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ITU-R R23-WP3J

Propagation Fundamentals

Results:159 total items.
Result page:  1 - 2 - 3 - 4  - Next Next
Contributions  Documents / Contributions
 
Number 
Title Source AI/Question
Date
[ 159 ]  
 
Additional information on the summary of conclusions of the 32nd meeting of the Radiocommunication Advisory Group for the attention of all ITU-R Study Groups and Working Parties     Director, BR     2025-05-23
[ 158 ]  
 
Liaison statement to ITU-T Study Groups 15 Question 6/15 (Copy to ITU-R Working Parties 1A, 3J, 3M and Study Group 5) - Free-space optics systems related aspects for G.fso     WP 5C     2025-05-22
[ 157 ]  
 
Liaison statement to ITU-R Study Groups 1 and 3 (copy to ITU-R Working Parties 1C and 3J, ITU-T Study Group 5) - Request of feedback on terms and definitions proposed by ITU-T Study Group 5 and submitted to the CCT for validation     CCT     2025-05-21
[ 156 ]  
 
Improvement of the Handbook on the ionosphere and its effects on radio-wave propagation     Brazil     2025-05-14
[ 155 ]  
 
Proposed revision to Recommendation ITU-R P.837-7 - Characteristics of precipitation for propagation modelling     France     2025-05-14
[ 154 ]  
 
Working document towards a preliminary draft revision to Recommendation ITU-R P.1853-2 - Time series synthesis of tropospheric impairments     France     2025-05-14
[ 153 ]  
 
Proposed revision of Recommendation ITU-R P.2146-0 - Sea surface bistatic scattering     Institute of Electrical and Electronics Engineers, Inc. (IEEE)     2025-05-14
[ 152 ]  
 
Proposed editorial amendment of Recommendation ITU-R P.1407-8 - Multipath propagation and parameterization of its characteristics     United Kingdom     2025-05-14
[ 151 ]  
 
Discussion document for working document towards a preliminary draft new Recommendation - Guidelines for topographic classification optimized for machine learning-based radio-wave propagation prediction     Korea (Rep. of)   Q236/3   2025-05-14
[ 150 ]  
 
Proposed revision to Recommendation ITU-R P.1407-8 - A method for synthesizing omnidirectional antenna characteristics using power angle delay profiles derived from directional antennas     Korea (Rep. of)     2025-05-14
[ 149 ]  
 
Comparison of the height of the 0°C isotherm with several ERA5 cloud parameters     Spain     2025-05-14
[ 148 ]  
 
Influence of DSD fluctuations on the cumulative distributions of rain attenuation at millimetre waves and sub-THz     Spain     2025-05-14
[ 147 ]  
 
Proposed revision to Recommendation ITU-R P.1409-3 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 0.7 GHz     Japan     2025-05-14
[ 146 ]  
 
Discussion document for human shielding loss model of Recommendation ITU-R P.1409-3 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 0.7 GHz     Japan     2025-05-14
[ 145 ]  
 
Proposed revision to working document towards a preliminary draft new Report ITU-R P.[MATERIAL_MEASUREMENT]     Japan     2025-05-14
[ 144 ]  
 
Proposed draft new ITU-R Report - Best practices for evaluating the generalization of machine learning-driven radio propagation models     Canada   Q236/3   2025-05-13
[ 143 ]  
 
A testbed for propagation measurements in the sub-terahertz spectrum - Information Document     Canada   Q211-8/3, Q201-7/3   2025-05-13
[ 142 ]  
 
Proposed liaison statement from Working Parties 3J, 3K, and 3M to Working Party 5B (copy to Working Parties 4A, 4C, 5A, 5C, 7C and 7D for information) - Propagation information to support studies under WRC-27 agenda item 1.8     Germany , Switzerland   AI1.8   2025-05-13
[ 141 ]  
 
Preliminary draft new fascicle ITU-R 3J/FAS/[LUNAR_RF_PROPAGATION] - Fascicle on predicting lunar RF propagation characteristics     United States   AI1.15   2025-05-13
[ 140 ]  
 
Discussion document on data results from dual channel troposcatter measurement system utilized in Colorado, USA from February 2024 to January 2025     United States     2025-05-13
[ 139 ]  
 
Working document towards a preliminary draft new Report ITU-R P.[STOCHASTIC_CLUTTER] - Report on radio-wave propagation in stochastic cluttered media     United States     2025-05-13
[ 138 ]  
 
Preliminary draft new Recommendation ITU-R P.[LUNAR] - Propagation characteristics and prediction methods required for lunar radiocommunication     United States     2025-05-13
[ 137 ]  
 
Preliminary draft new Recommendation ITU-R P.[LAND_BISTATIC_SCATTER] - Land surface bistatic scattering coefficient prediction     United States     2025-05-13
[ 136 ]  
 
