From what I understand that these are input signals produce a transient output at the start & later it becomes a steady-state output when passed through an LTI system or h[n].
- If that definition is incorrect, then what is a suddenly applied signal in a DT system?
- Are these signals always sinusoids such as cos(wn) u[n], sin(wn) u[n] and e ^(jwn) u[n]?