Question

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A signal :[7] = cos( /4)0.8" [rel is applied to an LTI systern and produces an output 3u[1]. What output is produced by an input airl] = 2:0[– 317 bur un 3 3un +3] 3un - 3] Allowed attempts: 1 Check Answer An LTI system has impulse response h[n] = 0.5" (n). What input : 1) will produce an output y(n) = 3(0.5)(n-Halle 1)? [n] = 68 n - 1] 2n = 0[n + 1] x1 = 35 n] (11 = 36 2+1] [1] = 38 n – 1] Allowed attempts: 1 Check Answer An LTI system with impulse response h n = un is BIBO stable. True False Allowed attempts: 1 Check Answer LTI systems 1, 2, and 3 have impulse responses him, here and h(r), respectively and are interconnected as follows. The input :c7] is first applied to syster 1, then the output of systern 1 is applied to systems 2 and 3 arranged in parallel, and the outputs of systems 2 and 3 are summed to produce the output yn). We seek an expression for the impulse response h[n of the overall system relating Into yn. Select all correct answers. h[n = 12 h (2] + h, 7) + hz] Pe[1] = hi[r] hgre] ha ] h[n= h, [n] * (hzin] – h3 [he] 3 [n = [] * 2 + 3 ] + [ ] h[n = 12 n * h1n] + h 1] h32] Allowed attempts: 1 Check Answer

Answer 1

Po ain) yon) 24(n-3) (n) = Bulm) y(n-3) [: LT1 System) Op cuin-3), o n s S(n-1) O 38non co) Cimpune response) (65)"ben-1) 3 (o.sjon ) - 3810-1), © boun) The system is not BiBO Stable = False I fox BIBO etable Roc must incluele unit circle for using Roc cannot inchoses unit Circle] in thin miny matry -> b[n) - hilm ® [mcm than] 4&5 Oprions are correct.