GB/T 39354-2020 English PDF

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GB/T 39354-2020: Space data and information transfer systems. Proximity space link protocol. Physical layer
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39354-2020	299	Add to Cart	4 days	Space data and information transfer systems. Proximity space link protocol. Physical layer	Valid

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Basic data

Standard ID: GB/T 39354-2020 (GB/T39354-2020)
Description (Translated English): Space data and information transfer systems. Proximity space link protocol. Physical layer
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V75
Classification of International Standard: 49.140
Word Count Estimation: 16,122
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Quoted Standard: GB/T 39352; GB/T 39353
Adopted Standard: ISO 21460-2015, MOD
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the general rules, basic functions, radio frequency equipment, communication channel controlled characteristics, performance requirements, etc. of the physical layer in the adjacent space link protocol of the spatial data and information transmission system. This standard applies to communications between adjacent spacecraft. It is recommended to be used together with GB/T 39352 and GB/T 39353.

GB/T 39354-2020: Space data and information transfer systems. Proximity space link protocol. Physical layer

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Spatial data and information transmission system Proximity space link protocol Physical layer) ICS 49.140 V75 National Standards of People's Republic of China Spatial data and information transmission system Neighboring Space Link Protocol Physical Layer 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviations 2 5 General 2 5.1 Information rate agreement 2 5.2 Adjacent space link model 3 6 Basic functions of the physical layer 4 6.1 Overview 4 6.2 Transmitter 5 6.3 Receiver 6 7 Radio frequency equipment 7 7.1 Overview 7 7.2 Coherence requirements 7 8 Communication channel controlled characteristics 7 8.1 Application background 7 8.2 UHF frequency 7 8.3 Other frequency bands 9 8.4 Polarization requirements 9 8.5 Modulation requirements 9 8.6 Adjacent space link rate 9 9 Performance requirements 9 9.1 Carrier frequency stability requirements 9 9.2 Residual AM 9 9.3 Incoherent carrier phase noise 9 9.4 Spectral spurs 10 9.5 Doppler tracking and acquisition requirements 10 Appendix A (informative appendix) Structural changes of this standard compared with ISO 21460.2015 11 Appendix B (informative appendix) The technical differences between this standard and ISO 21460.2015 and the reasons 12

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting method to amend and adopt ISO 21460.2015 "Space Data and Information Transmission System Proximity-1 Space Link Agreement" Discussion on the physical layer. Compared with ISO 21460.2015, this standard has many structural adjustments. Appendix A lists this standard and ISO 21460.2015. The chapter number comparison list. Compared with ISO 21460.2015, there are technical differences between this standard and the clauses involved in these differences have been passed on the outer margins. The set vertical single line (︱) is marked, and a list of corresponding technical differences and their reasons is given in Appendix B. This standard also made the following editorial changes. ---Change the standard name. Change the standard name from "Space Data and Information Transmission System Adjacent-1 Space Link Protocol Physical Layer" For "Space Data and Information Transmission System Neighboring Space Link Protocol Physical Layer"; --- Deleted part of the document structure and references in Chapter 1 of ISO 21460.2015; ---Changed "Abbreviations" in Appendix D of ISO 21460.2015 to Chapter 4 of the main text; --- Deleted Appendix A of ISO 21460.2015 "Protocol Implementation Conformance Statement Format"; --- Deleted Appendix B of ISO 21460.2015 "Security, SANA and Patent Description"; --- Deleted Appendix C "References" of ISO 21460.2015. This standard was proposed and managed by the National Aerospace Technology and Application Standardization Technical Committee (SAC/TC425). Drafting organizations of this standard. Beijing Space Vehicle General Design Department, China Aerospace Standardization Institute, Hefei Bolei Electric Co., Ltd. The main drafters of this standard. Pang Bo, Hao Weining, Wu Ying, Quan Haofang, Guo Jian, Wu Wei, He Xiongwen, Lu Chao, Gao Long, Li Ke, Wang Luyuan, Zhang Jianli. Spatial data and information transmission system Neighboring Space Link Protocol Physical Layer

1 Scope

This standard specifies the general rules, basic functions, and radio frequency settings of the physical layer in the adjacent space link protocol of the spatial data and information transmission system. Controlled characteristics and performance requirements of communication channels, etc. This standard applies to communications between adjacent spacecraft. It is recommended to be used together with GB/T 39352 and GB/T 39353.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 39352 Space Data and Information Transmission System Adjacent Space Link Protocol Data Link Layer (GB/T 39352-2020, ISO 22663.2015, MOD) GB/T 39353 Space Data and Information Transmission System Adjacent Space Link Protocol Synchronization and Coding Sublayer (GB/T 39353- 2020, ISO 21459.2015, MOD)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Conversation A conversation between two (or more) adjacent link transceivers. Note. A complete session includes three typical working phases. session establishment, data service (may include resynchronization, reconnection sub-phases), and session termination. Session termination can be determined by negotiation (for example, sending no-more-data-to-send command), or when communication is interrupted (cannot resynchronize or reconnect) The time is determined by the transceiver itself. 3.2 Space link Communication links between spacecraft and between spacecraft and the ground. Note. A space link includes one or more one-way or two-way physical channels. 3.3 Adjacent space link Adjacent link It is a communication link for direct communication between spacecraft in the distance range of 1m to 100,000km. Used for the communication link between the main spacecraft and the auxiliary spacecraft. Note. Short-distance, two-way, fixed or mobile radio frequency links are mainly used to carry out between detectors, landers, patrol devices, orbital constellations, and orbital repeaters. Communication has the characteristics of small delay, medium signal energy (not weak signal), independent conversation and short time. 3.4 Caller The initiator of the adjacent space link establishment process and the management subject of the session negotiation process. ......

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