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IEVref:171-07-29ID:
Language:enStatus: Standard
Term: average information rate
Synonym1:
Synonym2:
Synonym3:
Symbol: H*
Definition: quotient of the character mean entropy H by the mean duration of a character

H* = H/t(X)

where X = {x1, …, xn} is the set of input characters xi (i = 1, …, n) and t( X )= n=1 n p( x i )t( x i ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaiGc9aspC0FXdbbc9asFfpec8Eeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meaabaGacmaadiWaaiWabaabaiaafaaake aacaWG0bWaaeWaaeaacaWGybaacaGLOaGaayzkaaGaeyypa0ZaaabC aeaacaWGWbGaaiikaiaadIhadaWgaaWcbaGaamyAaaqabaGccaGGPa GaeyyXICTaamiDaiaacIcacaWG4bWaaSbaaSqaaiaadMgaaeqaaOGa aiykaaWcbaGaamOBaiabg2da9KqzGdGaaGymaaWcbaGaamOBaaqdcq GHris5aaaa@53DA@ is the mean value of the duration t(xi) of a character xi which occurs with probability p(xi)

Note 1 to entry: The average information rate can be expressed in a unit such as the shannon per character and second.


Publication date:2019-03-29
Source:IEC 80000-13:2008, 13-38, modified – Addition of information useful for the context of the IEV, and adaptation to the IEV rules
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