- Code word
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For other uses, see Code word (disambiguation).
In communication, a code word is an element of a standardized code or protocol. Each code word is assembled in accordance with the specific rules of the code and assigned a unique meaning. Code words are typically used for reasons of reliability, clarity, brevity, or secrecy.
Contents
Background
Coding Theory is the branch of mathematics that covers source codes and channel codes.
A channel code contains redundancy to allow more reliable communication in the presence of noise. This redundancy means that only a limited set of signals is allowed: this set is the code.
A source code is used to compress words (or phrases or data) by mapping common words into shorter words.
Procedure words are used for voice communication on noisy channels.
See also
- Spelling alphabet
- Safeword
- Password
- Marine VHF radio
- Error correction and detection
- Commercial code
References
- This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).
- This article incorporates public domain material from the United States Department of Defense document "Dictionary of Military and Associated Terms".
- UNHCR Procedure for Radio Communication
External links
Categories:- Data transmission
- Cryptography
- Euphemisms
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