In telecommunications, maximal-ratio combining (MRC) is a method of diversity combining in which:
- the signals from each channel are added together,
- the gain of each channel is made proportional to the rms signal level and inversely proportional to the mean square noise level in that channel.
- different proportionality constants are used for each channel.
It is also known as ratio-squared combining and predetection combining. Maximal-ratio combining is the optimum combiner for independent AWGN channels.
MRC can restore a signal to its original shape.
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).
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