ISO 17808:2014

Space data and information transfer systems — Telemetry (TM) channel coding profiles

ISO 17808:2014 presents recommendations regarding the usage of coding schemes described in references [1]-[2] in the various mission profiles that are encountered in space research, space operations, and Earth exploration. Within this document, it is assumed that at the sending end the Synchronization and Channel Coding sublayer accepts at a constant rate transfer frames of fixed length from the Data Link protocol sublayer; performs the encoding and synchronization functions selected for the mission; and delivers a continuous and contiguous stream of channel symbols to the Physical layer. At the receiving end, the Synchronization and Channel Coding sublayer: accepts a continuous and contiguous stream of channel symbols from the Physical layer; performs the synchronization and decoding functions selected for the mission; delivers transfer frames to the Data Link protocol sublayer. Profiles for Earth-to-space and Proximity links are out of scope and are not addressed in this document. Communication profiles for space-to-Earth links that are currently not supported by CCSDS, e.g. via data relay satellites, are not addressed in this document.

Systèmes de transfert des données et informations spatiales — Profils de codage de canal pour télémesure (TM)

General Information

• Status: Published
• Publication Date: 22-Jun-2014
• ICS: 49.140 - Space systems and operations
• Technical Committee: ISO/TC 20/SC 13 - Space data and information transfer systems
• Drafting Committee: ISO/TC 20/SC 13 - Space data and information transfer systems
• Current Stage: 9060 - Close of review
• Start Date: 02-Dec-2024

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 17808
First edition
2014-07-01

Space data and information transfer
systems — Telemetry (TM) channel
coding profiles
Systèmes de transfert des données et informations spatiales — Profils
de codage de canal pour télémesure (TM)



Reference number
ISO 17808:2014(E)
©
ISO 2014

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ISO 17808:2014(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any
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Published in Switzerland

ii © ISO 2014 – All rights reserved

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ISO 17808:2014(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described in the
ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO
documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified
during the development of the document will be in the Introduction and/or on the ISO list of patent declarations
received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not constitute an
endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as
well as information about ISO's adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the
following URL: Foreword - Supplementary information
ISO 17808 was prepared by the Consultative Committee for Space Data Systems (CCSDS) (as CCSDS 131.4-M-
1, July 2011) and was adopted (without modifications except those stated in Clause 2 of this International
Standard) by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 13, Space data and
information transfer systems.
iii

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INTERNATIONAL STANDARD ISO 17808:2014(E)

Space data and information transfer systems — Telemetry (TM)
channel coding profiles
1 Scope
This International Standard presents recommendations regarding the usage of coding schemes described in
references [1]-[2] in the various mission profiles that are encountered in space research, space operations,
and Earth exploration.
Within this document, it is assumed that at the sending end the Synchronization and Channel Coding sublayer
 accepts at a constant rate transfer frames of fixed length from the Data Link protocol sublayer;
 performs the encoding and synchronization functions selected for the mission; and
 delivers a continuous and contiguous stream of channel symbols to the Physical layer.
At the receiving end, the Synchronization and Channel Coding sublayer:
 accepts a continuous and contiguous stream of channel symbols from the Physical layer;
 performs the synchronization and decoding functions selected for the mission;
NOTE The decoding functions include validation of frames to determine their quality with respect to the possible
presence of undetected errors.
 delivers transfer frames to the Data Link protocol sublayer.
Profiles for Earth-to-space and Proximity links are out of scope and are not addressed in this document.
Communication profiles for space-to-Earth links that are currently not supported by CCSDS, e.g. via data relay
satellites, are not addressed in this document.
2 Requirements
Requirements are the technical recommendations made in the following publication (reproduced on the
following pages), which is adopted as an International Standard:
CCSDS 131.4-M-1, July 2011, TM Channel Coding Profiles
For the purposes of international standardization, the modifications outlined below shall apply to the specific
clauses and paragraphs of publication CCSDS 131.4-M-1.
Pages i to vi
This part is information which is relevant to the CCSDS publication only.
Pages 1-2
Add the following information to the reference indicated:
© ISO 2014 – All rights reserved 1

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ISO 17808:2014(E)
[1] Document CCSDS 131.0-B-2, August 2011, is equivalent to ISO 22641:2012.
3 Revision of publication CCSDS 131.4-M-1
It has been agreed with the Consultative Committee for Space Data Systems that Subcommittee
ISO/TC 20/SC 13 will be consulted in the event of any revision or amendment of publication CCSDS 131.4-M-
1. To this end, NASA will act as a liaison body between CCSDS and ISO.
2 © ISO 2014 – All rights reserved

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Recommendation for Space Data System Practices
TM CHANNEL
CODING PROFILES
RECOMMENDED PRACTICE
CCSDS 131.4-M-1
MAGENTA BOOK
July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
AUTHORITY



Issue: Recommended Practice, Issue 1
Date: July 2011
Location: Washington, DC, USA

This document has been approved for publication by the Management Council of the
Consultative Committee for Space Data Systems (CCSDS) and represents the consensus
technical agreement of the participating CCSDS Member Agencies. The procedure for
review and authorization of CCSDS documents is detailed in the Procedures Manual for the
Consultative Committee for Space Data Systems, and the record of Agency participation in
the authorization of this document can be obtained from the CCSDS Secretariat at the
address below.


