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For a decimation-in-time FFT algorithm, which of the following is true?
  • a)
    Both input and output are in order
  • b)
    Both input and output are shuffled
  • c)
    Input is shuffled and output is in order
  • d)
    Input is in order and output is shuffled
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
For a decimation-in-time FFT algorithm, which of the following is true...
In a decimation-in-time Fast Fourier Transform (FFT) algorithm, the input sequence is typically shuffled or rearranged before performing the FFT computation. This rearrangement is done to ensure efficient computation and to exploit the symmetry properties of the FFT algorithm.
The input sequence is typically shuffled using a bit-reversal permutation. This permutation swaps the positions of the elements in the input sequence according to their binary representations in reverse order. The shuffling is done to group the input samples in a way that simplifies the computation of the FFT.
After the FFT computation, the output sequence is typically in the order of increasing frequency components, also known as "in order". This means that the output sequence will be arranged from low frequencies to high frequencies.
Therefore, in a decimation-in-time FFT algorithm, the input is shuffled (option C) using a bit-reversal permutation, and the output is in order (not shuffled) based on frequency components.
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For a decimation-in-time FFT algorithm, which of the following is true?a)Both input and output are in orderb)Both input and output are shuffledc)Input is shuffled and output is in orderd)Input is in order and output is shuffledCorrect answer is option 'C'. Can you explain this answer?
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For a decimation-in-time FFT algorithm, which of the following is true?a)Both input and output are in orderb)Both input and output are shuffledc)Input is shuffled and output is in orderd)Input is in order and output is shuffledCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about For a decimation-in-time FFT algorithm, which of the following is true?a)Both input and output are in orderb)Both input and output are shuffledc)Input is shuffled and output is in orderd)Input is in order and output is shuffledCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a decimation-in-time FFT algorithm, which of the following is true?a)Both input and output are in orderb)Both input and output are shuffledc)Input is shuffled and output is in orderd)Input is in order and output is shuffledCorrect answer is option 'C'. Can you explain this answer?.
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