Question: Figure shows the signal flow graph for a causal discrete-time LTI system. Branches without gains explicitly indicated have a gain of unity. (a) Determine h[1],

Figure shows the signal flow graph for a causal discrete-time LTI system. Branches without gains explicitly indicated have a gain of unity.

(a) Determine h[1], the impulse response at n = 1.

(b) Determine the difference equation relating x[n] and y [n].

y(n] x[n] 2

y(n] x[n] 2

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