1、BSI Standards PublicationBS EN 16603-50:2014Space engineering CommunicationsBS EN 16603-50:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16603-50:2014.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/68, Space systems and op
2、erations.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI
3、 StandardsLimited 2014ISBN 978 0 580 84102 6ICS 49.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2014.Amendments issued since publicationDate Tex
4、t affectedBS EN 16603-50:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16603-50 September 2014 ICS 49.140 English version Space engineering - Communications Ingnierie spatiale - Communications Raumfahrttechnik - Kommunikation This European Standard was approved by CEN on 1 March 2014. CEN
5、 and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obta
6、ined on application to the CEN-CENELEC Management Centre or to any CEN and CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN and CENELEC member into its own languag
7、e and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugos
8、lav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-10
9、00 Brussels 2014 CEN/CENELEC All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for CENELEC Members. Ref. No. EN 16603-50:2014 EBS EN 16603-50:2014EN 16603-50:2014 (E) 2 Table of contents Foreword 5 Introduction 6 1 Scope . 7 2 Normative reference
10、s . 8 3 Terms, definitions and abbreviated terms 9 3.1 Terms defined in other standards . 9 3.2 Terms specific to the present standard . 9 3.3 Abbreviated terms. 11 4 Space communications engineering principles . 13 4.1 Context . 13 4.2 Overall space communication . 14 4.3 Space communication domain
11、s 17 4.3.1 Overview . 17 4.3.2 Space network 18 4.3.3 Space link . 18 4.3.4 Ground network 19 4.4 Communications engineering process 19 4.4.1 Introduction . 19 4.4.2 Communication engineering activities . 19 4.4.3 Process milestones . 21 4.5 Relationship with other standards . 22 4.6 Communications
12、architecture . 22 4.7 Spacecraft control considerations . 23 5 Requirements 25 5.1 Introduction . 25 5.2 Space communication system engineering process 25 5.2.1 Requirements engineering 25 5.2.2 Analysis 26 5.2.3 Design and configuration. 27 5.2.4 Implementation . 28 5.2.5 Verification 29 5.2.6 Oper
13、ations 29 BS EN 16603-50:2014EN 16603-50:2014 (E) 3 5.3 Space communication system 30 5.3.1 Bandwidth allocation . 30 5.3.2 Congestion 30 5.3.3 Cessation of emission . 31 5.4 Telecommanding 31 5.4.1 Commandability at all attitudes and rates 31 5.4.2 Telecommand delivery service 31 5.4.3 Erroneous te
14、lecommand rejection . 31 5.4.4 Essential command distribution . 31 5.4.5 Command authentication 32 5.4.6 Command encryption 32 5.4.7 Commanding-in-the-blind 32 5.4.8 Telecommand acknowledgement 32 5.5 Telemetry . 32 5.5.1 Telemetry at all attitudes and rates . 32 5.5.2 Essential telemetry acquisitio
15、n 32 5.5.3 Telemetry source identification 33 5.5.4 Telemetry-in-the-blind . 33 5.5.5 Telemetry packet time stamping 33 5.5.6 Simultaneous support of differing source rates 33 5.6 Space link . 34 5.6.1 Introduction . 34 5.6.2 Directionality . 34 5.6.3 Short contact periods 34 5.6.4 Interoperability
16、35 5.6.5 Orbits 35 5.6.6 Noise sources . 35 5.6.7 Mission phases . 35 5.6.8 Link setup times 35 5.6.9 Mixed isochronous and asynchronous traffic . 35 5.6.10 Mixed housekeeping and payload data . 35 5.6.11 Space link performance 36 5.6.12 Space link frequency . 37 5.6.13 Space link protocol 38 5.6.14
17、 Space link service . 39 5.7 Space network 41 5.7.1 General . 41 BS EN 16603-50:2014EN 16603-50:2014 (E) 4 5.7.2 Space network services 42 5.8 Ground network 43 5.8.1 Overview . 43 5.8.2 Data labelling 43 5.8.3 Security . 43 5.8.4 Error rates . 43 5.8.5 Hot redundant operation of ground network node
18、s 43 5.8.6 Ground network availability . 43 Annex A (normative) Communication system requirements document (CSRD) - DRD . 44 Annex B (normative) Communication system baseline definition (CSBD) - DRD 48 Annex C (normative) Communication system analysis document (CSAD) - DRD 53 Annex D (normative) Com
19、munication system verification plan (CSVP) - DRD 56 Annex E (normative) Communication system architectural design document (CSADD) - DRD 59 Annex F (normative) Communication system detailed design document (CSDDD) - DRD 62 Annex G (normative) Communication system profile document (CSPD) - DRD 64 Ann
