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is trans- 2. The rectangular signal z(t) = pz(t) = { | 1/2, -1<t<1 je mitted...
2+z-1 1. The Z-transform of a signal x[n] is given as X(z) = }</21 < a) Find the signal x[n] [7] b) Draw the pole – zero plot of the z-transform .[3] c) Is x[n] causal or not? Justify your answer [2]
Question 2 Consider the natural sampling applied to a signal, x(t) = sinc"5 The signal is sampled (multiplied) by a periodic (rectangular) pulse train which is shown in Figure (b). Assume the period, To-0.05s. πt as shown in Figure (a) Pr(t) x(t) XFO 057 Pt(t) 1 mark (a) Determine and sketch the spectrum of the signal x(t). Determine the bandwidth of x(t), B. 1 mark(b) Sketch the sampled signal, E(t) 2 marks () Derive and sketch the spectrum of the...
Consider the signal 2, defined for allt e Ras sin(at) 1<t<4 (t) 0 otherwise. Define the signal y as y(t) = x(4 – t) for allt ER For which value of t does (x+y)(t) assume its maximum value? 3 2 6 none of the other answers 4 0
1. The surface encircled by a rectangular loop of N turns on y=2 plane is defined by -1< x<3 and 0 <z<3. Magnetic field is given by B = (a, 2xt + â,4yt?) cos wt. Find the emf induced in the loop as a function of time (x,y, z are in meters; Ę is in mT; t is in seconds)
Consider a signal x(t) which is given as 1 x(t) - 2 <t<2 2 0, otherwise a) Sketch x(t) b) Sketch 3x(t – 1) c) Sketch – 2x(-t - 1) Identify all labels and amplitudes to get the whole score.
Find the Peano range of the
Cauchy problem.
Z=38
{r' = (2 = (Z -t)y,-3<t< 3; y(1) = 2
Consider the steady temperature T (2,y) in a rectangular plate that occupies 0 <<< 9 and 0 <y<5, which is heated at constant temperature 150 at 9 and 0 along its other three sides. (a) For separation solutions T(1,y) = F(x)G(y), you are given that admissible F(1) are the eigenfunctions Fn (1) = sinh(An I) for n=1,2,... and G(y) are the eigenfunctions Gn(y) = sin(Any) for n=1,2,... A for In = (b) The solution is the superposition T(z,y) = an...
Please explain your steps. I really don't
understand this.
Exercise 2. Consider the continuous-time signal x(t) = ejwot. Signal x(t) is sent to the input of a first LTI system (System 1) with frequency response Hi(jw) = e-jwA. Let A and wo be constant positive real values. Let y(t) be the output signal of System 1. Signal y(t) is then sent to the input of a second LTI system (System 2) with frequency response H2(jw) = w. Let z(t) be...
#19 all parts
Problems 17 through 19 deal with competitive systems much like those in Examples 1 and 2 except that some coefficients depend on a parameter a. In each of these problems, assume that x, y, and a are always nonnegative. In each of Problems 17 through 19: (a) Sketch the nullclines in the first quadrant, as in Figure 9.4.5. For different ranges of a your sketch may resemble different parts of Figure 9.4.5 (b) Find the critical points...
Consider the following signal t/2+1 -2 <t<0 2(t) = {-t/2+1 0<t<2 elsewhere a) Draw x() b) Draw y(t) = +(2(1 – t)) and show all the intermediate steps in your transformation.