## EC6502  DSP Important Questions

Anna University Regulation 2013 ECE EC6502  DSP Important Questions for all 5 units are provided below. Download link for ECE 5th SEM EC6502  PRINCIPLES OF DIGITAL SIGNAL PROCESSING Answer Key is listed down for students to make perfect utilization and score maximum marks with our study materials.

### EC6502  DSP Important Questions

#### PART – A

1. Obtain the circular convolution of the following sequences x(n) = {1,2,1}; h(n) ={1, -2, 2}

2. How many multiplications and additions are required to compute N –point DFT using radix – 2 FFT?

3. Define DFT and IDFT?

4. State the advantages of FFT over DFTs?

5. What is meant by bit reversal?

6. Distinguish between DFT and DTFT?

7. What is zero padding? What are its uses?

8. Determine the number of multiplications required in the computation of 8 – point DFT using FFT? 9. What is twiddle factor?

10. How many stages of decimations are required in the case of a 64 point radix 2 DIT FFT algorithm?

11. Find the 4 – point DFT sequence x(n) = {1, 1, -1, -1}.

12. What is meant by in – place computation?

13. What are the differences and similarities between DIT and DIF?

14. Distinguish between linear convolution and circular convolution?

15. What are the differences between Overlap – add and Overlap – save method?

16. State the properties of DFT?

17. Draw the basic butterfly diagram for the computation in the decimation in frequency FFT algorithm and explain?

18. How will you perform linear convolution using circular convolution? 19. Find the circular convolution of x(n) = {1,2,3,4} with h(n) = {1,1,2,2}? 20. State Parseval’s relation with respect to DFT?

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Anna University 5th SEM ECE DSP Important Questions