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Characteristics of radio quiet zones252077Delaroque, Marceline;Fukumuro, Kazutsugu - Privileged Account10/5/2012 5:47:00 AM10/5/2012 5:47:00 AMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2259/R-REP-RA.2259-2012Policy on Intellectual Property Right (IPR);1 Introduction;1.1 Definition and general requirements of a radio quiet zone;1.2 Overview of the characteristics of radio astronomy instruments in relation to protection from radio-frequency interference;1.3 Overview of the characteristics of the electromagnetic environment;1.4 Goals of creating a RQZ;2 Characteristics of radio astronomy instruments relevant to RQZ;2.1 Geographic considerations;2.2 Frequency range ;2.3 Modes of operation ;2.4 Sensitivity;2.5 Effect of RFI on RAS observations ;2.6 Geometric considerations ;3 The electromagnetic environment;3.1 Intentional radiators;3.2 Unintentional radiators;3.3 Propagation of RFI signals;4 Methods to achieve an RQZ;4.1 Receive-side Methods;4.2 Transmit-side Methods – Managing an RQZ0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{8B927231-B5B9-408C-9124-588CA182B553}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Parameters needed for the registration of distributed radio astronomy systems252079ITU-R;System Account11/8/2018 6:32:00 AM11/8/2018 6:32:00 AMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2428/R-REP-RA.2428-2018Policy on Intellectual Property Right (IPR);1 Introduction;2 Recent experiences of the registration process;2.1 Issues highlighted;3 Conclusion;A.1 Identity of the satellite network, earth station or radioastronomy station;A.2 Date of bringing into use;A.3 Operating administration or agency;A.7 Specific earth station or radio astronomy station site characteristics;B.6 Radio astronomy station antenna characteristics;C.2 Assigned frequency (frequencies);C.3 Assigned frequency band;C.4 Class of station and nature of service;C.5 Receiving system noise temperature;C.13 Characteristics of observations for radio astronomy stations;1 Introduction;2 Description of LOFAR;2.1 LOFAR Core;2.2 LOFAR remote stations;2.3 LOFAR international stations0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{20526316-D3B4-42A5-8C07-FA30BDCC0D4C}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Techniques for mitigation of radio frequency interference in radio astronomy252081Delaroque, Marceline;Fukumuro, Kazutsugu - Privileged Account;System Account11/25/2013 10:42:00 AM11/25/2013 10:42:00 AMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2126/R-REP-RA.2126-1-2013Policy on Intellectual Property Right (IPR);1 Introduction;1.1 Definition and characteristics of radio frequency interference;1.2 Characteristics of astronomical signals;1.3 Dealing with radio frequency interference;1.4 ITU Standards;1.5 Adoption of mitigation methods;1.6 Effective observing techniques;2 RFI mitigation methodology – Layers of mitigation;3 Techniques for mitigating RFI;4 Pro-active measures – Changing the RFI environment;4.1 Regulatory and coordination measures;4.2 Local measures;4.3 Pre-detection & post-detection measures;5 Spatial excision (nulling);5.1 Multi-antenna systems;5.2 Subspace projections;5.3 Post-correlation beamforming;5.4 Reference antennas and reference beams;6 Waveform subtraction0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{2074BA3B-44C7-4229-86B6-FD4B2CC5BDBD}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Sharing between the radio astronomy service and active services in the frequency range 275-3 000 GHz252085ITU-R;System Account11/13/2018 10:21:00 AM11/13/2018 10:21:00 AMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2189/R-REP-RA.2189-1-2018Policy on Intellectual Property Right (IPR);TABLE OF CONTENTS;1 Introduction;2 Atmospheric absorption0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{EC100BBA-7343-4EAC-B643-8429A02699BF}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Compatibility and sharing studies between the radio astronomy service and IMT systems in the frequency bands 608-614 MHz, 1 330-1 400 MHz, 1 400-1 427 MHz, 1 610.6-1 613.8 MHz, 1 660-1 670 MHz, 2 690-2 700 MHz, 4 800-4 990 MHz and 4 990-5 000 MHz252087ITU-T Study Group un;Fukumuro, Kazutsugu - Privileged Account;System AccountSaved by JK-106306 at 10:34:24 on 03.07.20093/13/2015 9:56:00 AM3/13/2015 9:56:00 AMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2332/R-REP-RA.2332-2014Policy on Intellectual