Homework Answers
Bandwidth related rule is the Carson's rule that demonstrates that the both FM and PM require greater bandwidth than AM
Here FM indicates frequency modulation
PM indicates Phase modulation
AM indicates Amplitude modulation
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QUESTION 7 rule demonstrates that both FM and PM require greater bandwidth than AM Chaudhuri's ОА...
Question 4: (20 points) An FM signal is modulated with message m(t)Am cos(2Tmt). The measured amp...
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...
b) The figure below shows an FM demodulator. s'(t)Envelope detector Demodulated signal s(t) Differentiator Figure 4: Question 2(b) In the system above, the differentiator performs the time-differ...
b) The figure below shows an FM demodulator. s'(t)Envelope detector Demodulated signal s(t) Differentiator Figure 4: Question 2(b) In the system above, the differentiator performs the time-differentiation operation s'(t) = as(t). Also, the envelope detector is assumed to be ideal, capable of extracting the envelope of the incoming signal perfectly. Describe, by equations, how the above FM demodulator may exactly recover the message signal from the FM signal. (6%) (c) Is the FM demodulator in Question 2(b) a coherent detector,...
Question 1 In the shown block diagram, the missing block is an integrator m(1) SIA True...
Question 1 In the shown block diagram, the missing block is an integrator m(1) SIA True False AA Moving to another question will save this respo Question 2 The narrowband FM signal is expressed as: A(t) cos {2 11 ft+tan- '[kfa(t)}} True False Question 3 Given the message signal m(t) with peak value 2 and carrier signal 5 cos (108 11 t). If ky = x10, the value of (min equals 50.1 MHz O True False Question 4 The following...
Question 12 Consider that A is larger than B and both are positive numbers. B is...
Question 12 Consider that A is larger than B and both are positive numbers. B is larger than C and both are positive numbers. D is a negative number. What would the result of this formula be? =IF(B>A,A,IF(B>C,D,IF(C>D,A,C))) OD OC OA B
Question 9.10 Consider a perfectly competitive firm. When the market price is greater than both the...
Question 9.10 Consider a perfectly competitive firm. When the market price is greater than both the firm's marginal cost and average variable cost, the firm O A Is maximizing profits O BShould shut down O CShould increase its level of output O D Should reduce its level of output
can you please help with both? I am so stuck. It would be much appreciated Question...
can you please help with both?
I am so stuck. It would be much appreciated
Question 5 Estimate the integral by Simpson's rule using n=6. a) 0.7000 b) O0.500 c) O 0.3500 d) 0.2500 e) 0.8000 Review Late! Question 6 Estimate the integral = x3 + 4 dx by Simpson's rule using n= 8. a) O 0.9361 b) O 1.0212 c) O 0.7659 d) 0.851 e) 0.6808 Review Later
ID Question 9 1 pts If the concentration inside a cell is 5 times greater than...
ID Question 9 1 pts If the concentration inside a cell is 5 times greater than the surrounding solution, then C. Water will diffuse into the cell. B. The solution's concentration is hypertonic to the cell's concentration. A. The solution's concentration is hypotonic to the cell's concentration. Q D. both A and C
Can you explain in detail how to do this question? I am completely stuck 5. Which...
Can you explain in detail how to do this question? I am completely
stuck
5. Which aqueous salt would result in a solution pH greater than 7? e) NaNO3 a) Na(CH,COO) b) d) KCI b) CoCl3 c) NH4Br Na CH2o0
I am stuck with the last question, that what's the proportion of less than 160 cm...
I am stuck with the last
question, that what's the proportion of less than 160 cm ?
Problem 2.182, page 100. Do part (a). Ignore part (b) in the text, and continue with the following questions (b) Pick site A, what proportion of artifacts were less than 220 cm from the central hearth? c) What proportion of artifacts were greater that or equal to 60 cm from the central hearth? (d) What proportion of artifacts were in between 100 cm...
QUESTION 7 Refer to the accompanying figure. The equilibrium price is and the equilibrium quantity is...
QUESTION 7 Refer to the accompanying figure. The equilibrium price is and the equilibrium quantity is a. $4; 6 b.$6; 4 OC $2;8 d. $8; 6 QUESTION 8 The demand for a good is elastic if the price elasticity of demand is: a. equal to one b.equal to zero greater than one d.less than one QUESTION 9 If the price of textbooks increases by one percent and the quantity demanded falls by one-half percent, then demand for textbooks is: a....
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...
b) The figure below shows an FM demodulator. s'(t)Envelope detector Demodulated signal s(t) Differentiator Figure 4: Question 2(b) In the system above, the differentiator performs the time-differentiation operation s'(t) = as(t). Also, the envelope detector is assumed to be ideal, capable of extracting the envelope of the incoming signal perfectly. Describe, by equations, how the above FM demodulator may exactly recover the message signal from the FM signal. (6%) (c) Is the FM demodulator in Question 2(b) a coherent detector,...
Question 1 In the shown block diagram, the missing block is an integrator m(1) SIA True False AA Moving to another question will save this respo Question 2 The narrowband FM signal is expressed as: A(t) cos {2 11 ft+tan- '[kfa(t)}} True False Question 3 Given the message signal m(t) with peak value 2 and carrier signal 5 cos (108 11 t). If ky = x10, the value of (min equals 50.1 MHz O True False Question 4 The following...
Question 12 Consider that A is larger than B and both are positive numbers. B is larger than C and both are positive numbers. D is a negative number. What would the result of this formula be? =IF(B>A,A,IF(B>C,D,IF(C>D,A,C))) OD OC OA B
Question 9.10 Consider a perfectly competitive firm. When the market price is greater than both the firm's marginal cost and average variable cost, the firm O A Is maximizing profits O BShould shut down O CShould increase its level of output O D Should reduce its level of output
can you please help with both?
I am so stuck. It would be much appreciated
Question 5 Estimate the integral by Simpson's rule using n=6. a) 0.7000 b) O0.500 c) O 0.3500 d) 0.2500 e) 0.8000 Review Late! Question 6 Estimate the integral = x3 + 4 dx by Simpson's rule using n= 8. a) O 0.9361 b) O 1.0212 c) O 0.7659 d) 0.851 e) 0.6808 Review Later
ID Question 9 1 pts If the concentration inside a cell is 5 times greater than the surrounding solution, then C. Water will diffuse into the cell. B. The solution's concentration is hypertonic to the cell's concentration. A. The solution's concentration is hypotonic to the cell's concentration. Q D. both A and C
Can you explain in detail how to do this question? I am completely
stuck
5. Which aqueous salt would result in a solution pH greater than 7? e) NaNO3 a) Na(CH,COO) b) d) KCI b) CoCl3 c) NH4Br Na CH2o0
I am stuck with the last
question, that what's the proportion of less than 160 cm ?
Problem 2.182, page 100. Do part (a). Ignore part (b) in the text, and continue with the following questions (b) Pick site A, what proportion of artifacts were less than 220 cm from the central hearth? c) What proportion of artifacts were greater that or equal to 60 cm from the central hearth? (d) What proportion of artifacts were in between 100 cm...
QUESTION 7 Refer to the accompanying figure. The equilibrium price is and the equilibrium quantity is a. $4; 6 b.$6; 4 OC $2;8 d. $8; 6 QUESTION 8 The demand for a good is elastic if the price elasticity of demand is: a. equal to one b.equal to zero greater than one d.less than one QUESTION 9 If the price of textbooks increases by one percent and the quantity demanded falls by one-half percent, then demand for textbooks is: a....
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