Working document toward a preliminary draft revision of Recommendation ITU-R P.2146 - Sea surface bistatic scattering     United States     2025-05-13
[ 135 ]  
 
Proposed supplement to Recommendation ITU-R P.1144-12 - The relationship between the ITU-R P-series recommendations     China     2025-05-13
[ 134 ]  
 
Working document towards a preliminary draft revision of Recommendation ITU-R P.2040-3 - Update proposal of calculation examples for plane wave transmission for a single-layer slab     China     2025-05-13
[ 133 ]  
 
Proposed supplement to Recommendation ITU-R P.834-9 - Minimum trapping frequency of evaporation duct     China     2025-05-13
[ 132 ]  
 
Proposed supplement to Recommendation ITU-R P.837-7 - Reconstruction of 1-min cumulated rainfall time series based on t-mins cumulated rainfall rate     China     2025-05-13
[ 131 ]  
 
Proposed supplement of draft modification to Recommendation ITU-R P.1621-2 - Propagation data required for the design of Earth-space systems operating between 20 THz and 375 THz     China     2025-05-13
[ 130 ]  
 
Proposed modification of Recommendation ITU-R P.525-5 - Application of the free-space attenuation calculation     China     2025-05-13
[ 129 ]  
 
Proposed integral of Recommendations ITU-R P.581-3 and ITU-R P.841-7 - The concept of "worst month" and its conversion from annual statistics     China     2025-05-13
[ 128 ]  
 
Recommendation ITU-R P.834 - Beam spreading loss     Russian Federation     2025-05-12
[ 127 ]  
 
Reply liaison statement to Working Party 7D - (copy to Working Parties 3J, 3M, 4A, 5A, 5B and 5D for information) - Technical information to support studies under WRC-27 agenda item 1.16     WP 4C   AI1.16   2025-05-12
[ 126 ]  
 
Correspondence Group 3J-17 activity Report     Co-Chairs, CG 3J-17     2025-05-05
[ 125 ]  
 
Report on the activities of Correspondence Group 3J-3K-3M-14 - Issues relating to the HAPS propagation model     Chair, CG 3J-3K-3M-14     2025-05-05
[ 124 ]  
 
Activity Report of Correspondence Group 3J-3K-3L-3M-27 - Application of machine learning for propagation studies     Chair, CG 3J-3K-3L-3M-27     2025-05-04
[ 123 ]  
 
Simulations and model proposal of LoS probabilities     Telefon AB - LM Ericsson     2025-04-24
[ 122 ]  
 
Issues with creating clutter loss models based on ray tracing - A comparison of measurements and ray tracing     Telefon AB - LM Ericsson     2025-04-24
[ 121 ]  
 
Liaison statement on satellite to satellite free space optical communication     ITU-T SG15     2025-04-15
[ 120 ]  
(Rev.1) 
Liaison statement on free-space optics systems related aspects for G.fso     ITU-T SG15     2025-04-11
[ 119 ]  
 
Liaison statement to Working Party 3J (copy to Working Parties 3M and 5B for information) - Application of Recommendation ITU-R P.2146 in studies under WRC-27 agenda item 1.19     WP 7C   AI1.19   2025-04-08
[ 118 ]  
 
Liaison statement to Working Party 3M (copy to Working Party 3J for information) Clutter loss models applicable to studies under WRC-27 agenda item 1.19     WP 7C   AI1.19   2025-04-08
[ 117 ]  
 
Liaison statement to ITU-R Working Parties 3J, 4A, 4C, 5A, 5B, 5C, 5D, 7A, 7C and 7D - Report on progress of activities relating to WRC-27 agenda item 1.15     WP 7B   AI1.15   2025-04-01
[ 116 ]  
+Ann.1-23 
Report of the meeting of Working Party 3J (Geneva, 17-21 February 2025)     Chair, WP 3J     2025-02-17
[ 115 ]  
 
Final list of participants WP 3J (Geneva, 17-21 February 2025)     Director, BR     2025-02-17
[ 114 ]  
 
List of documents issued - (Documents 3J/67 - 3J/114)     BR, Study Groups Department     2025-02-17
[ 113 ]  
 
Liaison statement on the definitions of the terms from ITU-T Study Group 5     SCV     2025-02-14
[ 112 ]  
 
Liaison statement to ITU-R Study Group 3 (copy to ITU-T Study Group 5) - Definitions: List of published English terms for validation sent to the CCT for comment - "antenna-related terms"     CCT     2025-02-13
[ 111 ]  
 
Proposed revision to Recommendation ITU-R P.837-7 - Characteristics of precipitation for propagation modelling     France     2025-02-05
[ 110 ]  
 
On the use of Recommendation ITU-R P.837-7 to predict monthly rainfall rate and rain attenuation statistics     France     2025-02-05
Results:159 total items.
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