Please solve problem 4.5-2 ( a,b, and c) and be clear when you write by your hand.
l us shoWn in Hz. Fig. P4.5-1. The carrier frequency is fe 10 kHz and the baseband signal bandwidth is 4k Find the corresponding transfer function of the equalizer filter Ho) shown in the receiver Fig. 4.21. Hint: Use Eq. (4.25). Figure P.4.5-1 H,(o) 0 9 10 11 12 14 f kHz 4.5-2 Consider a VSB amplitude modulation system. The baseband signal is an audio signal of band- width 4 kHz. The carrier frequency is 1500 kHz. Suppose that the transmission vestigial filter Hi(f) has a (symmetric) frequency response as shown in Figure P4.5-42 (a) Design and illustrate a receiver system block diagram. (b) Find the bandwidth of this transmission (e) Describe and sketch the necessary equalizer filter response Hof) for distortionless reception 4.5-3 A transmitter must send a multimedia signal m(t) with bandwidth of 400 kHz. Its assigned bandwidth is [2.3 MHz, 2.8 MHz]. As shown in the transmitter diagram of Figure P4.5-3, this is achieved by an ideal BPF bandpass filter Hrf) at the transmitter
Homework Answers
Add Answer to:
Please solve problem 4.5-2 ( a,b, and c) and be clear when you write by your hand.
4.5-1 A vestigial filter H; (f) shown in the transmitter of Fig. 4.21 has a transfer...
4.5-1 A vestigial filter H; (f) shown in the transmitter of Fig. 4.21 has a transfer function as shown in Fig. P4.5-1. The carrier frequency is fc = 10 kHz and the baseband signal bandwidth is 4 kHz. Find the corresponding transfer function of the equalizer filter Ho(f) shown in the receiver of Fig. 4.21. Hint: Use Eq. (4.25). --- Figure P.4.5-1 HO 0 ON 10 11 12 14 f kHz
Prob. 5 (a) Consider the FM signal with modulation index B 2 is passed through an ideal band-pass...
Prob. 5 (a) Consider the FM signal with modulation index B 2 is passed through an ideal band-pass filter (BPF) with mid-band frequency f and bandwidth 5f. where f is the carrier frequency and fmis the frequency of the baseband modulating signal (i) Sketch the spectrum of the BPF output. (ii) Determine the fraction of the power of the FM signal that is present at the output of the filter (b) Consider the FM signal given by фFM (t)-100 cos...
8 8.6-4 For a DSB-SC system with a channel noise PSD of Sn() 10-12 and a baseband signal of bandw...
8 8.6-4 For a DSB-SC system with a channel noise PSD of Sn() 10-12 and a baseband signal of bandwidth 5 kHz, the receiver output SNR is required to be at least 47 dB. The receiver is as shown in Fig. 8.30. (a) What must be the signal power Si received at the receiver input? (b) What is the receiver output noise power No? (c) What is the minimum transmitted power Sr if the channel transfer function is He)10-3 over...
Assignment 2. Multiple choice assignment. Check the right answer. 5 points each answer 1. The USA...
Assignment 2. Multiple choice assignment. Check the right answer. 5 points each answer 1. The USA FM radio broadcasting utilizes the frequency band A. 0.665 MHz-1.6 MHz B. 80 MHz - 100 MHz C. 88 MHz 108 MHz 2. The pre-emphasis is generally used A. to improve the demodulator performance in the presence of noise in the received signal B. to improve the modulator performance C. to improve the stereophonic effect 3. The intermediate frequency of FM superheterodyne receiver is...
Please do Part 4 and Show all work! 1. 145 points) <FM/FSK Modulation/Demodulations A periodic wave m(t) in Figure 1 below The resulting FM signal is demodulated as shown in the following figure b...
Please do Part 4 and Show all work!
