S 2.2.4 Classification of Sequences Energy and Power Signals An infinite energy signal with finite average power is called a power signal Example-A periodic sequence which has a finite average power but infinite energy A finite energy signal with zero average power is called an energy signal Example-A finite-length sequence which has finite energy but zero average power§2.2.4 Classification of Sequences Energy and Power Signals • An infinite energy signal with finite average power is called a power signal Example - A periodic sequence which has a finite average power but infinite energy • A finite energy signal with zero average power is called an energy signal Example - A finite-length sequence which has finite energy but zero average power