1. What are the advantages of sampling analog signals?
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Q: What is signal conditioning? Give an example of how this is used in analog to digital conversion.
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Q: What is AVR?
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Q: be the Sampling PCM system is 60000HZ and the maximum number that represents cach sample is 15?
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Q: Explain any two signal processing in the measurement system with neat diagrams.
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Q: what is the advantage of a quadrature encoder over non quadrature encoder(single output)?
A: Advantage of quadrature encoder over non quadrature encoder
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Q: How could a binary-weighted DAC operate with BCD input? Explain.
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Q: Explain the analog to digital conversion process using digital technique employing sample and hold…
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Q: you reduce the sampling frequency of a digital audio signal, what do you expect to hear when you…
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- 1. a) An analog signal contains frequencies up to 12 kHz. (i) What range of sampling frequencies dose allow exact reconstruction of this signal from its samples? (ii) Suppose that we sample this signal with a sampling frequency Fs = 9 kHz. Examine with proper diagram what happens to the frequency component F1 = 6 kHz after passing through the digital to analog converter. (iii) Repeat part (ii) for a frequency component F2 = 11 kHz. b) Why is it necessary to introduce an analog low-pass filter before analog to digital converter? Illustrate the fact with necessary diagram.4. Signal conditioning element basically takes the output of the sensing element and converts it into a form more suitable for further processing, usually in the form of a DC voltage, DC current or variable frequency AC voltage. The output of the sensing element is usually too small to operate an indicator or a recorder. Therefore, it is suitably processed and modified in the signal conditioning element so as to obtain the output in the desired form that is amplify the signal and filtering the unwanted signal. i. Describe the aliasing phenomenon. ii. Suggest a solution to minimize the effect of aliasing.1. What are the advantages of sampling analog signals?
- What is the physical meaning of sampling theorem? And Write down the corresponding expressions for low-pass analog signals and band pass analog signals. What happens if the sampling theorem is not satisfied when sampling an analog signal?Identify the given statement. FM and PM demodulators can actually reduce noise and increase the signal-to-noise ratio during the demodulation process by using limiters. This is known as the capture effect. Select your answer. The statement has no fixed information. The statement is false. The statement is true. The statement is a case-to-case basis.1) For purposes of measuring length, the human torso was a convenient tool, and gave us units of---------? A) Meter. B) cm. C) foot. D) mm. 2)---------the output signal consists of a proportion of the external voltage source applied across the two ends of the potentiometer. A) Null-type, B) deflection-type ,C) passive instrument „D) active instrument. 3) The prerequisite for the reduction of systematic errors is a complete analysis of the----? A) Measurement system, B) systematic errors, C) System disturbance, D) Errors. 4) The extent to which series mode noise corrupts measurement signals is measured by a quantity known as--- A) noise ratio , B)Dual signal-to-noise ratio , C) A&B , D) signal-to-noise ratio . 5) Sometimes used to provide shielding from capacitive-coupled noise, but the necessary supports for the conduit provide multiple earth points and lead to the problem of-------? A) Shielding, B) Multiple earth, C) Earth loops, D) Noise.
- B- An rate. analog signal having single frequency as 3 kHz is sampled with 5 kHz S Describe its frequency spectrum. What will be the output if the sampled signals a passed through a low-pass filter having cutoff frequency at 2.5 kHz? signal. are sent in the analogWhat is the minimum sampling rate needed in order to successfully capture frequencies up to 80MHz in an analog signal?2. Sampling frequency is one of the important elements in signal processing. Describe the meaning of a sampling frequency using a sketch if possible. Why is it important to set the sampling rate higher than the maximum frequency measured?
- This is a question from communication lab.Please let me know what is anwer? 1)The unwanted components at the output of the mixer are:a) the local oscillator frequency and the RF frequency.b) the sum and difference frequencies.c )the local oscillator frequency, the RF frequency and the sum of thelocal oscillator and RF frequencies.d) audio information signals.I'm designing a mixer in Qucs. What does input frequency range and input voltage swing mean? Is it the AC voltage source's frequency and peak voltage?Explain any two signal processing in the measurement system with neat diagrams.