1- Signal m(t) is shown in Figure 1. This signal is used once to frequency modulate a carrier and once to phase modulate the same carrier. a) Find a relation between kp and k such that the maximu...
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FM spectrum: A message signal m(t) (shown below) is used to modulate a carrier with frequency (fc) in a FM system with kr 90, find and plot the FM signal s(t) in both time and frequency domains. Use the value of fc-1000. m(t) (V) 3.5 t (ms) 250 [Note that m(t) is zero for t<0 and t>250 ms
FM spectrum: A message signal m(t) (shown below) is used to modulate a carrier with frequency (fc) in a...
Find the instantaneous frequency of the next signal at t = 4. (a) x(t) = 10 cos[20xt+10 sin(t/4)) (b) x(t) = 262719) () X(t)=10[cos(2nt) cos(atº/4) + sin(24t) sin( nt/ 4)] Suppose that the information signal is as shown in the following figure. When each modulating this signal using 100KHz as the carrier frequency, find the frequency shift and phase shift when FM is modulated with 5,=10. What is the maximum frequency shift and maximum phase shift? 0.5+ -0.5 ost Suppose...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f are kf = 105, kp-25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown...
below is used to modulate a carrier to generate the AM signal yt) (Am()) cos(1000t) The periodic signal m() shown a) The power efficiency of the system is measured to be 1 () The type of AM modulation, i.e. SSB, DSBSC, (i) The constant A. (ili) The modulation index 1/13. Determine DSB with carrier enit -3 b) An angle modulated signal is given by d(t-2 cos (2n1061+ sin 2 1000). Find i) The carrier frequency. ii) The baseband signal bandwidth....
5. Consider the following message signal: -2 Assume that the carrier frequency is f are kr 105, kp 25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown in the above...
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5. A msg m(t) that is used too modulate a carrier and frequency (fc) is 1500 in a FM system. Kf is 80. Plot the FM signal in time AND frequency domain using Matlab. The signal is shown below, m(t) is zero for t>250ms and t<0 ms. m(t) (V) Half Sinusoid 3.5 t (ms) 250
5. A msg m(t) that is used too modulate a carrier and frequency (fc) is 1500 in a FM system. Kf is...
5. (15 pts) Consider the baseband signal m(t) and determine the instantaneous frequency range min (fmax) of the PM modulated signal. Assume kp-10π and the carrier frequency is c100 MHz. -1
Find he 20 200 114 pts) Problem 6) A phase-modulated signal is denoted by the following equation: (a) Find the power of the modulated signal. (b) Find the carrier frequency fe (c) Find the frequency deviation Δ. (d) Find the deviation ratio B (e) Find the phase deviation A (t Estimate the bandwidth of pptt). (g) Knowing that the k, of the frequency modulator equal to 2n, what will the FM representation of this signal be if the FM modulator...
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sgn(t) and unmodulated carrier cos(wct), draw the output of unmodulate 3. a. For the message signal m(t)-2sgn(t) phase modulator with m(t) (k/4) cos(o t b. For the message signal m(t)--2sgn(t) and unmodulated carrier cos(wet ) shown above where ue-207, draw the output of frequency modulator with m(t) (k-10n)
sgn(t) and unmodulated carrier cos(wct), draw the output of unmodulate 3. a. For the message signal m(t)-2sgn(t) phase modulator with m(t) (k/4) cos(o t b. For the message signal...
5.1-2. A baseband signal m(t) is the periodic sawtooth signal shown in Fig. P5.1-2. (a) Sketch rm (1) and pM () for this signal m(t) if we = 270 x 100, ky = 2000, and kp = 1/2 (b) Show that the PM signal is equivalent to a PM signal modulated by a rectangular periodic message. Explain why it is necessary to use kp < in this case. [Note that the PM signal has a constant frequency but has phase...