ITU-R S 1503-3-2018 Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems o2 of.pdf
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1、 Recommendation ITU-R S.1503-3 (01/2018) Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems or networks with limits contained in Article 22 of the Radio Regulations S Series Fixed-satellite se
2、rvice ii Rec. ITU-R S.1503-3 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range
3、on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R po
4、licy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guideline
5、s for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Recommendations (Also available online at http:/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival an
6、d play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applicatio
7、ns and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG Satellite news gathering TF Time signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English u
8、nder the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2018 ITU 2018 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R S.1503-3 1 RECOMMENDATION ITU-R S.1503-3 Functional description t
9、o be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems or networks with limits contained in Article 22 of the Radio Regulations (2000-2005-2013-2018) Scope This Recommendation provides a functional description of the sof
10、tware for use by the Radiocommunication Bureau of ITU to conduct examination of non-GSO FSS system notifications for their compliance with the validation limits specified in the Radio Regulations. Keywords epfd; non-GSO; methodology Abbreviations/Glossary Alpha angle (): the minimum angle at the GSO
11、 earth station between the line to the non-GSO satellite and the lines to the GSO arc. e.i.r.p. mask: equivalent isotropic radiated power mask used to define the emissions of the non-GSO earth station in the epfd(up) calculation or the emissions of the non-GSO satellite for the epfd(IS) calculation.
12、 epfd: equivalent power flux-density, as defined in RR No. 22.5C.1, of which there are three cases to consider: epfd(down): emissions from the non-GSO satellite system into a GSO satellite earth station; epfd(up): emissions from the non-GSO earth station into a GSO satellite; epfd(IS): inter-satelli
13、te emissions from the non-GSO satellite system into a GSO satellite system. pfd mask: power flux-density mask used to define the emissions of the non-GSO satellite in the epfd(down) calculation. X angle (X): the minimum angle at the non-GSO satellite between the line from the GSO earth station and t
14、he lines to the GSO arc. WCG: Worst Case Geometry, the location of the GSO earth station and GSO satellite that analysis suggests would cause the highest single entry epfd values for given inputs. Related ITU Recommendations, Reports Recommendation ITU-R BO.1443-3 Reference BSS earth station antenna
15、 patterns for use in interference assessment involving non-GSO satellites in frequency bands covered by RR Appendix 30 Recommendation ITU-R S.672-4 Satellite antenna radiation pattern for use as a design objective in the fixed-satellite service employing geostationary satellites Recommendation ITU-R
16、 S.1428-1 Reference FSS earth-station radiation patterns for use in interference assessment involving non-GSO satellites in frequency bands between 10.7 GHz and 30 GHz 2 Rec. ITU-R S.1503-3 The ITU Radiocommunication Assembly, considering a) that WRC-2000 adopted, in Article 22 of the Radio Regulati
17、ons (RR), single-entry limits applicable to non-geostationary satellite orbit (non-GSO) fixed-satellite service (FSS) systems in certain parts of the frequency range 10.7-30 GHz to protect geostationary satellite orbit (GSO) networks operating in the same frequency bands from unacceptable interferen
18、ce; b) that these frequency bands are currently used or planned to be used extensively by geostationary-satellite orbit systems (GSO systems); c) that during the examination under Nos. 9.35 and 11.31, the Bureau examines non-GSO FSS systems to ensure their compliance with the single-entry epfd limit
19、s given in Tables 22-1A, 22-1B, 22-1C, 22-1D, 22-1E, 22-2 and 22-3 of Article 22 of the RR; d) that to perform the regulatory examination referred to in considering c), the Radiocommunication Bureau (BR) requires a software tool that permits the calculation of the power levels produced by such syste
20、ms, on the basis of the specific characteristics of each non-GSO FSS system submitted to the Bureau for coordination or notification, as appropriate; e) that GSO FSS and GSO broadcasting-satellite service (BSS) systems have individual characteristics and that interference assessments will be require
21、d for multiple combinations of antenna characteristics, interference levels and probabilities; f) that designers of satellite networks (non-GSO FSS, GSO FSS and GSO BSS) require knowledge of the basis on which the BR will make such checks; g) that such tools may be already developed or under develop
22、ment and may be offered to the BR, recommends that the functional description specified in Annex 1 should be used to develop software tools calculating the power levels produced by non-GSO FSS systems and the compliance of these levels with the limits contained in Tables 22-1A, 22-1B, 22-1C, 22-1D,
23、22-1E, 22-2 and 22-3 of Article 22 of the RR. Rec. ITU-R S.1503-3 3 Annex 1 Functional description of software for use by the BR in checking compliance of non-GSO FSS systems with epfd limits TABLE OF CONTENTS Page PART A Fundamental constraints and basic assumptions 3 PART B Input parameters . 9 PA
24、RT C Generation of pfd/e.i.r.p. masks . 24 PART D Software for the examination of non-GSO filings . 43 PART E Testing of the reliability of the software outputs . 131 PART F Software implementing this Recommendation. 132 PART A Fundamental constraints and basic assumptions A1 General A1.1 Purpose Th
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