20、ex H (normative) Communication system operations manual (CSOM) - DRD 66 Annex I (informative) Documentation summary 69 Bibliography . 72 Figures Figure 4-1: Example configuration of a space communication system 14 Figure 4-2: CCSDS and Internet space link protocols . 17 Figure 4-3: Space communicati
21、ons reference architecture . 22 Tables Table A- 1 ECSS-E-ST-50 DRD list 70 BS EN 16603-50:2014EN 16603-50:2014 (E) 5 Foreword This document (EN 16603-50:2014) has been prepared by Technical Committee CEN/CLC/TC 5 “Space”, the secretariat of which is held by DIN. This standard (EN 16603-50:2014) orig
22、inates from ECSS-E-ST-50C. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2015, and conflicting national standards shall be withdrawn at the latest by March 2015. Attention is drawn to the
23、possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Tr
24、ade Association. This document has been developed to cover specifically space systems and has therefore precedence over any EN covering the same scope but with a wider domain of applicability (e.g. : aerospace). According to the CEN-CENELEC Internal Regulations, the national standards organizations
25、of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Ne
26、therlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16603-50:2014EN 16603-50:2014 (E) 6 Introduction This standard specifies requirements for the development of the end-to-end data communication system for spacecraft. Imp
27、lementation aspects are defined in both ECSS-E-ST-50 Level 3 standards and CCSDS standards. The complete set of standards to define a complete communication link is project dependent and cannot be specified here. ECSS-E-HB-50 provides some guidance on this aspect, and gives some practical examples.
28、BS EN 16603-50:2014EN 16603-50:2014 (E) 7 1 Scope This Standard specifies the requirements for the development of the end-to-end data communications system for spacecraft. Specifically, this standard specifies: The terminology to be used for space communication systems engineering. The activities to
29、 be performed as part of the space communication system engineering process, in accordance with the ECSS-E-ST-10 standard. Specific requirements on space communication systems in respect of functionality and performance. The communications links covered by this Standard are the space-to-ground and s
30、pace-to-space links used during spacecraft operations, and the communications links to the spacecraft used during the assembly, integration and test, and operational phases. Spacecraft end-to-end communication systems comprise components in three distinct domains, namely the ground network, the spac
31、e link, and the space network. This Standard covers the components of the space link and space network in detail. However, this Standard only covers those aspects of the ground network that are necessary for the provision of the end-to-end communication services. NOTE Other aspects of the ground net
32、work are covered in ECSS-E-ST-70. This Standard may be tailored for the specific characteristics and constraints of a space project in conformance with ECSS-S-ST-00. BS EN 16603-50:2014EN 16603-50:2014 (E) 8 2 Normative references The following normative documents contain provisions which, through r
33、eference in this text, constitute provisions of this ECSS Standard. For dated references, subsequent amendments to, or revisions of any of these publications, do not apply. However, parties to agreements based on this ECSS Standard are encouraged to investigate the possibility of applying the most r
34、ecent editions of the normative documents indicated below. For undated references the latest edition of the publication referred to applies. EN reference Reference in text Title EN 16601-00-01 ECSS-S-ST-00-01 ECSS system Glossary of terms BS EN 16603-50:2014EN 16603-50:2014 (E) 9 3 Terms, definition
35、s and abbreviated terms 3.1 Terms defined in other standards For the purpose of this Standard, the terms and definitions from ECSS-S-ST-00-01 apply, in particular for the following term: function 3.2 Terms specific to the present standard 3.2.1 channel combination of protocol and medium that provide
