non-linear system

Let a frequency modulated (FM) signal x(t) = A cos(ω_c t + k_f ∫_{-∞}^t m(λ)dλ), where m(t) is a message signal of bandwidth W. It is passed through a non-linear system with output...

Let a frequency modulated (FM) signal $$x(t) = A\cos ({\omega _c}t + {k_f}\int_{ - \infty }^t {m(\lambda )d\lambda )} $$, where $$m(t)$$ is a message signal of bandwidth W. It is p...

The output $y[n]$ of a discrete - time system for an input $x[n]$ is $$ y[n]=\max\limits_{-\infty \leq k \leq n}|x[k]| $$ The unit impulse response of the system is