BR Document Search
 

Search
 
 

 

 

Astronomical use of frequency band 50-350 THz and coexistence with other applications222854ITU 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/_layouts/15/WopiFrame.aspx?sourcedoc={a49c5caa-4ed0-417c-bfeb-fe114b3b25e1}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={a49c5caa-4ed0-417c-bfeb-fe114b3b25e1}&action=imagepreviewhttps://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}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2163/R-REP-RA.2163-2009/R-REP-RA.2163-2009-MSW-E.docx?d=wa49c5caa4ed0417cbfebfe114b3b25e1~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Sharing between the radio astronomy service and active services in the frequency range 275-3 000 GHz222856ITU-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/_layouts/15/WopiFrame.aspx?sourcedoc={ec100bba-7343-4eac-b643-8429a02699bf}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={ec100bba-7343-4eac-b643-8429a02699bf}&action=imagepreviewhttps://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}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2189/R-REP-RA.2189-1-2018/R-REP-RA.2189-1-2018-MSW-E.docx?d=wec100bba73434eacb6438429a02699bf~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Power flux-density and e.i.r.p. levels potentially damaging to radio astronomy receivers222858ITU 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/_layouts/15/WopiFrame.aspx?sourcedoc={0cef49cc-b4c3-4dff-bacf-34b339d0190d}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={0cef49cc-b4c3-4dff-bacf-34b339d0190d}&action=imagepreviewhttps://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}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2188/R-REP-RA.2188-2010/R-REP-RA.2188-2010-MSW-E.docx?d=w0cef49ccb4c34dffbacf34b339d0190d~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
The transition to digital television and its impact on the unprotected use by the radio astronomy service of bands used for terrestrial television broadcasting222860ITU-T Study Group un;Fukumuro, Kazutsugu - Privileged AccountSaved by JK-106306 at 10:34:24 on 03.07.20091/6/2011 2:00:00 PM1/6/2011 2:00:00 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/_layouts/15/WopiFrame.aspx?sourcedoc={9b093a58-342a-45b8-ad59-6215760a7669}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={9b093a58-342a-45b8-ad59-6215760a7669}&action=imagepreviewhttps://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2195/R-REP-RA.2195-2010Policy on Intellectual Property Right (IPR);1 Introduction;1 Australia;1.1 Date of transition;1.2 Frequency allocations and assignments;1.3 Transmission spectrum mask and the maximum permitted power level of spurious emission or unwanted emission;1.4 Radio astronomy observations in frequency bands allocated to terrestrial broadcasting;2 Brazil The Brazilian DTT standard (SBTVD-T) is published by the Brazilian Technical Standards Association (ABNT) and can be freely downloaded from the following link: http://www.forumsbtvd.org.br/materias.asp?id=112. ;2.1 Brazilian DTT standard;2.3 Frequency allocations and assignments;2.4 Current situation of digital terrestrial television deployment in Brazil;3 Japan Technical characteristic of the terrestrial digital television broadcasting in Japan was taken from the Association of Radio Industries and Businesses (ARIB) STD-B31 Version 1.6 at http://www.arib.or.jp/english/html/overview/doc/6-STD-B31v1_6-E2.pdf. It should be noted that this version is now under revision, and revised information has been incorporated in this contribution. ;3.1 Date of transition;3.2 Frequency allocations and assignments;3.3 Transmission spectrum mask and the maximum permitted power level of spurious emission or unwanted emission The above specifications are accompanied with transitional measures (supplementary provisions to the Radio Equipment Rules – Ministerial Ordinance No. 119 issued by the MIC (Ministry of Internal affairs and Communications) in 2005). ;3.4 Radio astronomy station in the frequency range between 470 and 710 MHz;4 United States of America;4.1 Date of transition;4.2 Changes to frequency allocations;4.3 Changes to allotments and assignments0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{9B093A58-342A-45B8-AD59-6215760A7669}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2195/R-REP-RA.2195-2010/R-REP-RA.2195-2010-MSW-E.docx?d=w9b093a58342a45b8ad596215760a7669~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Techniques for mitigation of radio frequency interference in radio astronomy222862Delaroque, 