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A baseband signal has frequency components from de to 20 kHz. Determine (a) the theoretical minimum...
2. Question: A baseband signal has a bandwidth B = 10 kHz. The carrier frequency is...
2. Question: A baseband signal has a bandwidth B = 10 kHz. The carrier frequency is ae = 2x 106 f the DSB-SC signal. T. Find the Nyquist frequency and Nyquist interval 0 of
8.4 Mixers 8.21* An AM signal is transmitted on an 800-kHz carrier. The baseband frequency range...
8.4 Mixers 8.21* An AM signal is transmitted on an 800-kHz carrier. The baseband frequency range extends from 100 Hz to 5 kHz. This signal is to be detected by a superheterodyne receiver with a 55-kHz intermediate frequency. (a) What is the frequency of the local oscillator? (b) What must be the Q of the IF stages if the 1-dB points are to correspond to the maximum and minimum frequencies of the IF signal?
question 2 Question 2: (10 points) A narrowband signal has a bandwidth of 8 kHz centered on a carrier frequency of 150 kHz. It is proposed to represent this signal in discrete-time form by samplin...
question 2
Question 2: (10 points) A narrowband signal has a bandwidth of 8 kHz centered on a carrier frequency of 150 kHz. It is proposed to represent this signal in discrete-time form by sampling its in-phase and quadr ature components individually. What is the minimum sampling rate that can be used for this representation? tify you Jus answer. How would you reconstruct the original narrowband sig ampled versions of its in-phase and quadrature components?
Question 2: (10 points) A...
Q7) A frequency of 46 kHz is higher than the normal audible range of 20 Hz to 20 kHz for a human ...
Q7) A frequency of 46 kHz is higher than the normal audible range of 20 Hz to 20 kHz for a human being. Consider a continuous-time signal x(t) - cos(2mfot) where fo 46 kHz. Sample the signal using a sampling rate of fs 48 kHz. A) Derive a formula for the discrete-time signal x[n] that results from sampling x (t) B) Using only analysis of x[n] in the discrete-time domain, determine the discrete-time frequency to which the continuous-time frequency of...
1. An analog signal \(\mathrm{x}(\mathrm{t})\) contains frequencies from 0 up to \(10 \mathrm{kHz}\). You can assume...
1. An analog signal \(\mathrm{x}(\mathrm{t})\) contains frequencies from 0 up to \(10 \mathrm{kHz}\). You can assume any arbitrary spectrum for this signal. (Note that this signals also has frequencies from 0 to \(-10 \mathrm{KHz} .)\) a) Draw the frequency spectrum of the signal after it has been sampled with a sampling frequency \(\mathrm{F}_{\mathrm{s}}=25 \mathrm{kHz}\) b) What range of sampling frequencies allows exact reconstruction of this signal from its samples? c) How is the original signal reconstructed from the sampled signal?...
6. A signal from a sensor has its largest amplitude component at 3 kHz frequency. A...
6. A signal from a sensor has its largest amplitude component at 3 kHz frequency. A co-worker of yours said he sampled the signal with a data acquisition device at 5 kHz, and analyzed the frequency components of the sampled signal. He said that the largest amplitude component was not at 3 kHz. a. What frequency do you expect that your co-worker saw as the largest amplitude component in the sampled frequency spectrum? b. What could your co-worker have done...
12. The analog telephone line has maximum frequency 4 KHz. Analog telephone signal converted to digital....
12. The analog telephone line has maximum frequency 4 KHz. Analog telephone signal converted to digital. Which sampling frequency (sampling rate ) Analog - to- Digital (AD) converter must have ? At least KHz 13. Which of the following computer architecture is "IBM-compatible PC“? a) x86-64 b) Apple c) ARMv7 d) ARMv8 14. Ir Computer manual describes CPU as: "Intel Core i7, 3.4 GHz". then 3.4 GHz is a) CPU Clock frequency b) Memory bus frequency e) Frequency of the...
The following periodic signal is input to an ideal low pass filter of bandwidth 25 KHz. 1. x(t) 2...
