Very challenging! Digital signal processing.

  • Thread starter cleopatra
  • Start date
  • #1
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Homework Statement



Signal x(n)= (1/sqrt(n)) * u(n)
1.Find the energy of the signal.
2.Is the energy finite or infinite?


Homework Equations



sum|x(n)|^2 = energy

The Attempt at a Solution

 

Answers and Replies

  • #2
2
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You are basically being asked to test the convergence of the series with term 1/n, n ranging from 1 to infinite.
 
  • #3
45
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I know, I just can´t calculate it out.
Can you please helpe me?

And how do I know if it´s finite or not?
 
  • #5
143
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It would be helpful if you could show your working

Also, does u(n) = unit step function with n as the parameter ?
 
Last edited:

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