For the signal g(t) shown in the following figure: a. Sketch the signals: 4. i) g(20)...
Discrete System question 9.3. The signals in Figure P9.2 are zero except as shown. (a) For the signal x,[n] of Figure P9.2(a), plot the following (i) 2 3n] (iii) 3x1n-2] (v) 12x-2n (ii 2xn (iv) 3- aIn (vi) 2 -n]-4 (b) Repeat part (a) for the signal xb[n] of Figure P9.2(b). (c) Repeat part (a) for the signal xn of Figure P9.2(c). (d) Repeat part (a) for the signal xn of Figure P9.2(d) 484 Discrete-Time Signals and Systems Chap. S...
Signal x(t) is given in the figure below. Using this information, sketch the following signals (MATLAB is not required) 5 4 1 0 2345 a) x(t 3) b) x(t +3) c) x(2t +3)
Kindly provide calculation and show each step. Thanks (a) Given the signal x(t) in Figure 2, sketch the signal for: xit) 12 10 - 2- 0.2 0.4 0.6 2 14 1.6 1.8 2 0.8 Figure 2 i. x(t+2) [4 Marks] ii. x(t/3) [4 Marks] iii. x(2t) [4 Marks] iv. -X(t) [4 Marks] (b) Given the signal x(t) in Figure 3, sketch the signal for x-(2t-2): xit 25 2 1.5 1 0.5 -0.5 0.5 1 1.5 2 2.5 3.5 Figure 3...
PROBLEMS 2.1. The signals in Figure P2.1 are zero except as shown. (a) For the signal x(t) of Figure P2.1(a). plot (ii) x(3 + t) Verify your results by checking at least two points. (iv) x(2 ) x(o) 0 x(t) x(0) -9 0 18 Figure P2.1
What are the absolute bandwidths of the signals shown in Problem 4(a) above? (Note: Absolute BW= highest frequency component present in a signal). What is the null-null bandwidth of the waveform in Problem 4(a) - (iii)? What is the 3 dB bandwidth of x(t) = -2e-4tu(t)? Write down an equation to find the 3 dB bandwidth of a filter with transfer function and then solve it to find its 3-dB bandwidth: H(s) = (+2)(+3). -4. Please use a Table of...
(a) Given the following signals: z(t) = { ={ex? exp(-kt) t> 0 0 t<0 sin(Ot) g(t) = **(t) art (i) Explain what the symbol * means in this context and write down the expression for the function y(t). (ii) Compute the energy of the signal x(t) in the time domain. (iii) Using the formulae 1 F[2(t)]() = k + 2ris F(II(t)](s) = sinc(s) It > 1/2 II(t) It < 1/2 sin(TTS) sinc(s) ITS compute the energy of the signal y(t)...
2. Consider a periodic signal shown below (20 points) i(t) -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 (a) Find the fundamental period of this signal. (b) Consider following two signals, xi(t) and x2(t), obtained from the above signal, find their corresponding Fourier transforms: xi(t) -1 0 1 *2 (1) Its of, 0 1 2 3 4 5
2.3-3 For the signal g(t) shown in Fig. P2.3-3, sketch (a) g(t - 4); (b) 8 (3): (c) g(21-4): (d) (2-1). Hint Recall that replacing t with 1-T delays the signal by T. Thus, g (2 - 4) is 8(21) with replaced by : - 2. Similarly, 8 (2-1) is g(-1) with / replaced by:- 2. Figure P.2.3-3
7. [20 points] Two signals mi(t) and m2(t) shown in the figure below have to be transmitted simul taneously over a channel by multiplexing. The signal at point b is the multiplexed signal, which modulates a carrier of frequency 20 kHz. The modulated signal at point c is then transmitted over the channel. (a) Sketch the spectra of the signals at points a, b and e An Mar) 42 2 cos(20, 000mt) (b) What must be the bandwidth of the...
JU Q1. Sketch the following SIGNALS and determine for each whether it is: Periodic or aperiodic. If periodic, • Even, odd, or neither. If it is neither, specify To. decompose it into even part Ev{x} Energy signal, power signal, or and odd part Od{x} and sketch them. neither. Find the total energy E. and average power PC- 12 -1<n<1 (a) xa n] = lo otherwise (b) xo(t) = xy(t) + x2(t), where x,(t) and x2(t) are the signals shown below:...