The following are the impulse responses of discrete-time LTI systems. Determi whether each system is causal and/or stable. Justify your answers. (a) h[n] = ()"u[n] (b) h[n] (c) h[n] %3D (0.8)"u[n + 2] %3D G"ul-n] %3D

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The following are the impulse responses of discrete-time LTI systems. Determine
whether each system is causal and/or stable. Justify your answers.
(a) h[n]
(b) h[n]
(c) h[n]
(d) h[n]
(e) h[n] = (-"u[n] + (1.01)"u[n - 1]
(f) h[n] = (-)"u[n] + (1.01)"u[1 – n]
"u[n]
(0.8)" u[n + 2]
%3D
(5)"u[3 - п]
%3D
%3D
%3D
(g) h[n]
n(})"u[n– 1]
%3D
Transcribed Image Text:The following are the impulse responses of discrete-time LTI systems. Determine whether each system is causal and/or stable. Justify your answers. (a) h[n] (b) h[n] (c) h[n] (d) h[n] (e) h[n] = (-"u[n] + (1.01)"u[n - 1] (f) h[n] = (-)"u[n] + (1.01)"u[1 – n] "u[n] (0.8)" u[n + 2] %3D (5)"u[3 - п] %3D %3D %3D (g) h[n] n(})"u[n– 1] %3D
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Digital Modulation Scheme (Amplitude-Shift Keying [ASK], Phase-Shift Keying [PSK], Frequency-Shift Keying [FSK])
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