This document is published and maintained by:

CCSDS Secretariat
Space Communications and Navigation Office, 7L70
Space Operations Mission Directorate
NASA Headquarters
Washington, DC 20546-0001, USA

CCSDS 131.4-M-1 Page i July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
STATEMENT OF INTENT
The Consultative Committee for Space Data Systems (CCSDS) is an organization officially
established by the management of its members. The Committee meets periodically to address
data systems problems that are common to all participants, and to formulate sound technical
solutions to these problems. Inasmuch as participation in the CCSDS is completely
voluntary, the results of Committee actions are termed Recommendations and are not in
themselves considered binding on any Agency.
CCSDS Recommendations take two forms: Recommended Standards that are prescriptive
and are the formal vehicles by which CCSDS Agencies create the standards that specify how
elements of their space mission support infrastructure shall operate and interoperate with
others; and Recommended Practices that are more descriptive in nature and are intended to
provide general guidance about how to approach a particular problem associated with space
mission support. This Recommended Practice is issued by, and represents the consensus of,
the CCSDS members. Endorsement of this Recommended Practice is entirely voluntary
and does not imply a commitment by any Agency or organization to implement its
recommendations in a prescriptive sense.
No later than five years from its date of issuance, this Recommended Practice will be
reviewed by the CCSDS to determine whether it should: (1) remain in effect without change;
(2) be changed to reflect the impact of new technologies, new requirements, or new
directions; or (3) be retired or canceled.
In those instances when a new version of a Recommended Practice is issued, existing
CCSDS-related member Practices and implementations are not negated or deemed to be non-
CCSDS compatible. It is the responsibility of each member to determine when such Practices
or implementations are to be modified. Each member is, however, strongly encouraged to
direct planning for its new Practices and implementations towards the later version of the
Recommended Practice.
CCSDS 131.4-M-1 Page ii July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
FOREWORD
Through the process of normal evolution, it is expected that expansion, deletion, or
modification of this document may occur. This Recommended Practice is therefore subject
to CCSDS document management and change control procedures, which are defined in the
Procedures Manual for the Consultative Committee for Space Data Systems. Current
versions of CCSDS documents are maintained at the CCSDS Web site:
http://www.ccsds.org/
Questions relating to the contents or status of this document should be addressed to the
CCSDS Secretariat at the address indicated on page i.
CCSDS 131.4-M-1 Page iii July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
At time of publication, the active Member and Observer Agencies of the CCSDS were:
Member Agencies
– Agenzia Spaziale Italiana (ASI)/Italy.
– Canadian Space Agency (CSA)/Canada.
– Centre National d’Etudes Spatiales (CNES)/France.
– China National Space Administration (CNSA)/People’s Republic of China.
– Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)/Germany.
– European Space Agency (ESA)/Europe.
– Instituto Nacional de Pesquisas Espaciais (INPE)/Brazil.
– Japan Aerospace Exploration Agency (JAXA)/Japan.
– National Aeronautics and Space Administration (NASA)/USA.
– Space Agency (FSA)/Russian Federation.
– UK Space Agency/United Kingdom.
Observer Agencies
– Austrian Space Agency (ASA)/Austria.
– Belgian Federal Science Policy Office (BFSPO)/Belgium.
– Central Research Institute of Machine Building (TsNIIMash)/Russian Federation.
– China Satellite Launch and Tracking Control General, Beijing Institute of Tracking
and Telecommunications Technology (CLTC/BITTT)/China.
– Chinese Academy of Sciences (CAS)/China.
– Chinese Academy of Space Technology (CAST)/China.
– Commonwealth Scientific and Industrial Research Organization (CSIRO)/Australia.
– CSIR Satellite Applications Centre (CSIR)/Republic of South Africa.
– Danish National Space Center (DNSC)/Denmark.
– Departamento de Ciência e Tecnologia Aeroespacial (DCTA)/Brazil.
– European Organization for the Exploitation of Meteorological Satellites
(EUMETSAT)/Europe.
– European Telecommunications Satellite Organization (EUTELSAT)/Europe.
– Geo-Informatics and Space Technology Development Agency (GISTDA)/Thailand.
– Hellenic National Space Committee (HNSC)/Greece.
– Indian Space Research Organization (ISRO)/India.
– Institute of Space Research (IKI)/Russian Federation.
– KFKI Research Institute for Particle & Nuclear Physics (KFKI)/Hungary.
– Korea Aerospace Research Institute (KARI)/Korea.
– Ministry of Communications (MOC)/Israel.
– National Institute of Information and Communications Technology (NICT)/Japan.
– National Oceanic and Atmospheric Administration (NOAA)/USA.
– National Space Agency of the Republic of Kazakhstan (NSARK)/Kazakhstan.
– National Space Organization (NSPO)/Chinese Taipei.
– Naval Center for Space Technology (NCST)/USA.
– Scientific and Technological Research Council of Turkey (TUBITAK)/Turkey.
– Space and Upper Atmosphere Research Commission (SUPARCO)/Pakistan.
– Swedish Space Corporation (SSC)/Sweden.
– United States Geological Survey (USGS)/USA.
CCSDS 131.4-M-1 Page iv July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
DOCUMENT CONTROL

