Unformatted text preview: links between CCSDS Agencies in cross-support situations.
This Recommended Standard includes comprehensive specification of the data formats and
procedures for inter-Agency cross support. It is neither a specification of, nor a design for,
real systems that may be implemented for existing or future missions.
The Recommended Standard specified in this document is to be invoked through the normal
standards programs of each CCSDS Agency, and is applicable to those missions for which
cross support based on capabilities described in this Recommended Standard is anticipated.
Where mandatory capabilities are clearly indicated in sections of this Recommended
Standard, they must be implemented when this document is used as a basis for cross support.
Where options are allowed or implied, implementation of these options is subject to specific
bilateral cross support agreements between the Agencies involved.
1.4 RATIONALE The CCSDS believes it is important to document the rationale underlying the
recommendations chosen, so that future evaluations of proposed changes or improvements
will not lose sight of previous decisions. CCSDS 131.0-B-2 Page 1-1 August 2011 CCSDS RECOMMENDED STANDARD FOR TM SYNCHRONIZATION AND CHANNEL CODING 1.5 DOCUMENT STRUCTURE This document is divided into eleven numbered sections and seven annexes:
a) section 1 presents the purpose, scope, applicability and rationale of this
Recommended Standard and lists the conventions, definitions, and references used
throughout the document;
b) section 2 provides an overview of synchronization and channel coding;
c) section 3 specifies convolutional coding;
d) section 4 specifies Reed-Solomon coding;
e) section 5 concatenated coding;
f) section 6 specifies Turbo coding;
g) section 7 specifies low-density parity-check coding;
h) section 8 specifies the frame synchronization scheme;
i) section 9 specifies the Pseudo-Randomizer;
j) section 10 specifies the allowed lengths of Transfer Frames;
k) section 11 lists the managed parameters associated with synchronization and channel
l) annex A defines the service provided to the users;
m) annex B discusses security issues related to TM Channel Coding;
n) annex C provides the generator matrix circulant...
View Full Document
- Spring '14
- ........., Error detection and correction, CCSDS