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Test: FIR Filters Design Comparison


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10 Questions MCQ Test Signals and Systems | Test: FIR Filters Design Comparison

Test: FIR Filters Design Comparison for Electrical Engineering (EE) 2022 is part of Signals and Systems preparation. The Test: FIR Filters Design Comparison questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: FIR Filters Design Comparison MCQs are made for Electrical Engineering (EE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: FIR Filters Design Comparison below.
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Test: FIR Filters Design Comparison - Question 1

Which of the following is the first method proposed for design of FIR filters?

Detailed Solution for Test: FIR Filters Design Comparison - Question 1

Explanation: The design method based on the use of windows to truncate the impulse response h(n) and obtaining the desired spectral shaping, was the first method proposed for designing linear phase FIR filters.

Test: FIR Filters Design Comparison - Question 2

The lack of precise control of cutoff frequencies is a disadvantage of which of the following designs?

Detailed Solution for Test: FIR Filters Design Comparison - Question 2

Explanation: The major disadvantage of the window design method is the lack of precise control of the critical frequencies.

Test: FIR Filters Design Comparison - Question 3

 The values of cutoff frequencies in general depend on which of the following?

Detailed Solution for Test: FIR Filters Design Comparison - Question 3

Explanation: The values of the cutoff frequencies of a filter in general by windowing technique depend on the type of the filter and the length of the filter.

Test: FIR Filters Design Comparison - Question 4

 In frequency sampling method, transition band is a multiple of which of the following?

Detailed Solution for Test: FIR Filters Design Comparison - Question 4

Explanation: In the frequency sampling technique, the transition band is a multiple of 2π/M.

Test: FIR Filters Design Comparison - Question 5

The frequency sampling design method is attractive when the FIR filter is realized in the frequency domain by means of the DFT. 

Detailed Solution for Test: FIR Filters Design Comparison - Question 5

Explanation: Frequency sampling design method is particularly attractive when the FIR is realized either in the frequency domain by means of the DFT or in any of the frequency sampling realizations.

Test: FIR Filters Design Comparison - Question 6

Which of the following values can a frequency response take in frequency sampling technique?

Detailed Solution for Test: FIR Filters Design Comparison - Question 6

Explanation: The attractive feature of the frequency sampling design is that the frequency response can take either zero or one at all frequencies, except in the transition band.

Test: FIR Filters Design Comparison - Question 7

 Which of the following technique is more preferable for design of linear phase FIR filter?

Detailed Solution for Test: FIR Filters Design Comparison - Question 7

Explanation: The chebyshev approximation method provides total control of the filter specifications, and as a consequence, it is usually preferable over the other two methods.

Test: FIR Filters Design Comparison - Question 8

By optimal filter design, the maximum side lobe level is minimized.

Detailed Solution for Test: FIR Filters Design Comparison - Question 8

Explanation: By spreading the approximation error over the pass band and stop band of the filter, this method results in an optimal filter design and using this the maximum side lobe level is minimized.

Test: FIR Filters Design Comparison - Question 9

Which of the following is the correct expression for transition band Δf?

Detailed Solution for Test: FIR Filters Design Comparison - Question 9

Explanation: The expression for Δf i.e., for the transition band is given as
Δf=(ωs- ωp)/2π.

Test: FIR Filters Design Comparison - Question 10

If the resulting δ exceeds the specified δ2, then the length can be increased until we obtain a side lobe level that meets the specification.

Detailed Solution for Test: FIR Filters Design Comparison - Question 10

Explanation: The estimate is used to carry out the design and if the resulting δ exceeds the specified δ2, then the length can be increased until we obtain a side lobe level that meets the specification.

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