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/_layouts/15/WopiFrame.aspx?sourcedoc={2074ba3b-44c7-4229-86b6-fd4b2cc5bdbd}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={2074ba3b-44c7-4229-86b6-fd4b2cc5bdbd}&action=imagepreviewhttps://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}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2126/R-REP-RA.2126-1-2013/R-REP-RA.2126-1-2013-MSW-E.docx?d=w2074ba3b44c7422986b6fd4b2cc5bdbd~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.769222864POOL;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/_layouts/15/WopiFrame.aspx?sourcedoc={7372ddac-4f80-42ab-b858-d9b824308f41}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={7372ddac-4f80-42ab-b858-d9b824308f41}&action=imagepreviewhttps://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}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2131/R-REP-RA.2131-2009/R-REP-RA.2131-2009-MSW-E.doc?d=w7372ddac4f8042abb858d9b824308f41~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Radio observations of pulsars for precision timekeeping222867Gachet, 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/_layouts/15/WopiFrame.aspx?sourcedoc={408ba2a6-efbc-418e-9156-12ddb45ac4cd}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={408ba2a6-efbc-418e-9156-12ddb45ac4cd}&action=imagepreviewhttps://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}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2099/R-REP-RA.2099-1-2013/R-REP-RA.2099-1-2013-MSW-E.docx?d=w408ba2a6efbc418e915612ddb45ac4cd~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Determination of the interference potential, and its possible reduction by mitigation techniques, between earth stations in the fixed-satellite service operating with non-geostationary satellites and stations in the fixed service in the 18/19 GHz band222872ITU Radiocommunication Bureau (BR);Fukumuro, Kazutsugu - Privileged AccountSaisie + Recup.: 23.11.2004/NM Corr. BAT: 10.01.2005/NM3/18/2005 8:50:00 AM3/18/2005 8:50:00 AM(Questions ITU-R 237/4 and ITU-R 206/9 Frequency bands have been allocated and identified for use by GSO and non-GSO FSS systems in bands shared on a primary basis with the FS. WRC STS_ListItem_10001https://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={a9645132-2681-47bf-82da-9e5e5c5857f7}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={a9645132-2681-47bf-82da-9e5e5c5857f7}&action=imagepreviewhttps://extranet.itu.int/brdocsearch/R-REP/R-REP-SF/R-REP-SF.2046/R-REP-SF.2046-20050https://extranet.itu.int/brdocsearchdocFalsedochttps://extranet.itu.int/brdocsearch{A9645132-2681-47BF-82DA-9E5E5C5857F7}https://extranet.itu.int/brdocsearch/R-REP/R-REP-SF/R-REP-SF.2046/R-REP-SF.2046-2005/R-REP-SF.2046-2005-MSW-E.doc?d=wa9645132268147bf82da9e5e5c5857f7~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Threshold interference levels for the protection of space-based radio astronomy observations222924Gachet, Christelle;System Account5/31/2017 3:19:00 PM5/31/2017 3:19:00 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/_layouts/15/WopiFrame.aspx?sourcedoc={4262d9ab-7f2c-42c1-938e-1a0dba5b7136}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={4262d9ab-7f2c-42c1-938e-1a0dba5b7136}&action=imagepreviewhttps://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2403/R-REP-RA.2403-2017Policy on Intellectual Property Right (IPR);1 Introduction;2 Sensitivity of radio astronomy observations in space;2.1 General considerations and assumptions used in the calculation of interference levels;2.2 Special cases;COLUMN DESCRIPTIONS FOR TABLES 1 AND 2;3 Summary0https://extranet.itu.int/brdocsearchdocxFalsedocxhttps://extranet.itu.int/brdocsearch{4262D9AB-7F2C-42C1-938E-1A0DBA5B7136}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2403/R-REP-RA.2403-2017/R-REP-RA.2403-2017-MSW-E.docx?d=w4262d9ab7f2c42c1938e1a0dba5b7136~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535
Parameters needed for the registration of distributed radio astronomy systems222926ITU-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/_layouts/15/WopiFrame.aspx?sourcedoc={20526316-d3b4-42a5-8c07-fa30bdcc0d4c}&action=interactivepreviewhttps://extranet.itu.int/brdocsearch/_layouts/15/WopiFrame.aspx?sourcedoc={20526316-d3b4-42a5-8c07-fa30bdcc0d4c}&action=imagepreviewhttps://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}https://extranet.itu.int/brdocsearch/R-REP/R-REP-RA/R-REP-RA.2428/R-REP-RA.2428-2018/R-REP-RA.2428-2018-MSW-E.docx?d=w20526316d3b442a58c07fa30bdcc0d4c~sitecollection/_catalogs/masterpage/Display Templates/Search/ITURecItemWord.js3535

~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js
~sitecollection/_catalogs/masterpage/Display Templates/Search/Item_Default.js