The following periodic signal is input to an ideal low pass filter of bandwidth 25 KHz. 1. x(t) 2 a) Determine the average power of the signal x(t). b) If T 0.1 ms, give the output of the filter as a function of time, y(t) e) Determine the average power of the signal y(t) d) Determine the bandwidth of the signal y(), considered as a baseband signal. e) Now assume that the signal x() (with T-0.1 ms) is instead input...
My real-world signal has frequency components that extend into the MHz range, however I am most...
My real-world signal has frequency components that extend into the MHz range, however I am most interested in a signal that occurs near 100 kHz. Also, my AtoD has a max sampling rate of 1 MHz. What type of analog filter will I apply to this signal to avoid aliasing? Can you recommend a particular filter design, knowing that I am more interested in spectral content than a time-domain analysis?
Q2.) Consider the sampling of the continuous-time signal x(t) to obtain a discrete-time signal x[...
Q2.) Consider the sampling of the continuous-time signal x(t) to obtain a discrete-time signal x[n (1)-10cos(1000m + π/3) + 20cos(2000m + π/6). 110points! ], where x a) What is the maximum sampling interval (minimum sampling frequency) that could be used to ensure an aliasing free sampling of this signal? b) Plot the spectrum of the sampled signal if x() is sampled using a sampling frequency of (i) 2500 Hz (ii) 1800 Hz and state whether there will be an aliasing...
2. Question: A baseband signal has a bandwidth B = 10 kHz. The carrier frequency is ae = 2x 106 f the DSB-SC signal. T. Find the Nyquist frequency and Nyquist interval 0 of
question 2
Question 2: (10 points) A narrowband signal has a bandwidth of 8 kHz centered on a carrier frequency of 150 kHz. It is proposed to represent this signal in discrete-time form by sampling its in-phase and quadr ature components individually. What is the minimum sampling rate that can be used for this representation? tify you Jus answer. How would you reconstruct the original narrowband sig ampled versions of its in-phase and quadrature components?
Question 2: (10 points) A...
Q7) A frequency of 46 kHz is higher than the normal audible range of 20 Hz to 20 kHz for a human being. Consider a continuous-time signal x(t) - cos(2mfot) where fo 46 kHz. Sample the signal using a sampling rate of fs 48 kHz. A) Derive a formula for the discrete-time signal x[n] that results from sampling x (t) B) Using only analysis of x[n] in the discrete-time domain, determine the discrete-time frequency to which the continuous-time frequency of...
6. A signal from a sensor has its largest amplitude component at 3 kHz frequency. A co-worker of yours said he sampled the signal with a data acquisition device at 5 kHz, and analyzed the frequency components of the sampled signal. He said that the largest amplitude component was not at 3 kHz. a. What frequency do you expect that your co-worker saw as the largest amplitude component in the sampled frequency spectrum? b. What could your co-worker have done...
12. The analog telephone line has maximum frequency 4 KHz. Analog telephone signal converted to digital. Which sampling frequency (sampling rate ) Analog - to- Digital (AD) converter must have ? At least KHz 13. Which of the following computer architecture is "IBM-compatible PC“? a) x86-64 b) Apple c) ARMv7 d) ARMv8 14. Ir Computer manual describes CPU as: "Intel Core i7, 3.4 GHz". then 3.4 GHz is a) CPU Clock frequency b) Memory bus frequency e) Frequency of the...
The following periodic signal is input to an ideal low pass filter of bandwidth 25 KHz. 1. x(t) 2 a) Determine the average power of the signal x(t). b) If T 0.1 ms, give the output of the filter as a function of time, y(t) e) Determine the average power of the signal y(t) d) Determine the bandwidth of the signal y(), considered as a baseband signal. e) Now assume that the signal x() (with T-0.1 ms) is instead input...
Q2.) Consider the sampling of the continuous-time signal x(t) to obtain a discrete-time signal x[n (1)-10cos(1000m + π/3) + 20cos(2000m + π/6). 110points! ], where x a) What is the maximum sampling interval (minimum sampling frequency) that could be used to ensure an aliasing free sampling of this signal? b) Plot the spectrum of the sampled signal if x() is sampled using a sampling frequency of (i) 2500 Hz (ii) 1800 Hz and state whether there will be an aliasing...
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