scaling

Let f (t) be a periodic signal with fundamental period T₀ > 0. Consider the signal y(t) = f(αt), where α > 1. The Fourier series expansions of f(t) and y(t) are given by f(t) = $\s...

A causal and stable LTI system with impulse response h(t) produces an output y(t) for an input signal x(t). A signal x(0.5t) is applied to another causal and stable LTI system with...