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PES Institute of Technology, Bangalore(Autonomous Institute under VTU, Belgaum)TE305 -Lab

SEMESTER END EXAMINATION (SEE) B. E. 5th SEMESTER Dec. 2011TE305 Digital Signal Processing Laboratory Quiz V7

Time: 30 mins Max Marks: 25

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Answer All questions. Q1 to Q8 carries 2 marks each. Q9 to Q11 carries 3 marks each

Q1What is the function of MATLAB command filter(B, A, X)?

Q2Define the Gibbs phenomenon.

Q3What is prewarping?

Q4Mention the operations performed in computing N point circular convolution.

Q5What is cross-correlation? Explain how cross correlation of two sequences can be obtained using convolution

Q6How many multiplications and additions are involved in radix 2 FFT?

Q7Differentiate between IIR and FIR filter

Q8What is the use of windowing in digital filters?

Q9Write a c function to find the IDFT of a given sequence

Q10Write a MATLAB function to find the linear convolution of two sequences without the use of fft() and ifft() functions.

Q11Write a MATLAB function to find the impulse response of a given system

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