomy. Netherlands Foundation for Research in Astronomy., 1995.

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Wilson, Thomas L., and Susanne Hüttemeister. Tools of Radio Astronomy. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-57001-8.

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Rohlfs, Kristen. Tools of Radio Astronomy. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-662-02465-2.

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Capitoli di libri sul tema "Radio astronomy"

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McNally, Derek. "Radio Astronomy (Radio Astronomie)." In Reports on Astronomy. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3364-7_28.

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Baldwin, J. E., P. G. Mezger, A. Barrett, et al. "Radio Astronomy." In Reports on Astronomy. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2981-4_30.

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Zarka, Philippe. "Radio Astronomy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_1339.

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McGillivray, Donald. "Radio Astronomy." In Physics and Astronomy. Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09123-2_10.

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Gallaway, Mark. "Radio Astronomy." In Undergraduate Lecture Notes in Physics. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23377-2_14.

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Zarka, Philippe. "Radio Astronomy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_1339.

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Bergeron, Jacqueline. "Radio Astronomy." In Reports on Astronomy. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1100-3_30.

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West, Richard M. "Radio Astronomy." In Reports on Astronomy. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5392-5_30.

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Leverington, David. "Radio Astronomy." In A History of Astronomy. Springer London, 1995. http://dx.doi.org/10.1007/978-1-4471-2124-4_15.

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Zarka, Philippe. "Radio Astronomy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_1339.

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Atti di convegni sul tema "Radio astronomy"

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Kus, Andrzej J. "Radio Astronomy in Poland." In EMC_2000_Wroclaw. IEEE, 2000. https://doi.org/10.23919/emc.2000.10842057.

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Spoelstra, T. A. Th. "Radio Astronomy and WARC 92." In EMC_1990_Wroclaw. IEEE, 1990. https://doi.org/10.23919/emc.1990.10833141.

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Munira, Sirajum, Dola Saha, Gregory Hellbourg, and Aveek Dutta. "Dynamic Protection Zone for Radio Astronomy." In 2024 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN). IEEE, 2024. http://dx.doi.org/10.1109/dyspan60163.2024.10632855.

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Spoelstra, T. A. Th. "Reduction of Interference in Radio Astronomy." In EMC_1994_Wroclaw. IEEE, 1994. https://doi.org/10.23919/emc.1994.10833545.

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Cohen, R. J. "The Glonass-Radio Astronomy Joint Experiment." In EMC_1994_Wroclaw. IEEE, 1994. https://doi.org/10.23919/emc.1994.10833546.

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Gorgolewski, Stanislaw. "Radio Astronomy and Frequency Protection Problem." In EMC_1988_Wroclaw. IEEE, 1988. https://doi.org/10.23919/emc.1988.10832854.

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Winnberg, Anders. "New Radio Windows: MM-Wave Astronomy." In EMC_1998_Wroclaw. IEEE, 1998. https://doi.org/10.23919/emc.1998.10834678.

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van Driel, W. "“New” Radio Astronomy and a New Generation of Radio Telescopes." In 2004_Wroclaw. IEEE, 2004. https://doi.org/10.23919/emc.2004.10844141.

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Kahlmann, H. C. "The ESF Committee on Radio Astronomy Frequencies." In EMC_1994_Wroclaw. IEEE, 1994. https://doi.org/10.23919/emc.1994.10833453.

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Llosa, Sylvia, Cole Forrester, Georgiana Weihe, Oren Collaco, and Kevin Gifford. "Improved Radio Astronomy Interference Characterization Using DevOps." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10907072.

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Rapporti di organizzazioni sul tema "Radio astronomy"

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Kassim, Namir E., T. J. Lazio, and William C. Erickson. Opening a New Window on the Universe: High-Resolution, Long-Wavelength Radio Astronomy. Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada408473.

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Eshbaugh, J. V. Interface Control Document Between the Radio Astronomy Pointing Computer (PC) and the HUSIR Antenna Control Unit (ACU). Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada533347.

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Francesco, Petruccione,, Gastrow, Michael, Hadzic, Senka, et al. Evaluation of Alternative Telecommunication Technologies for the Karoo Central Astronomy Advantage Area. Academy of Science of South Africa (ASSAf), 2021. http://dx.doi.org/10.17159/assaf.2021/0073.

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The National Research Foundation (NRF) requested the Academy of Science of South Africa (ASSAf), on behalf of South African Radio Astronomy Observatory (SARAO) and the Square Kilometre Array (SKA), to undertake an independent and objective evaluation of potential alternative telecommunication technologies for the areas of the Karoo Central Astronomy Advantage Areas (KCAAA). The study encompasses regulatory, public sphere, and technical dimensions to explore options for maintaining the functionality of the telescope while, at the same time, delivering appropriate connectivity solutions for loca
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BACCELLI, François, Sébastien CANDEL, Guy PERRIN, and Jean-Loup PUGET. Large Satellite Constellations: Challenges and Impact. Académie des sciences, 2024. http://dx.doi.org/10.62686/3.

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The New Space Age (NewSpace) marks the advent of a new era in the use of space, characterized by the opening of space to new players, the use of new space technologies, new functionalities for satellites in orbit, and the development of satellite constellations, mainly in the fields of communications and Earth observation. These developments are underpinned by first-rate scientific and technological advances, as well as considerable public and private investment, in particular in the USA, China and, to a lesser extent, Europe. Fleets of small low- and medium-orbit satellites are replacing or c
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