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QUESTIONS 1. Determine whether or not the LTI systems with the following impulse responses are causal...
8. Find the Fourier transform of the following signal. (5 points) x(0) 2 1 9. Determine whether or not the following signals are periodic, and if periodic, give their periods in seconds and frequency in hertz. a. X(t) = 12.8 Cos (320xt - . (3 points). b. x(n) = 11.6 Cos (3n). (3 points). 6. x(n) = 1.45 sinn). (3 points). 10. Determine whether or not the LTI systems with the following impulse responses are causal and stable. Note that...
Problem 1. Determine if the LTI systems with impulse responses as given below are sta ble/unstable and causal/non-causal Note: u(t)/ ulnl represents unit-step. δ(1)/ δ[n] represents unit impulse. I. hl (t) = δ(t + 4)-5(5-t) 2. h2(l) e"cos(nt)u(-)
5- Determine whether or not each of the following LTI systems with the given impulse response are memoryless: a) h(t) = 56(t- 1) b) h(t) = eT u(t) e) h[n] sinEn) d) h[n] = 26[n] 6- Determine whether or not each of the following LTI systems with the given impulse response are stable: a) h(t) = 2 b) h(t) = e2tu(t - 1) c) h[n] = 3"u[n] d) h[n] = cos(Tm)u[n] 7- Determine whether or not each of the following...
The following functions have impulse responses from discrete and continuous LTI systems. Determine whether each system is causal and convergent a) h[n] = 2n u[3 - n] b) h(t) = u(1 – t) – 1/2e-t u(t) c) h[n] = [1 – (0.99)n ]u[n] d) h(t) = e15t [u(t – 1) – u(t – 100)]
The impulse response of some LTI systems are given below.
Determine which ones are stable and/or causal?
e. hn] (-0.5)"u[n] (1.02)"u[1-n] ht)2u(t 2) -2t t h, h(t)-sin()
3.21. An LTI system has the impulse response h()-u(t+7)-u(t-8) (a) Determine whether this system is causal (b) Determine whether this system is stable. (c) Find the system response to the input x(f) 8(t-2)-28(t+ 2)
Four systems have the following impulse responses. For each one sketch its impulse response, then draw its pole-zero plot and region of convergence. For each one also determine whether the system is causal and whether it is stable. (a) h1(t) e u(t) (b) h2(t) eu-t)
7. A causal LTI system has a transfer function given by H (z) = -1 (1 4 The input to the system is x[n] = (0.5)"u[n] + u[-n-1] ) Find the impulse response of the system b) Determine the difference equation that describes the system. c) Find the output y[n]. d) Is the system stable?
2.6.1-2.6.62.6.1 Consider a causal contimuous-time LTI system described by the differential equation$$ y^{\prime \prime}(t)+y(t)=x(t) $$(a) Find the transfer function \(H(s)\), its \(R O C\), and its poles.(b) Find the impulse response \(h(t)\).(c) Classify the system as stable/unstable.(d) Find the step response of the system.2.6.2 Given the impulse response of a continuous-time LTI system, find the transfer function \(H(s),\) the \(\mathrm{ROC}\) of \(H(s)\), and the poles of the system. Also find the differential equation describing each system.(a) \(h(t)=\sin (3 t) u(t)\)(b)...
2. Linearity Consider a system given with the following impulse response: (5%) h[n] 4u[1 a) Is the system LTI? b) Is it causal? c) Is it stable?
2. Linearity Consider a system given with the following impulse response: (5%) h[n] 4u[1 a) Is the system LTI? b) Is it causal? c) Is it stable?