1. 145 points) <FM/FSK Modulation/Demodulations A periodic wave m(t) in Figure 1 below The resulting FM signal is demodulated as shown in the following figure by using frequency discriminator. Assume no attenuation of the signal due to propagation loss (in other words assume amplifiers properly restored the amplitude of the transmitted signal at the receiver) [10 points] Find the Fourier Series (trigonometric Fourier Series) of the message signal m (t) where To...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has a center frequency of exactly 1950.000000 MHz, assuming that the receiver is traveling at speeds of: (a) 1 km/hr; (b) 5 km/hr; (C) 100 km/hr; and (d) 1000 km/hr. 5.5 Given that the coherence bandwidth is approximated by Equation (5-39), show that a flat fading channel occurs when T, 2 10 04. Hint: Note that B is an RF bandwidth, and assume that Ts...
2. (14 points) This problem shows an example of using the Fourier transform to analyze communicat...
2. (14 points) This problem shows an example of using the Fourier transform to analyze communication systems. The system in Figure 4, where (t)-f(t)+sin(wt) and has been proposed for amplitude modulation. f(t) + sin(o) Figure 4: System proposed for amplitude modulation. (a) (7 points) The spectrum of the input f(t) is shown in Figure 1, where 2mB o/100. Sketch and label the spectrum Y(w) of the signal y(t). Hint: You will need to use the frequency convolution property of the...
can you please solve this problem step by step, thank you!! 1. Consider a DSB-SC signal...
can you please solve this problem step by step, thank
you!!
1. Consider a DSB-SC signal with noise passes through a demodulator shown below. ViC0) 2(0) но но 0) The input signal plus noise is v,(t)-5,() + n'(t) where 5,0): Am(1)cos2r/rt, m(1) cos 2π/J is the message signal with f-</м , carrier frequency is f> fe , and noise n' (r) has power spectral density function G,じ)= η . The local carrier is v,(1)s 2 cosZrw. The carrier filter is...
When the message signal m (t) =cos (2π fmt) and the carrier signal is c(t)=cos (2π fct) , fm<&...
When the message signal m (t) =cos (2π fmt) and the
carrier signal is c(t)=cos (2π fct) ,
fm<< fc,
The modulated DSB-SC signal
SDSB-SC=m(t)cos(2πfct) is generated, and only
the upper sideband
To generate and transmit the SSB signal. As shown in the figure
below, the receiver is a local oscillator
cosine signal to the received signal and passes it through a
low-pass filter. Answer the following questions.
(a) Draw the waveform of DSB-SC modulated signal
SDSB-SC(t）
(b)Find the result...
4.5-1 A vestigial filter H; (f) shown in the transmitter of Fig. 4.21 has a transfer function as shown in Fig. P4.5-1. The carrier frequency is fc = 10 kHz and the baseband signal bandwidth is 4 kHz. Find the corresponding transfer function of the equalizer filter Ho(f) shown in the receiver of Fig. 4.21. Hint: Use Eq. (4.25). --- Figure P.4.5-1 HO 0 ON 10 11 12 14 f kHz
Prob. 5 (a) Consider the FM signal with modulation index B 2 is passed through an ideal band-pass filter (BPF) with mid-band frequency f and bandwidth 5f. where f is the carrier frequency and fmis the frequency of the baseband modulating signal (i) Sketch the spectrum of the BPF output. (ii) Determine the fraction of the power of the FM signal that is present at the output of the filter (b) Consider the FM signal given by фFM (t)-100 cos...
8 8.6-4 For a DSB-SC system with a channel noise PSD of Sn() 10-12 and a baseband signal of bandwidth 5 kHz, the receiver output SNR is required to be at least 47 dB. The receiver is as shown in Fig. 8.30. (a) What must be the signal power Si received at the receiver input? (b) What is the receiver output noise power No? (c) What is the minimum transmitted power Sr if the channel transfer function is He)10-3 over...
Assignment 2. Multiple choice assignment. Check the right answer. 5 points each answer 1. The USA FM radio broadcasting utilizes the frequency band A. 0.665 MHz-1.6 MHz B. 80 MHz - 100 MHz C. 88 MHz 108 MHz 2. The pre-emphasis is generally used A. to improve the demodulator performance in the presence of noise in the received signal B. to improve the modulator performance C. to improve the stereophonic effect 3. The intermediate frequency of FM superheterodyne receiver is...
