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D) Briefly explain how wideband FM can be generated from narrow band FM and how the...
Design a narrow band FM modulator and demodulator units based on the following rules. By using...
Design a narrow band FM modulator and demodulator units based on the following rules. By using your design, assume that you are planning to broadcast music and listen to it. Design Principles 1. Bandwidth of the message signal is 4kHz. II. Carrier frequency is 50MHz III. Allowable maximum frequency deviation in the system is 50kHz. a) Determine the values of elements (if any; R. C, and L) used in the circuits. b) In case of noise (N. = 2x10-8W.Hz-1) added...
1. Consider the narrow-band FM wave approximately defined by Eq.(4.17). Do the following (a) Dete...
1. Consider the narrow-band FM wave approximately defined by Eq.(4.17). Do the following (a) Determine the envelope of this modulated wave. What is the ratio of the maximum to the minimum value of this envelope? (b) Determine the average power of the narrow-band FM wave, expressed as a percentage of the average power of the unmodulated carrier wave. (c) By expanding the angular argument of the narrow-band FM wave in the form ofa power series, and restricting the modulation index...
id) all of the above 11. How do you differentiate Narrowband FM and Wideband FM? Is...
id) all of the above 11. How do you differentiate Narrowband FM and Wideband FM? Is commercial FM broadcasting a wideband FM? 12. The AGC circuit controls (a) the output level of the receiver c) the input level to the detector circuit (c) the pain of the R and/or I stayes (d) all of the above
a. For the wideband FM signal given by SFM(t) = cos[2πfct+ 3sin2π25t]
a. For the wideband FM signal given by SFM(t) = cos[2πfct+ 3sin2π25t], draw only positive side of the spectrum, (from n=-5 to n=+5). Assume the carrier frequency (fc) of 1 KHz. Hint: First calculate β by comparing the signal with SFM(t) equation b. The FM signal of part (a) is passed through a bandpass filter centered at 1 KHz with a bandwidth of 210 Hz, as shown below. Draw the new spectrum and calculate the bandwidth and power of the filtered FM...
This problem is on the basics of FM using single tone message. As we that certain...
This problem is on the basics of FM using single tone message. As we that certain message tone is modulated by Frequency Modulator is written as s(t)r'. 4 Cos [ 2 π 2000 t + 4 Sin (2x 10001 (a) Caleulate the maximum frequency deviation dfin (Hz](3) Hint: identify the value of B and use relation with freq. deviation) (b) Is this Wideband FM or Narrow band FM? (2) (c) Calculate the required transmission bandwidth Brl㎐l using Carson's rule (2)...
Consider a narrow-band FM signal approximately defined by )A.coset-B,sin)sinff) 21, sm27,t)sin a) Determine the envelope of this modulated signal b) What is the ratio of the maximum to the minimum va...
Consider a narrow-band FM signal approximately defined by )A.coset-B,sin)sinff) 21, sm27,t)sin a) Determine the envelope of this modulated signal b) What is the ratio of the maximum to the minimum value of this envelope? Plot this ratio versus B, assuming Osps03. c) Determine the average power of the narrow-band FM signal, expressed as a percentage of the average power of the unmodulated carrier wave. Plot this result versus β, assuming 0 β 03.
Consider a narrow-band FM signal approximately defined...
) frequency modulatea100KHz carrier to produce the fl loo p narrowband FM signal: 120 pts PrBndt)...
find value of flo????
) frequency modulatea100KHz carrier to produce the fl loo p narrowband FM signal: 120 pts PrBndt) _ 5 cos (2a2. 10st + 0.0025 sin 2π 104t ) agram design) the wideband FM signal wrt) with carmer frequency of 100 MHz and a (peak) frequency deviation of So R Frequency Multipliers of any value following are available for the design Assume that the frequency can be tuned to any value between 200 나 A local oscillator whose...
a. In FM transmission circuits, explain the purpose and function of: i. Pre-emphasis and de-emphasis circuits....
a. In FM transmission circuits, explain the purpose and function of: i. Pre-emphasis and de-emphasis circuits. (CO1: PO1 - 3 Marks) ii. Limiter circuit. (CO1: P01 - 3 Marks) b. A sinusoidal carrier wave of frequency fe = 110 MHz is modulated by a modulating signal m(t). The characteristics of the modulating signal is illustrated in Figure Q2(b) and the Frequency Deviation Constant of the FM Modulator, kf = 107 Hz/volt. Determine the minimum bandwidth required for transmission of the...