Document Title Date Status
CCSDS TM Channel Coding Profiles, July 2011 Current issue
131.4-M-1 Recommended Practice, Issue 1




CCSDS 131.4-M-1 Page v July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
CONTENTS
Section Page
1 INTRODUCTION . 1-1

1.1 PURPOSE . 1-1
1.2 SCOPE . 1-1
1.3 RATIONALE . 1-1
1.4 REFERENCES . 1-2

2 OVERVIEW . 2-1

2.1 GENERAL . 2-1
2.2 SPACE RESEARCH NEAR EARTH MISSIONS . 2-1
2.3 SPACE RESEARCH DEEP SPACE MISSIONS . 2-2
2.4 EARTH EXPLORATION MISSIONS . 2-2

3 TM CODING PROFILES . 3-1

3.1 GENERAL . 3-1
3.2 CODING SCHEME SELECTION . 3-1

ANNEX A SECURITY (INFORMATIVE) . A-1
ANNEX B INFORMATIVE REFERENCES (INFORMATIVE) .B-1
ANNEX C GLOSSARY OF TERMS (INFORMATIVE) . C-1
Table
3-1 Coding Schemes . 3-4

CCSDS 131.4-M-1 Page vi July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
1 INTRODUCTION
1.1 PURPOSE
The purpose of this Recommended Practice is to provide guidance to users in the choice of
the coding scheme to be adopted for their space-to-Earth telemetry links. Given the
increasing number of codes available and retained by CCSDS for the transmission of
telemetry (TM), it is necessary to clearly define their domain of applicability.
1.2 SCOPE
This document presents recommendations regarding the usage of coding schemes described
in references [1]-[2] in the various mission profiles that are encountered in space research,
space operations, and Earth exploration.
Within this Recommended Practice it is assumed that at the sending end the Synchronization
and Channel Coding sublayer
– accepts at a constant rate transfer frames of fixed length from the Data Link protocol
sublayer;
– performs the encoding and synchronization functions selected for the mission; and
– delivers a continuous and contiguous stream of channel symbols to the Physical layer.
at the receiving end, the Synchronization and Channel Coding sublayer:
– accepts a continuous and contiguous stream of channel symbols from the Physical
layer;
– performs the synchronization and decoding functions selected for the mission;
NOTE – The decoding functions include validation of frames to determine their
quality with respect to the possible presence of undetected errors.
– delivers transfer frames to the Data Link protocol sublayer.
Profiles for Earth-to-space and Proximity links are out of scope and are not addressed in this
document. Communication profiles for space-to-Earth links that are currently not supported
by CCSDS, e.g., via data relay satellites, are not addressed in this document.
1.3 RATIONALE
Over the years, CCSDS has standardized a set of schemes for forward error correction coding
based on state-of-the-art techniques. Indeed, since the needs of missions can be very
different, a single type of code would not satisfy all the needs, and possible selections should
be offered to the users.
CCSDS 131.4-M-1 Page 1-1 July 2011

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ISO 17808:2014(E)
CCSDS RECOMMENDED PRACTICE CONCERNING TM CHANNEL CODING PROFILES
For instance, deep space missions generally operate at low data rates and have, in general,
rather mild bandwidth constraints; on the other hand, link performances are crucial and high
coding gain is required.
Conversely, near-Earth missions, be they for space research, for space operations, or for
Earth exploration, may operate at high or very high data rates on their telemetry link and
require, in general, a compromise between coding gain and bandwidth expansion. Punctured
convolutional codes were developed specifically for these profiles. Recently introduced
LDPC codes appear as a possible alternative with better performances.
Some mission profiles involve highly dynamic links. One of the cases is represented by Earth
exploration satellites operating on low Earth orbits. The increasing amount of data to dump
to Earth during the short contacts with ground stations requires ever increasing da
...