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Fundamentos de la Propagación

Resultados :232 documentos
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Contribuciones  Documents / Contributions
 
Número 
Título Origen AI/Cuestión
Fecha
[ 83 ]  
 
Draft revision to ITU-R P. 2040-2 - complex relative permittivity of building materials     United States of America     2022-05-16
[ 82 ]  
 
Adding symbol to the ninth ITU Radio Regulations band and revising Recommendation ITU-R V.431-8 - Nomenclature: Number 12, THF 300 to 3 000 GHz, Decimillimetric waves     ATDI   Q228/3   2022-04-06
[ 81 ]  
 
Working document towards a preliminary draft revision to Recommendation ITU-R P.839-4 - Rain height model for prediction methods     France     2022-03-21
[ 80 ]  
 
Working document towards a preliminary draft revision to Recommendation ITU-R P.678-3 - Characterization of the variability of propagation phenomena and estimation of the risk associated with propagation margin     France     2022-03-21
[ 79 ]  
 
Preliminary draft revision to Recommendation ITU-R P.1057-6 - Probability distributions relevant to radiowave propagation modelling     France     2022-03-21
[ 78 ]  
 
Proposed editorial amendment of Recommendation ITU-R P.676-12 - Attenuation by atmospheric gases and related effects - Annex 2: Approximate estimation of gaseous attenuation in the frequency range 1-350 GHz     Canada     2021-06-14
[ 77 ]  
 
Supplement on attenuation and reflection characteristics of clothing materials - Technology trends of active services in the frequency range 275-3 000 GH     National Institute of Information and Communications Technology (NICT)     2021-06-14
[ 76 ]  
 
Variability of rain specific attenuation evaluated from experimental drop size distributions     Spain     2021-06-14
[ 75 ]  
 
Draft reply liaison statement to Working Party 5D - WRC-23 agenda item 1.4     Japan   AI1.4   2021-06-14
[ 74 ]  
 
Discussion document - Site specific model of building entry loss - Prediction of building entry loss     Japan     2021-06-14
[ 73 ]  
 
Supports document for Annex 18 to Document 3M/180 - Proposed draft revision of Recommendation ITU-R P.2108-0 - Prediction of clutter loss     N/A (no se aplica)     2021-06-14
[ 72 ]  
 
[WORKING DOCUMENT TOWARDS A] preliminary draft revision of Recommendation ITU-R P.1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz     Japan     2021-06-14
[ 71 ]  
 
[DRAFT] reply liaison to Working Party 7C - Earth surface bistatic scattering coefficient prediction     Institute of Electrical and Electronics Engineers, Inc.     2021-06-14
[ 70 ]  
 
Proposals on [WORKING DOCUMENT TOWARDS A] preliminary draft revision of Recommendation ITU-R P/1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz     Russian Federation     2021-06-10
[ 68 ]  
 
Submission of ERA5 derived global database of 10 metre wind speed     Italy     2021-06-10
[ 67 ]  
 
Working document towards a preliminary draft revision to Recommendation ITU-R P.840-8     France     2021-06-09
[ 66 ]  
 
Submission of rain statistics for DBSG-3     United Kingdom of Great Britain and Northern Ireland     2021-06-09
[ 65 ]  
 
Draft revision to Recommendation ITU-R P.1407-7 - Multipath propagation and parameterisation of its characteristics Estimation of Rice factor for fading models     United Kingdom of Great Britain and Northern Ireland     2021-06-09
[ 64 ]  
 
Discussion document - Calibration of terrain loss measurement between NGSO satellite and Earth station     China (People's Republic of)     2021-06-09
[ 63 ]  
 
Proposed modification to Recommendation ITU-R P.676-12 - Attenuation by atmospheric gases     China (People's Republic of)     2021-06-09
[ 62 ]  
 
Propsal to amend the Recommendation UIT-R P.2040-1     Spain     2021-06-11
[ 61 ]  
 
Analysis of rain attenuation models and proposed modifications to Recommendation ITU-R P.618-13     China (People's Republic of)     2021-06-09
[ 60 ]  
 
Proposed modification to Recommendation ITU-R P.1622: Prediction methods required for the design of Earth space systems operating between 20 THz and 375 THz     China (People's Republic of)     2021-06-09
[ 59 ]  
 
Proposed modification to Recommendation ITU-R P.453-14 - Global digital maps of surface and elevated ducts     China (People's Republic of)     2021-06-09
[ 58 ]  
 