Please do Part 4 and Show all work!
1. 145 points) <FM/FSK Modulation/Demodulations A periodic wave m(t) in Figure 1 below The resulting FM signal is demodulated as shown in the following figure by using frequency discriminator. Assume no attenuation of the signal due to propagation loss (in other words assume amplifiers properly restored the amplitude of the transmitted signal at the receiver) [10 points] Find the Fourier Series (trigonometric Fourier Series) of the message signal m (t) where To...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has a center frequency of exactly 1950.000000 MHz, assuming that the receiver is traveling at speeds of: (a) 1 km/hr; (b) 5 km/hr; (C) 100 km/hr; and (d) 1000 km/hr. 5.5 Given that the coherence bandwidth is approximated by Equation (5-39), show that a flat fading channel occurs when T, 2 10 04. Hint: Note that B is an RF bandwidth, and assume that Ts...
2. (14 points) This problem shows an example of using the Fourier transform to analyze communication systems. The system in Figure 4, where (t)-f(t)+sin(wt) and has been proposed for amplitude modulation. f(t) + sin(o) Figure 4: System proposed for amplitude modulation. (a) (7 points) The spectrum of the input f(t) is shown in Figure 1, where 2mB o/100. Sketch and label the spectrum Y(w) of the signal y(t). Hint: You will need to use the frequency convolution property of the...
can you please solve this problem step by step, thank
you!!
1. Consider a DSB-SC signal with noise passes through a demodulator shown below. ViC0) 2(0) но но 0) The input signal plus noise is v,(t)-5,() + n'(t) where 5,0): Am(1)cos2r/rt, m(1) cos 2π/J is the message signal with f-</м , carrier frequency is f> fe , and noise n' (r) has power spectral density function G,じ)= η . The local carrier is v,(1)s 2 cosZrw. The carrier filter is...
When the message signal m (t) =cos (2π fmt) and the
carrier signal is c(t)=cos (2π fct) ,
fm<< fc,
The modulated DSB-SC signal
SDSB-SC=m(t)cos(2πfct) is generated, and only
the upper sideband
To generate and transmit the SSB signal. As shown in the figure
below, the receiver is a local oscillator
cosine signal to the received signal and passes it through a
low-pass filter. Answer the following questions.
(a) Draw the waveform of DSB-SC modulated signal
SDSB-SC(t）
(b)Find the result...
Most questions answered within 3 hours.
-
The moment of inertia of a disk rotating about its axis of
symmetry is Icm=1/2MR^2
The...
asked 49 seconds ago -
When using a relational database what makes data
formatting so important and critical to the functions...
asked 11 minutes ago -
The following temperatures show the (fictional) daily low
measured at O'Hare airport every January 1st from...
asked 31 minutes ago -
Your friend is interested in the characteristics of fast tree
planters. He searched through the records...
asked 38 minutes ago -
. 0.67 g of Ag is deposited electrolytically from
AgNO3 after a certain period of time...
asked 39 minutes ago -
assuming that the boric acid, h3po3 present at the end of the
borax tritation has a...
asked 39 minutes ago -
When a carbonate solution is acidified, carbon dioxide is
produced.
2H+(aq) + CO32-(aq) → H2O(l) +...
asked 1 hour ago -
A reaction has the following rate law: Rate =
kr[A][B]2. In experiment 1, the
concentrations of...
asked 1 hour ago -
king owns a large number of public pay phones. as rhe use of
payphones decline deamatically,...
asked 1 hour ago -
3.7 - A book is sitting on a table. The mass of the book
is 1...
asked 1 hour ago -
Which term describes the process by which a single strand of DNA
serves as a template...
asked 1 hour ago -
LAB FOOD DRING
ANSWER THE QUESTIONS:
Q1. What value is the moisture content versus time and...
asked 1 hour ago