how to find phase modulated signal and frequency modulated signal and write it down in terms...
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...
The sinusoidal modulating wave is applied to a phase modulator with phase sensitivity kp. The unmodulated carrier wave has frequency fc and amplitude Ac. a) Determine the spectrum of the resulting phase-modulated signal, assuming that the maximum phase deviationP4es not exceed 0.3 radians. b) Construct a phasor diagram for this modulated signal, and compare it with that of the corresponding narrow-band FM signal. The sinusoidal modulating wave is applied to a phase modulator with phase sensitivity kp. The unmodulated carrier...
Let a modulated signal be: s(t)=100cos(2100st) +100cos(2000xt) + 100cos(1900xt) where unmodulated carrier is c(t)=100cos(2000xt) where the carrier amplitude is Ac=100V and the carrier frequency is fc=1000Hz (6=2000m). a. Find the complex envelope g(t) for the modulated signal. b. Whaktype of modulation is involved? What is the modulating signal m(t)? c. Evaluate and draw the Power Spectral Density P.) of the modulated signal. d. Find the average (normalized) power P for this modulated signal. e. Evaluate the actual Peak Envelope Power...
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...
Select the correct statement regarding the difference between the FM modulated signal waveform and the AM modulated signal waveform. a. The FM signal wave changes frequency according to the message wave m(t). The "peak" amplitude of the FM signal, Ac=5, remains constant. b. There is no difference between the FM and AM signal waves because they are both modulated by the same message wave, m(t) = Amcos(2πfmt) c. The AM signal wave frequency changes with the message wave m(t) while...
A frequency modulated signal with central frequency 1MHz is described by the following equation: y0 = 10 cos(2ex107+0.1 sin 2000xt). a. Find the maximum frequency deviation. [3 marks] b. Find the maximum phase deviation. [3 marks] c. Calculate the frequency modulation index. [3 marks] d. Calculate the phase modulation index. [3 marks) e. Calculate the power of the modulated signal. [4 marks) f. How many significant side bands that have power larger than -40dB? [4 marks)
In a coherent detection process, a sinusoidally modulated DSB-SC wave, s(t) = c(t)m(t) where the carrier wave is c(t) =Accos(2πfct) and the message signal is m(t) = Amcos(2πfmt), is applied to a product modulator using a locally generated sinusoid of Ac’ amplitude and is out of phase by φ with respect to the sinusoidal carrier used in the modulation. (a) Draw the block diagram of the coherent detection process and label the block diagram with the information provided above accordingly....
An angle-modulated signal with carrier frequency fc-10s is described by the following equation: PEM (t) = 10cos(wct + 5sin(3000t) + 10sin(2000nt)) Find the power of the modulated signal. 100 С 25 O225 O 50
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...
Assume that an AM transmitter is modulated with a video testing signal given by em(t) = =20 + 60 sin (2πf1t), where f1 = 3.57 MHz. Let the carrier signal c(t) = Ac cos(2πfct), where Ac = 100 and fc = 100 MHz. The AM signal is fed into a 50-Ω load. (a) Derive an expression for the AM DSB-FC signal in time domain. (b) Construct the AM waveform, giving numerical values of the maximum amplitude, Amax and the minimum...