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 ph...
2. A 3 KHz sinusoidal signal Phase Modulates a carrier at 245.3 MHz. The modulating tone has an amplitude of 4 volts and the phase sensitivity of the modulator is 0.5 radians/volt. a. (15 points) Evaluate the required transmission bandwidth using Carson's Rule. b. (15 points) If the resulting PM signal is passed through an IBPF with bandwidth given by Carson's Rule (plus a few Hz), what percentage of the signal power is lost?
Calculate the following parameters for a Phase Modulator which has a carrier frequency of 10 kHz and a modulating data rate of 3 kHz: Modulating data time period: Baud rate: Upper sideband: Lower sideband: Bandwidth: Use the Labview circuit to verify the calculations Explain any observations and discrepancies. Use Labview to build a Phase Modulator. The sinusoidal carrier signal should be adjustable up to 12 kHz and the amplitude adjustable to 5 volts, using a “simulate signal” express vi. The...
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4. The amplitude modulation signal is given by the following expression and is applied to 75 load. Vam(t) = 10 sin (21fct) - 2.5 cos (1500krt) + 2.5 cos (1450krt) V Determine: a) Modulation index b) The frequency of the carrier and the information signal c) The bandwidth d) The total power e) The transmission power efficiency be ar e 5. One of the inputs to a frequency modulator is a 250 kHz carrier signal with amplitude of...
A sinusoidal carrier wave has an amplitude of 5 volts, a frequency of 1MHz, and zero phase angle. Select the correct carrier wave equation. a. c(t) = 1E6 cos(2π*5*t) b. c(t) = 5 cos(2π*1E6*t) c. c(t) = 5 cos(π*2E6*t) d. either b or c Given the following parameters, select the correct equation for the amplitude modulated (AM) carrier signal. Am=2.5v, Ac=3v, fm=3500Hz, fc=120kHz, φm=0, φc=0 a. s(t) = 7[1+1.08 cos(2π3500t)] cos(2π100E3t) b. s(t) = 2.5[1+0.83 cos(2π3500t)] cos(2π100E3t) c. s(t) =...