Coherence Time (communications Systems) - Simple Model

Simple Model

In a simple model, a signal transmitted at time will be received as

where is the channel impulse response (CIR) at time . A signal transmitted at time will be received as

Now, if is relatively small, the channel may be considered constant within the interval to .

Coherence time will therefore be given by

Read more about this topic:  Coherence Time (communications Systems)

Famous quotes containing the words simple and/or model:

    I reside at Table Mountain, and my name is Truthful James;
    I am not up to small deceit, or any sinful games;
    And I’ll tell in simple language what I know about the row
    That broke up our society upon the Stanislow.
    But first I would remark, that it is not a proper plan
    For any scientific man to whale his fellow-man,
    Bret Harte (1836–1902)

    If the man who paints only the tree, or flower, or other surface he sees before him were an artist, the king of artists would be the photographer. It is for the artist to do something beyond this: in portrait painting to put on canvas something more than the face the model wears for that one day; to paint the man, in short, as well as his features.
    James Mcneill Whistler (1834–1903)