Shift-Invariant System In the case of sequences and systems with indices n related to discrete instants of time the above property is called time-invariance property Time-invariance property ensures that for a specified input, the output is independent of the time the input is being applied 16 Copyright C 2001, S K MitraCopyright © 2001, S. K. Mitra 16 Shift-Invariant System • In the case of sequences and systems with indices n related to discrete instants of time, the above property is called time-invariance property • Time-invariance property ensures that for a specified input, the output is independent of the time the input is being applied