Power

Average power of finite length discrete signal

Average power of finite length discrete signal
  1. How do you find the average power of a discrete signal?
  2. What is the average power of energy signal?

How do you find the average power of a discrete signal?

Power (sometimes referred to as average power)

The power of a discrete-time signal x[n] is Px=limN→∞12N+1N∑n=−N|x[n]|2.

What is the average power of energy signal?

A power signal has infinite energy and an energy signal has zero average power. Transient (finite duration) signals are energy signals while periodic signals are power signals.

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