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

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Vishwaraj Manur on 21 Oct 2019

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Answered: Yuan Li on 21 Oct 2019

y=norm(x,2)^2/numel(x)

x is compelex vector.

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Nicolas B. on 21 Oct 2019

Could you please explain what is your question?

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Yuan Li on 21 Oct 2019

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https://in.mathworks.com/matlabcentral/answers/486506-what-actually-this-code-explains-where-it-is-used-and-how-to-interpret-it#answer_397362

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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