Problem 5 (bonus): Explain how vestigial side band (VSB) modulated signal can be generated. Show in...
Problem 5 (bonus): Explain how vestigial side band (VSB) modulated signal can be generated. Show in table the advantages and disadvantages of the VSB modulation in comparison with the other modulation formats such as the full AM, the DSB-SC nd the SSB modulations.
1.) Angle Modulation can be subdivided into phase modulation (PM) and frequency modulation (FM). Highlight the...
1.) Angle Modulation can be subdivided into phase modulation (PM) and frequency modulation (FM). Highlight the differences between FM and PM. What is meant by the term instantaneous frequency? 2.) Describe what is meant by the term "Zero-Crossings" of a FM or PM wave. 3.) Is PM and/or FM a linear modulation technique? Explain. 4.) Describe one important advantage that angle modulation has over amplitude modulation. Describe one distinct disadvantage that angle modulation has over amplitude modulation. 5.) Describe the...
1. Consider the narrow-band FM wave approximately defined by Eq.(4.17). Do the following (a) Determine the envelope of this modulated wave. What is the ratio of the maximum to the minimum value of this envelope? (b) Determine the average power of the narrow-band FM wave, expressed as a percentage of the average power of the unmodulated carrier wave. (c) By expanding the angular argument of the narrow-band FM wave in the form ofa power series, and restricting the modulation index...
id) all of the above 11. How do you differentiate Narrowband FM and Wideband FM? Is commercial FM broadcasting a wideband FM? 12. The AGC circuit controls (a) the output level of the receiver c) the input level to the detector circuit (c) the pain of the R and/or I stayes (d) all of the above
This problem is on the basics of FM using single tone message. As we that certain message tone is modulated by Frequency Modulator is written as s(t)r'. 4 Cos [ 2 π 2000 t + 4 Sin (2x 10001 (a) Caleulate the maximum frequency deviation dfin (Hz](3) Hint: identify the value of B and use relation with freq. deviation) (b) Is this Wideband FM or Narrow band FM? (2) (c) Calculate the required transmission bandwidth Brl㎐l using Carson's rule (2)...
Consider a narrow-band FM signal approximately defined by )A.coset-B,sin)sinff) 21, sm27,t)sin a) Determine the envelope of this modulated signal b) What is the ratio of the maximum to the minimum value of this envelope? Plot this ratio versus B, assuming Osps03. c) Determine the average power of the narrow-band FM signal, expressed as a percentage of the average power of the unmodulated carrier wave. Plot this result versus β, assuming 0 β 03.
Consider a narrow-band FM signal approximately defined...
find value of flo????
) frequency modulatea100KHz carrier to produce the fl loo p narrowband FM signal: 120 pts PrBndt) _ 5 cos (2a2. 10st + 0.0025 sin 2π 104t ) agram design) the wideband FM signal wrt) with carmer frequency of 100 MHz and a (peak) frequency deviation of So R Frequency Multipliers of any value following are available for the design Assume that the frequency can be tuned to any value between 200 나 A local oscillator whose...
a. In FM transmission circuits, explain the purpose and function of: i. Pre-emphasis and de-emphasis circuits. (CO1: PO1 - 3 Marks) ii. Limiter circuit. (CO1: P01 - 3 Marks) b. A sinusoidal carrier wave of frequency fe = 110 MHz is modulated by a modulating signal m(t). The characteristics of the modulating signal is illustrated in Figure Q2(b) and the Frequency Deviation Constant of the FM Modulator, kf = 107 Hz/volt. Determine the minimum bandwidth required for transmission of the...
Problem 5 (bonus): Explain how vestigial side band (VSB) modulated signal can be generated. Show in table the advantages and disadvantages of the VSB modulation in comparison with the other modulation formats such as the full AM, the DSB-SC nd the SSB modulations.
1.) Angle Modulation can be subdivided into phase modulation (PM) and frequency modulation (FM). Highlight the differences between FM and PM. What is meant by the term instantaneous frequency? 2.) Describe what is meant by the term "Zero-Crossings" of a FM or PM wave. 3.) Is PM and/or FM a linear modulation technique? Explain. 4.) Describe one important advantage that angle modulation has over amplitude modulation. Describe one distinct disadvantage that angle modulation has over amplitude modulation. 5.) Describe the...
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