Proposed draft modification to Recommendation IT-R P.834-9 - Excess radio path length and its variations     China (People's Republic of)     2021-06-09
[ 57 ]  
 
Proposed modification to Recommendation ITU-R P.834-9 - The refraction correction of elevation angle for the mean annual global reference atmosphere     China (People's Republic of)     2021-06-09
[ 56 ]  
 
Proposed modification to Recommendation ITU-R P.841-6 and P.581-2 - Conversion of annual statistics to worst-month statistics for two statistical methods     China (People's Republic of)     2021-06-09
[ 55 ]  
 
Discussion document regarding Recommendation ITU-R P.2109 - Analysis of Building Entry Loss Model from ITU-R P.2109-1     United States of America     2021-06-07
[ 54 ]  
 
Proposed editorial amendment of Recommendation ITU-R P.676-12 - A ttenuation by atmospheric gases and relaed efects - Downwelling and upwelling microwave brightness temperature     United States of America     2021-06-07
[ 53 ]  
 
Working document towards apreliminary draft revision to ITU-R P.1057-6 - Statistics of normally distributes random variables     United States of America     2021-06-07
[ 52 ]  
 
Draft editorial amendment of Recommendation ITU-R P.836-6 - Water vapour: surface density and total columnar content     Luxembourg     2021-06-02
[ 51 ]  
 
Terrain loss measurement between non-GSO satellites and Earth stations and model proposals     China (People's Republic of)     2021-04-16
[ 50 ]  
 
Draft reply liaison statement to ITU-R Working Party 7C - Earth surface bistatic scattering coefficient prediction     European Space Agency     2021-04-19
[ 49 ]  
 
Draft reply liaison statement to Working Party 5D - WRC-23 agenda item 1.4     Japan   AI1.4   2021-04-19
[ 48 ]  
 
Proposed draft revision of Recommendation ITU-R P.1410-5 - Propagation data and prediction methods required for the design of terrestrial broadband radio access systems operating in a frequency range from 3 to 60 GHz     Japan     2021-04-19
[ 47 ]  
 
Discussion documents- Measurement result (or plan) for site specific model of building entry loss - Prediction of building entry loss     Japan     2021-04-19
[ 46 ]  
 
Proposed draft revision of Recommendation ITU-R P.833-9 - Attenuation in vegetation     Japan     2021-04-19
[ 45 ]  
 
Proposed draft revision of Recommendation ITU-R P.2108 - Prediction of clutter loss     Japan     2021-04-19
[ 44 ]  
 
[WORKING DOCUMENT TOWARDS A] preliminary draft revision of Recommendation ITU-R P.1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz     Japan     2021-04-19
[ 43 ]  
 
Wind-related data products to be used in conjunction with the sea surface reflection model     Institute of Electrical and Electronics Engineers, Inc.     2021-04-19
[ 42 ]  
 
Proposed modifications to working document towards a preliminary draft revision of Recommendation ITU-R P.1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz     Russian Federation     2021-04-15
[ 41 ]  
 
Attenuation of atmospheric gases cosecant elevation angle dependence of slant attenuation     Russian Federation     2021-04-15
[ 40 ]  
 
Proposed draft revision to ITU-R P.833     United States of America     2021-04-12
[ 39 ]  
 
Python implementation of an ITU-R propagation framework     European Space Agency , Austria , Belgium , Czech Technical University in Prague, Faculty of Electrical Engineering     2020-08-03
[ 38 ]  
 
Draft [EDITORIAL] amendment of Recommendation ITU-R P.834-9 Section 6 - Effects of tropospheric refraction on radiowave propagation: The tropospheric excess path length for Earth-space paths     European Space Agency     2020-08-03
[ 37 ]  
 
Discussion document towards a proposed draft revision of Recommendation ITU-R P.833-9     France , Japan     2020-08-03
[ 36 ]  
 
Submission of rainfall rate statistics for DBSG-3 update for 20 sites in Ireland     France     2020-08-03
[ 35 ]  
 
Working document towards a preliminary draft revision to Recommendation ITU-R P.837-7     France     2020-08-03
[ 34 ]  
 
Discussion document towards a proposed draft revision to Recommendation ITU-R P.1407-7     France     2020-08-03
[ 33 ]  
 
[DRAFT] support document for proposed draft revision of Recommendation ITU-R P.1409-1 (Annex 13 to Working Party 3M Chairman's Report) - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz     Japan     2020-08-03
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