(adsbygoogle = window.adsbygoogle || []).push({}); Need help!!! Digital signals. Energy and power

1. The problem statement, all variables and given/known data

∞

∑ (3)^2n

n=0

FInd the energy of the signal

Find the power of the signal

3. The attempt at a solution

Energy: (3)2n = 32+34+36+...=9+81+...= ∞

N

Power: lim (1/(2N+1)) * ∑ |x(n)^2 |

N→∞ N=-n

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Need help Digital signals. Energy and power

**Physics Forums | Science Articles, Homework Help, Discussion**