DSP QUIZ 1.4

What is the relationship between DFT and DTFT?

• DFT is a special case of DTFT
• DTFT is a special case of DFT
• DFT and DTFT are completely different
• DFT and DTFT are not related

Which property of the DFT is described by the equation X[k]=X*[-k]?

• Symmetry
• Periodicity
• Circular Convolution
• None of the above

What is circular convolution in the context of DFT?

• A mathematical operation on two signals
• A way of transforming a signal from time domain to frequency domain
• A way of combining two signals in frequency domain
• A way of transforming a signal from frequency domain to time domain

What is the relationship between the length of the input signal and the length of the output signal in DFT?

• Length of the output signal is longer than the input signal
• Length of the output signal is equal to the input signal
• Length of the output signal is shorter than the input signal
• None of the above

Which property of the DFT can be represented by X[k]=X[N-k]?

• Symmetry
• Periodicity
• Circular Convolution
• None of the above