S 2.2.4 Classification of Sequences Energy and Power Signals Total energy of a sequence x[n]is defined by =2m2 n=-o0 An infinite length sequence with finite sample values may or may not have finite energy A finite length sequence with finite sample values has finite energy§2.2.4 Classification of Sequences Energy and Power Signals • Total energy of a sequence x[n] is defined by = ∑ ∞ n=−∞ x n 2 x ε [ ] • An infinite length sequence with finite sample values may or may not have finite energy • A finite length sequence with finite sample values has finite energy