ITU-R SA 1159-4-2017 Performance criteria for data transmission systems in the Earth exploration-satellite service and meteorological-satellite service.pdf
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1、 Recommendation ITU-R SA.1159-4 (07/2017) Performance criteria for data transmission systems in the Earth exploration-satellite service and meteorological-satellite service SA Series Space applications and meteorology ii Rec. ITU-R SA.1159-4 Foreword The role of the Radiocommunication Sector is to e
2、nsure 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 on the basis of which Recommendations are adopted. The regulatory and policy functions
3、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 policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced
4、 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 Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R
5、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 and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service
6、 (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 applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fi
7、xed 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 under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2017
8、ITU 2017 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R SA.1159-4 1 RECOMMENDATION ITU-R SA.1159-4 Performance criteria for data transmission systems in the Earth exploration-satellite service and meteorologi
9、cal-satellite service (Question ITU-R 141/7) (1995-1997-1999-2006-2017) Scope This Recommendation specifies the performance objectives for data transmission systems of the Earth exploration-satellite service (EESS) and meteorological-satellite service (MetSat) operating either in low-Earth orbit (LE
10、O) or in geostationary orbit. Keywords EESS, METSAT, non-GSO satellites, GSO satellites, data transmission, interference criteria Related Recommendations and Reports Recommendations ITU-R SA.1020, ITU-R SA.1627 and ITU-R SA.1021 The ITU Radiocommunication Assembly, considering a) that the hypothetic
11、al reference system specified in Recommendation ITU-R SA.1020 defines space-to-Earth links for data transmission, encompassing direct readout of data acquisition of recorded data, as well as links for data dissemination, and direct data readout, data collection and data collection platform (DCP) int
12、errogation by satellite; b) that performance objectives for these transmissions must be consistent with the attendant functional requirements and with the performance limitations associated with the systems and frequency bands in which the requirements will be fulfilled; c) that performance objectiv
13、es for representative systems operating in the Earth exploration-satellite service (EESS) and meteorological-satellite service (MetSat) are intended to provide guidelines for the development of actual systems; d) that performance objectives may be determined using the methodology described in Recomm
14、endation ITU-R SA.1021; e) that the performance objectives are a prerequisite for the determination of interference criteria; f) that Recommendation ITU-R SA.1627 contains the telecommunication requirements and characteristics of EESS and MetSat systems for data collection and their platform locatio
15、ns, recommends 1 that links associated with data transmission systems in the EESS and MetSat using satellites in low-Earth orbit (LEO) should have the performance objectives specified for the frequency bands in Table 1; 2 Rec. ITU-R SA.1159-4 2 that links associated with data transmission systems in
16、 the EESS and MetSat service using satellites in geostationary orbit should have the performance objectives specified for the frequency bands in Table 2. TABLE 1 Performance objectives for links in the EESS and MetSat service using LEO satellites Frequency band Satellite service Modulation Applicabl
17、e elevation angle (degrees) Minimum C/N or maximum BER Percentage of time (%) Function and type of earth station 137-138 MHz (space-to-Earth) MetSat Analogue 25 10 dB 99.9 Direct data readout, low-gain antenna MetSat Digital 5 106 99.9 Direct data readout, tracking antenna MetSat Digital 5 105 99.6
18、CDA station, tracking antenna 400.15-401.00 MHz (space-to-Earth) MetSat Digital 5 106 99.9 Direct data readout, low-gain antenna 401-403 MHz (Earth-to-space) MetSat and EESS Digital 5 105 99.6 Data collection, low-gain antenna 460-470 MHz (space-to-Earth) MetSat and EESS Digital 5 105 99.6 DCP inter
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