Linear Filtering Methods Based on DFT MCQ

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• In which of the following methods, the output sequence is considered as shown in the below diagram?
  ক

  Overlap save method

  খ

  Overlap add method

  গ

  Overlap add & save method

  ঘ

  None of the mentioned
• In which of the following methods, the input sequence is considered as shown in the below diagram?
  ক

  Overlap save method

  খ

  Overlap add method

  গ

  Overlap add & save method

  ঘ

  None of the mentioned
• Which of the following is true in case of Overlap add method?
  ক

  M zeros are appended at last of each data block

  খ

  M zeros are appended at first of each data block

  গ

  M-1 zeros are appended at last of each data block

  ঘ

  M-1 zeros are appended at first of each data block
• In Overlap add method, what is the length of the input data block?
  ক

  L-1

  খ

  L

  গ

  L+1

  ঘ

  None of the mentioned
• The first M-1 values of the output sequence in every step of Overlap save method of filtering of long sequence are discarded.
  ক

  True

  খ

  False
• In Overlap save method of long sequence filtering, how many zeros are appended to the impulse response of the FIR filter?
  ক

  L+M

  খ

  L

  গ

  L+1

  ঘ

  L-1
• In Overlap save method of long sequence filtering, what is the length of the input sequence block?
  ক

  L+M+1

  খ

  L+M

  গ

  L+M-1

  ঘ

  None of the mentioned
• Overlap add and Overlap save are the two methods for linear FIR filtering a long sequence on a block-by-block basis using DFT.
  ক

  True

  খ

  False