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3. Given the following discrete-time signal: x[n] = 0.21u[n + 1] + u[n] – 2e0.inu[n –...
10) A discrete-time signal is shown in Figure2. Sketch and label carefully the signal x[n]u[3 - n] -3 -2 -1 0 1 2 3 4 5 n
1.Given a discrete-time signal defined as and the values at other instants equal zero. a) y(n)-x(2-n (b) y(n) x(3n-4) (c) y(n)-x(n) Sketch each of the following: 1.Given a discrete-time signal defined as and the values at other instants equal zero. a) y(n)-x(2-n (b) y(n) x(3n-4) (c) y(n)-x(n) Sketch each of the following:
4. Consider the discrete time signal x[n] = u[n-2] - u[n – 6] a. Plot the signal b. Find the Fourier Transform of x[n]
Determine the Discrete Time Fourier Transform (DTFT) of the following discrete-time signal. x[n]=n0.1" u(n) 1-0 1e112 0970.1e* 5) -0.12- e in 1-0.1e) C), ei (1+0.2e-in d) =-*+0.2e-10 e / +0.2012
Find the discrete-time Fourier transform of the signal x[n] given below. Is – uļng-u= [u]a
(a) Based on the following discrete-time signal x[n], [n] →n -2 -1 0 1 2 3 4 i. [5%] determine the Fourier transform (i.e., X(ein)) and sketch the magnitude spectrum. ii. [4%] Given the following signal Xp[n], which is the periodic version of x[n] with period 4. Derive the Fourier series coefficients of yn], i.e., {ax}. xp[n] -1 1 2 3 4 5 iii. [4%] Hence, derive the Fourier transform of ap[n], i.e., Xp(es"). iv. [5%] Based on the results...
Consider the signal x(n-õn-4] + 2õn-5] + õn_6]. (a) Find X(el the discrete-time Fourier transform of xin]. Write expressions for the magnitude and phase of X(elu), and sketch these functions (b) Find all values of N for which the N-point DFT is a set of real numbers (c) Can you find a three-point causal signal x1n i.e., x1In] 0 for n <0 and n > 2) for which the three-point DFT of x (n] is: xn[nl (ie, xiin] O for...
Please Answer the following questions ASAP. Thanks! Transformations of independent variable 1. A discrete time signal is shown below. Sketch and carefully label x [2n 1 and xl-nlul-n1. 2. A continuous time signal x(t) is shown below. Sketch and carefully label x(t-1) and x(-t)-x(t)u(-t x(t) Even and Odd 3. Sketch x()Ev(sin(5mt)u(-t))for-1ts1 . Sketch the even and odd parts of signal x[n] in problem 1. Transformations of independent variable 1. A discrete time signal is shown below. Sketch and carefully label...
(a) A discrete time signal is given as «[u]=%2+cos( ) u + 67 In + 2 cos N n+ pia + 4 cos 27 N n+ دام Determine the Fourier coefficient, ak , plot the magnitude, lakl and phase, Zak of the Fourier coefficient for the signal x[n]. (10 marks)
Question# 1 A discrete time signal xin] is showing in figure. Skethch and label each of the following signals a. . x[2n] ill. xin-116 [n-1] -3 4 -2 -1 1/2 -1