What actually this code explains? where it is used and how to interpret it?

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Vishwaraj Manur
Vishwaraj Manur 2019-10-21
回答： Yuan Li 2019-10-21
y=norm(x,2)^2/numel(x)
x is compelex vector.

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Yuan Li
Yuan Li 2019-10-21
In the signal processing field, y is the power of signal x.
the square of 2-norm of x can be seen as energy of x, numel(x) is the length of x, then the ratio of energy and signal length is the signal power.

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