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GB/T 46724-2025: Space data and information transfer systems - Space data link protocols over DVB-S2 standard
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Space data and information transfer systems - Space data link protocols over DVB-S2 standard
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Standard similar to GB/T 46724-2025 GB/T 43223 | GB/T 32453 | GB/T 47036 | GB/T 47035 | Basic data | Standard ID | GB/T 46724-2025 (GB/T46724-2025) | | Description (Translated English) | Space data and information transfer systems - Space data link protocols over DVB-S2 standard | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | V70 | | Classification of International Standard | 49.140 | | Word Count Estimation | 22,276 | | Date of Issue | 2025-12-02 | | Date of Implementation | 2026-04-01 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 46724-2025: Space data and information transfer systems - Space data link protocols over DVB-S2 standard
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ICS 49.140
CCSV70
National Standards of the People's Republic of China
Space Data and Information Transmission System
DVB-S2 standard bearer space data link protocol
overDVB-S2 standard
Published on 2025-12-02
Implemented on 2026-04-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Abbreviations 1
5 General Rules 2
5.1 Architecture 2
5.2 Function Introduction 3
5.3 Processing Flow 3
6.Generation of SMTF streams 4
6.1 Overview 4
6.2 Input Spatial Data Transmission Frame 5
6.3 Synchronization Identifier Transmission Frame (SMTF) 5
7 DVB-S2 transmission 5
7.1 Overview 5
7.2 DVB-S2 Mode Adaptation Format 5
7.3 Average Channel Symbol Energy 5
7.4 Shaping Filter 5
8 Management Parameters 6
8.1 Overview 6
8.2 Fixed Management Parameters 6
8.3 Dynamic Management Parameters 7
Appendix A (Informative) Structural changes of this document compared to ISO 2020 7.2015 8
Appendix B (Informative) Technical Differences and Reasons Between This Document and ISO 2020 7.2015 11
Appendix C (Normative) Service Definition 13
C.1 Overview 13
C.2 Service Overview 13
C.3 Service Parameters 13
C.4 Service Primitives 13
Appendix D (Informative) DVB-S2 Spectral Efficiency and Mode Identifiers 15
Reference 17
Figure 1.Relationship between layers 3
Figure 2.Data stream format diagram for transmitting spatial data frames using the DVB-S2 standard.
Table 1 Management parameters for transmission frame synchronization 6
Table 2 Fixed Management Parameters for DVB-S2 Transmission 6
Table 3 Dynamic Management Parameters 7
Table A.1 Comparison of structural numbering in this document with ISO 2020 7.2015 8
Table B.1 Technical Differences and Reasons Between This Document and ISO 2020 7.2015 11
Table D.1 Relationship between DVB-S2 coding and modulation schemes and spectral efficiency 15
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document is modified to adopt ISO 2020 7.2015 "Spatial data and information transmission systems based on ETS IDB V-S2 standard".
CCSDS Spatial Link Protocol.
This document has undergone significant structural adjustments compared to ISO 2020 7.2015.A table comparing the structural numbering of the two documents is attached.
Record A.
This document differs significantly from ISO 2020 7.2015.The relevant clauses are indicated in vertical margins.
Single lines (∣) are indicated. A summary of these technical differences and their causes can be found in Appendix B.
The following editorial changes have been made to this document.
---To align with existing standards, the standard name has been changed to "DVB-S2 Standard for Space Data and Information Transmission Systems Bearing Space Data Links".
Road Agreement;
---Added a note for USLP transmission frames (see 6.2.1);
---A note on frame length has been added (see Table 3).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the National Technical Committee on Standardization of Aerospace Technology and Its Applications (SAC/TC425).
This document was drafted by. Xi'an Space Radio Technology Research Institute, China Aerospace Standardization Institute, Northwestern Polytechnical University, and Shenzhen Beihang University.
Xing Industry Technology Research Institute, National Space Science Center of Chinese Academy of Sciences, Jinan Anxun Technology Co., Ltd., Zhejiang Huilong Chip Technology Co., Ltd.
Company, Beijing Electronic Engineering General Research Institute.
The main drafters of this document are. Xie Tianjiao, Zhang Wei, Zheng Xiaosong, Li Li, Zhang Jianhua, Han Xiaodong, Yuan Ruijia, Xu Changzhi, Hu Xige, and Wang Rui.
Liu Rongke, Zhou Yuxia, Huang Yonghui, Wang Weijia, Li Hongjuan, Gou Baowei, Wang Xiaoyu, Zi Hongfa, Gu Pilin, and Li Zongtao.
Space Data and Information Transmission System
DVB-S2 standard bearer space data link protocol
1 Scope
This document specifies the interface specifications between the DVB-S2 standard and the Space Data Link Protocol, including the overall architecture, SMTF stream generation, and DVB-
S2 transmits and manages parameters, etc.
This document applies to the design, manufacture, and use of spaceborne payloads that employ the DVB-S2 standard for high-speed data transmission.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 39345-2020 Space Data and Information Transmission Systems - Advanced On-Orbit Systems - Space Data Link Protocol (ISO 22666.
2016, MOD)
Note. There are no technical differences between the content referenced in GB/T 39345-2020 and the content referenced in ISO 22666.2016.
GB/T 39351-2020 Telemetry Space Data Link Protocol for Space Data and Information Transmission Systems (ISO 22645.2016)
MOD)
Note. There are no technical differences between the content referenced in GB/T 39351-2020 and the content referenced in ISO 22645.2016.
GB/T 42040-2022 Unified Space Data Link Protocol for Space Data and Information Transmission Systems
GB/T 42041-2022 Aerospace Terminology. Space Data and Information Transmission
GY/T 338-2020 Specification for Coding and Modulation of Digital Television Satellite Transmission Channels
Note. GY/T 338-2020 has the same technical content as the digital television adaptive transmission protocol standard ETSI EN302307-1 (V1.4.1).
3 Terms and Definitions
The terms and definitions defined in GB/T 42041-2022 and GY/T 338-2020 apply to this document.
4.Abbreviations
The following abbreviations apply to this document.
8PSK. Octal Phase Shift Keying
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