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4. The amplitude modulation signal is given by the following expression and is applied...
The output signal from an AM modulator is given by: Find: a) determine the modulating signal...
The output signal from an AM modulator is given by: Find: a) determine the modulating signal and the carrier signal, b) determine the modulation index, c) determine the ratio of power in the sidebands to the power in the carrier, d) determine the ratio of the sidebands' power to the total power.
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...
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...
1) Given that the frequency deviation constant &t is 5 kHz/volt, what is the required amplitude o...
1) Given that the frequency deviation constant &t is 5 kHz/volt, what is the required amplitude of the modulating signal such that Jo(β value of B for this case? Note in 2kHz. 0? What is the What are the values of the Bessel Coeficients when Jo(8-0 ? 1.e. the first five sidebands. Plot the spectrum assuming that the unmodulated carrier has an amplitude of 2V State Carson's rule for banaiwidth estimation What does it reduce to for NBFM and WBFM?...
Please show all the necessary steps to get the answers Answer Q5 A given DSB-LC transmitter...
Please show all the necessary steps to get the
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Q5 A given DSB-LC transmitter develops an unmodulated power output of 100W across a 50 ? resistive load. When a sinusoidal test tone with a peak amplitude of 5.0 V is applied to the input of the modulator, it is found that the average power output increases by 50% under these conditions. Determine (a) (b) (c) (d) (e) The average power output in each sideband. The modulation index. The...
3.14 The output signal from an AM modulator is 11 (1)-5 cos l 800π t +...
3.14 The output signal from an AM modulator is 11 (1)-5 cos l 800π t + 20 cos 2000π t + 5 cos 2200 π . 1. Determine the modulating signal m() and the carrier c (t) 2. Determine the modulation index. 3. Determine the ratio of the power in the sidebands to the power in the carrier.
A single-tone angle-modulated signal is given by ?(?) = 20cos[6 ∗ 108 ? + 40 sin(1000??)]...
A single-tone angle-modulated signal is given by ?(?) = 20cos[6 ∗ 108 ? + 40 sin(1000??)] Assume that the function is an FM signal. Determine (a) the unmodulated carrier frequency, (b) the modulating frequency, (c) the modulation index, and (d) the maximum frequency deviation. Express all frequencies in hertz. (e) Determine the average power dissipated in a 50Ω resistor
()=< a) Consider the case where a modulating tone v, a cos(2ft) is used in a...
()=< a) Consider the case where a modulating tone v, a cos(2ft) is used in a Double Side Band m Amplitude Modulation (DSC-AM) scheme whose varying with time carrier amplitude is [K+a cos(2ft Provide the equation of the modulated carrier signal v (t and then derive from that an expression that shows the spectral components of v (t). Furthermore provide the phasor representation of DSB-AM. Now consider the case of Double Side Band Suppressed carrier AM and provide both the...
BJTU Fall 2018 0 Problems 6-1 The amplitude of the modulated signal is 2.4V, the maximum...
BJTU Fall 2018 0 Problems 6-1 The amplitude of the modulated signal is 2.4V, the maximum frequency offset of the FM wave is 4.8kHz, and the modulation index of the PM wave is mp=5. (1)Try to find the FM index and PM index for the modulation frequency of 500Hz and 1kHz. (2) Assuming that the modulation frequency is 2 kHz, but the amplitude of the modulation signal is increased to 7.2 V, calculate the modulation index of the FM wave...
Let a modulated signal be: s(t)=100cos(2100st) +100cos(2000xt) + 100cos(1900xt) where unmodulated carrier is c(t)=100cos(2000xt) where the...
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...
A carrier signal c(?) = ? cos(??) is modulated by a single-tone signal ?(?) = ?...
A carrier signal c(?) = ? cos(??) is modulated by a single-tone signal ?(?) = ? ???(??) to form the AM signal: s(t)= [? + ????(??)]???(??), where ? = 10, ? = 2, ? = 1000 ??, ? = 50 ??. a- Obtain an expression for the sidebands of ?(?). b- Sketch ?(?) c- Sketch the spectra |?(?)|, |?(?)|, |?(?)| against f. d- Calculate the modulation index (m) e- What bandwidth is required to transmit the AM signal. f- Show...
The output signal from an AM modulator is given by: Find: a) determine the modulating signal and the carrier signal, b) determine the modulation index, c) determine the ratio of power in the sidebands to the power in the carrier, d) determine the ratio of the sidebands' power to the total power.
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...
1) Given that the frequency deviation constant &t is 5 kHz/volt, what is the required amplitude of the modulating signal such that Jo(β value of B for this case? Note in 2kHz. 0? What is the What are the values of the Bessel Coeficients when Jo(8-0 ? 1.e. the first five sidebands. Plot the spectrum assuming that the unmodulated carrier has an amplitude of 2V State Carson's rule for banaiwidth estimation What does it reduce to for NBFM and WBFM?...
Please show all the necessary steps to get the
answers
Answer
Q5 A given DSB-LC transmitter develops an unmodulated power output of 100W across a 50 ? resistive load. When a sinusoidal test tone with a peak amplitude of 5.0 V is applied to the input of the modulator, it is found that the average power output increases by 50% under these conditions. Determine (a) (b) (c) (d) (e) The average power output in each sideband. The modulation index. The...
3.14 The output signal from an AM modulator is 11 (1)-5 cos l 800π t + 20 cos 2000π t + 5 cos 2200 π . 1. Determine the modulating signal m() and the carrier c (t) 2. Determine the modulation index. 3. Determine the ratio of the power in the sidebands to the power in the carrier.
()=< a) Consider the case where a modulating tone v, a cos(2ft) is used in a Double Side Band m Amplitude Modulation (DSC-AM) scheme whose varying with time carrier amplitude is [K+a cos(2ft Provide the equation of the modulated carrier signal v (t and then derive from that an expression that shows the spectral components of v (t). Furthermore provide the phasor representation of DSB-AM. Now consider the case of Double Side Band Suppressed carrier AM and provide both the...
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...
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