The frequency bandwidth of the signal 4. cos 1000x1+ sin 2000 is: L The frequency bandwidth...
Question 4: (20 points) An FM signal is modulated with message m(t)Am cos(2Tmt). The measured amplitude spectrum, SPM(f), is shown below: Amplitude spectrum of the frequency modulated signal 2 -2 5000 4000 3000 2000 -1000 1000 2000 3000 4000 5000 frequency f [Hz] a) What is the carrier frequency fe? b) What is the message frequency fm c) What is the FM modulation index Bf? Is it a narrowband or a wideband signal? d) Using Carson's rule, estimate the transmission...
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...
1. [20 points] An angle modulated signal is given as d(1-8 cos(wl + 2 sin (5000π1)) with carrier frequency 1 MHz (a) Find the power of the modulated signal (b) Find the frequency deviation and the phase deviation (c) Find the bandwidth of the modulated signal (d) Repeat the above parts when the signal is ф(1) : 7 cos(wct + 10 sin( 1300nt) + 12 cos(6000t))
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....
Consider frequency modulation with a sinusoidal message signal (tone modulation) m(t) = a cos(2πfmt). The modulated signal is: vFM(t) = Ac cos[2πfct + βf sin(2πfmt)]. with βf = kfa/fm being the modulation index. What is the bandwidth of the modulated signal.
Consider frequency modulation with a sinusoidal message signal (tone modulation) m(t) = a cos(2πfmt). The modulated signal is: vFM(t) = Ac cos[2πfct + βf sin(2πfmt)]. with βf = kfa/fm being the modulation index. What is the bandwidth of the modulated signal.
For a lowpass signal with a bandwidth of 6000 Hz, what is the minimum sampling frequency for perfect reconstruction of the signal? What is the minimum required sampling frequency if a guard band of 2000 Hz is required? What is the minimum required sampling frequency and the value of K for perfect reconstruction if the nstruction filter has the following frequency response lfl 7000 K-Kino 7000, 0, H(f) = 7000 < lfl < 10000) otherwise
18. Given the message signal m(t) = sin(3000nt) + cos(10,000nt), kf= 250,000n and kp= 20. a. Estimate the bandwidth of the FM modulated signal 0 b. Estimate the bandwidth of the PM modulated signal 0
Q2 Consider a communication signal x(t) described by the following mathematical expression: x(t)=2 cos(2000) + 4 sin? (2000) – 2+4rec(t)cos(6000mt) Analyse the communication signal x(t) then consider the following: (i) Determine the Fourier transform of the signal x(t). (ii) Plot the double-sided amplitude spectrum of the signal x(t).
QUESTION 4 For the signal m(t) = 3 cos(1200nt) + Scos(1500ft) and the carrier frequency fc = 20 KHz 1. Find SSB/USB in time domain and 2. Sketch the Spectrum of SSB/USB (frequency domain) 3. Find the bandwidth of the SSB/USB Arial24191) TE STEMME