Property Right (IPR);1 Introduction and background;2 Technical characteristics;2.1 Radio Astronomy Service characteristics;3 Analysis;3.1 Assumptions;4 Methodology;4.1 Terrain profiles and propagation calculations;4.2 Aggregate emission;5 Summary of results;6 Conclusions0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{9E9194D0-C162-491C-81F4-BF647EF2D381}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Radio observations of pulsars for precision timekeeping252089Gachet, Christelle;Fukumuro, Kazutsugu - Privileged Account;System Account11/25/2013 1:27:00 PM11/25/2013 1:27:00 PMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2099/R-REP-RA.2099-1-2013Policy on Intellectual Property Right (IPR);1 Introduction;2 Preferred frequency bands for high-precision timekeeping observations of radio pulsars;3 Threshold levels of interference;4 The feasibility of frequency sharing with other services;5 The most appropriate pulsars for use in high-precision timekeeping;6 Conclusions0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{408BA2A6-EFBC-418E-9156-12DDB45AC4CD}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Astronomical use of frequency band 50-350 THz and coexistence with other applications252091ITU Radiocommunication Bureau (BR);Fukumuro, Kazutsugu - Privileged AccountSantosbo, 19/02/2010, MSB1063092/22/2010 2:37:00 PM2/22/2010 2:37:00 PMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2163/R-REP-RA.2163-2009Policy on Intellectual Property Right (IPR);1 Introduction;2 Atmospheric transmissivity;3 Noise;4 Interference thresholds;5 Current observing sites;6 Mitigation;7 Conclusion0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{A49C5CAA-4ED0-417C-BFEB-FE114B3B25E1}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Power flux-density and e.i.r.p. levels potentially damaging to radio astronomy receivers252093ITU Radiocommunication Bureau (BR);Fukumuro, Kazutsugu - Privileged AccountSantosbo, 15/11/2010, MSB10630912/1/2010 10:25:00 AM12/1/2010 10:25:00 AMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2188/R-REP-RA.2188-2010Policy on Intellectual Property Right (IPR);1 General explanation of concerns;2 Conversion from empirically-determined, device-specific damaging power input levels to corresponding incident pfd and e.i.r.p.;3 Values of the damaging input power levels Pd and corresponding incident pfd Fd;4 Summary: Threshold levels of the incident power flux-density 0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{0CEF49CC-B4C3-4DFF-BACF-34B339D0190D}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Supplementary information on the detrimental threshold levels of interference to radio astronomy observations in Recommendation ITU-R RA.769252095POOL;Fukumuro, Kazutsugu - Privileged AccountEdition 10.12.08 SP REV - 15.12.08 - HB 1ère épreuve 19.01.09 SP 2ème épreuve: 30.1.09/KJ REV - 30.01.09 - HB REV - 05.05.09 - HB5/6/2009 9:14:00 AM5/6/2009 9:14:00 AMDetrimental threshold levels of interference for radio astronomy were first adopted in 1963 and were given in ex-CCIR Report 224 Ex-CCIR Report 224 was revised repeatedly in STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2131/R-REP-RA.2131-20090https://extranet.itu.int/brdocsearchdocFalsedochttps://extranet.itu.int/brdocsearch{7372DDAC-4F80-42AB-B858-D9B824308F41}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Loudness in Internet delivery of broadcast originated soundtracks252134ITU-R;System Account11/30/2018 6:52:00 AM11/30/2018 6:52:00 AMThe role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services STS_ListItem_10001https://extranet.itu.int/brdocsearch/R-REP/R-REP-BS/R-REP-BS.2434/R-REP-BS.2434-2018Policy on Intellectual Property Right (IPR);1 Introduction;2 Current state of loudness in Internet delivered services;3 Considerations for Internet delivery of broadcast-originated soundtracks;3.1 Variety of reproduction devices and viewing/listening conditions;3.2 Compatibility of broadcast originated soundtracks with Internet delivery;3.3 Codec-based solutions;4 Examples of operational practices for loudness in Internet delivery services of broadcast-originated soundtracks;4.1 Example of Australia;4.2 Example of Japan;4.3 Example of United Kingdom;5 Future work;6 References0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{CCA0FCFD-D9B6-4D11-B43D-DF6AAF4B6775}~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535

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