강의/Signals and Systems1 1. Signals, System Properties Signal: A function of one or more variables Unit Impulse: δ[n]=(n==0)?1:0 Unit Step: u[n]=(n>=0)?1:0 δ[n]=u[n]−u[n−1] u[n]=∑∞k=0δ[n−k] System: A process by which input signals are transformed to output signals x[n] -> Discrete-Time System -> y[n] x(t) -> Continuous-Time System -> y(t) A system is.. 2022. 7. 21. 이전 1 다음