ISO 22642:2015

Name: ISO 22642:2015 — Space data and information transfer systems — TC synchronization and channel coding
SKU: ISO 22642:2015
Price: 25 EUR
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Space data and information transfer systems — TC synchronization and channel coding

Название (английский):

ISO 22642:2015

Space data and information transfer systems — TC synchronization and channel coding

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 41
Дата публикации:: 16 ноября 2015 г.
Издание:: ISO IS 22642 edition 2 version 1
ICS:: 49.140

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Описание (английский):

ISO 22642:2015 defines synchronization and channel coding schemes in terms of: a) the services provided to the users of this specification; b) data formats; and c) the procedures performed to generate and process the data formats. It does not specify: a) individual implementations or products; b) the methods or technologies required to perform the procedures; or c) the management activities required to configure and control the system.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview - ISO 22642:2015 (TC synchronization and channel coding)

ISO 22642:2015 is an international Recommended Standard, originally prepared by the CCSDS and adopted by ISO, that specifies synchronization and channel coding schemes for the Telecommand (TC) Space Data Link Protocol. The standard defines the services offered to users, the data formats, and the procedures used to generate and process those formats for ground-to-space and space-to-space links. It intentionally does not prescribe specific implementations, technologies or management practices, and replaces the 2005 edition.

Key technical topics and requirements

Service and data format definitions: Formal descriptions of the synchronization and channel-coding services provided to TC users and how those services map to data formats.

BCH coding: Specification of BCH code block formats and encoding/decoding procedures used for error detection and correction at the TC sublayer.

CLTU (Command Link Transmission Unit): Structure and reception logic for CLTUs used to encapsulate telecommands and manage transfer-frame transmissions.

Randomizer: Bit transition randomization logic and its application to improve spectral characteristics and receiver synchronization.

Physical layer operations (PLOPs): Carrier modulation modes, sequences of physical-layer control message (CMM) elements, and recommended operating procedures for PLOP-1 and PLOP-2.

Managed parameters: Lists of configurable parameters for BCH coding, CLTU handling, randomizer settings and PLOPs to support interoperability and configuration control.

Layered model alignment: Alignment with the OSI reference model and unification across CCSDS space link protocols to support cross-support between agencies.

Practical applications

Designing and validating telecommand links for spacecraft and ground stations.

Implementing interoperable TC sublayer software and hardware (modems, protocol stacks) that conform to CCSDS/ISO recommendations.

Ensuring cross-agency compatibility for multi-national or hosted missions needing standardized synchronization and channel coding.

Test plan development, conformance checks, and mission engineering for RF link budgets, modulation, and error-control strategies.

Related standards and context

CCSDS TC Space Data Link Protocol (referenced in ISO 22642)

CCSDS recommended standards and Blue Books for space data systems

OSI Basic Reference Model (for layered architecture alignment)

ISO 22642:2015 is an essential reference for anyone implementing TC synchronization and channel coding in spacecraft communications who needs documented, agency-recognized procedures and data formats to achieve reliable, interoperable telecommand links.

ISO 22642:2015

Abstract

Похожие стандарты

Overview - ISO 22642:2015 (TC synchronization and channel coding)

Key technical topics and requirements

Practical applications

Who should use ISO 22642:2015

Related standards and context

Технические детали

BS ISO 22642:2015

Space data and information transfer systems. TC synchronization and channel coding.

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