ECSS-E-50-01A – Space data links – Telemetry synchronization and channel coding (6 November 2007)

This standard has been cancelled and replaced by ECSS-E-ST-50-01C ( 31 July 2008).


This Standard establishes a common implementation of space telemetry channel coding systems.

Several space telemetry channel coding schemes are specified in this Standard. The specification does not attempt to quantify the relative coding gain or the merits of each scheme, nor the design requirements for encoders or decoders. However, some application profiles are discussed in Annex D. Performance data for the coding schemes specified in this Standard can be found in CCSDS
130.1-G-1. Annex G describes the related mission configuration parameters.

Further provisions and guidance on the application of this standard can be found in the following publications:

  • ECSS-E-50B, Communications General Requirements, which defines the principle characteristics of communication protocols and related services for all communication layers relevant for space communication (physical to application-layer), and their basic relationship to each other.
  • The handbook ECSS-E-HB-50A, Communications guidelines, which provides information about specific implementation characteristics of these protocols in order to support the choice of a certain communications profile for the specific requirements of a space mission

Users of this present standard are invited to consult these documents before taking decisions on the implementation of the present one.

When viewed from the perspective of a specific project context, the requirements defined in this Standard should be tailored to match the genuine requirements of a particular profile and circumstances of a project.

NOTE Tailoring is a process by which individual requirements or specifications, standards and related documents are evaluated and made applicable to a specific project, by selection, and, in some exceptional cases, modification of existing or addition of new requirements.