Sunday, September 15, 2013

Coherrent and Non Coherrent Detection

In general two types signal detection methods can be used: coherent and  non-coherent. 

Coherent method takes advantage of channel knowledge (channel estimation) whereas non-coherent exploits optimization metric corresponding to the average channel statistics.

In practice this means that coherent detection can use both amplitude and phase information of the complex signal. Non-coherent can only use amplitude information.

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