36、s a physical layer service from end-to-end NOTE This is the transfer of the unstructured bitstream from point-to-point. 3.2.2 communication service service that provides the capability of moving data between users. NOTE At least two users are involved when a communication service is used, one sendin
37、g data and the other(s) receiving data. 3.2.3 cross support use by one party of part of another partys data system resources to complement its own system 3.2.4 entity active element within a system 3.2.5 interface description of the connection between real or abstract objects 3.2.6 isochronous servi
38、ce service providing for the transfer of data with a defined maximum deviation from a nominal delay from end to end BS EN 16603-50:2014EN 16603-50:2014 (E) 10 3.2.7 protocol set of rules and formats (semantic and syntactic) that determine the communication behaviour of layer entities in the performa
39、nce of communication functions 3.2.8 service capability of a layer, and the layers beneath it (a service-provider), that is provided to service-users at the boundary between the service-provider and the service-users NOTE The service defines the external behaviour of the service-provider, independen
40、t of the mechanisms used to provide that behaviour. Layers, layer entities, and application-service-elements are examples of components of a service-provider. 3.2.9 service data unit amount of information whose identity is preserved when transferred between peer entities in a given layer and which i
41、s not interpreted by the supporting entities in that layer 3.2.10 service-provider abstract representation of the totality of those entities which provide a service to service-users NOTE A service provider includes entities in the layer at which the service is provided, and in the layers beneath it.
42、 3.2.11 service-user entity in a single system that makes use of a service NOTE The service-user makes use of the service through a collection of service primitives defined for the service. 3.2.12 simplex communicating in one direction from data source to data sink 3.2.13 source entity that sends se
43、rvice-data-units, using a service provider 3.2.14 sink entity that receives service-data-units from a service provider 3.2.15 telecommand communication link from ground to space by which a spacecraft is commanded 3.2.16 telemetry housekeeping data and payload data BS EN 16603-50:2014EN 16603-50:2014
44、 (E) 11 NOTE Housekeeping telemetry is usually transmitted at low rate, but payload data can be transmitted at a very high rate. 3.2.17 telemetry link link from spacecraft to ground over which data generated on the spacecraft is provided to ground 3.2.18 user service-user 3.2.19 user application app
45、lication that makes use of data handling system services NOTE An application can be a software entity or a non-software entity which is controlling an onboard system. 3.3 Abbreviated terms For the purpose of this Standard, the abbreviated terms from ECSS-ST-00-01 and the following apply: Abbreviatio
46、n Meaning AIT assembly, integration, and test AR acceptance review ARQ automatic repeat request BER bit error rate CCITT Consultative Committee for International Telegraph and Telephone CCSDS Consultative Committee for Space Data Systems CDMU central data management unit CDR critical design review C
47、SAD communication system analysis document CSADD communication system architectural design document CSBD communication system baseline definition CSDDD communication system detailed design document CSOM communication system operations manual CSPD communication system profile document CSRD communicat
48、ion system requirements document CSVP communication system verification plan DRD document requirements definitions EIRP equivalent isotropically radiated power EMC electromagnetic compatibility ISO International Organization for Standardization BS EN 16603-50:2014EN 16603-50:2014 (E) 12 ITU Internat
49、ional Telecommunication Union ITU-R ITU Radiocommunication ITU-RR ITU Radio Regulations LEOP launch and early operations phase MEC mission experiment centre OSI open system interconnection OCC operational control centre PDR preliminary design review PFD power flux density QR qualification review RF radio frequency SDU service data unit SRR system requirements review TT to ensure that the RF links to and from the spacecraft can be used for orbit determination and ranging; to ensure reliable and error free end-to-end communication between ground stations and the spacecr
