No. of Pages:2

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

FIRST SEMESTER M.TECH DEGREE EXAMmATION,

DECEMBER 2017
Branch: ELECTRICAL & ELECTRONICS ENGINEERING

Stream: POWER CONTROL & DRIVES
Course Code & Name: ೦1೯೯6503 ADVANCED SIGNAL PROCESSING

Answer any twofull questions from each part Limit

answers to the required points.

Max. Marks: 60 Duration: 3 hours

PARTA

1. ೩ Find the circular convolution of the following sequences using DFT and IDFT
method: x(n) = {1! 2 1) and h(n) = ॥ 2 3 4} (8 marks)
b. Find the system function and the impulse response of the system described by the
difference equation: y(n) = x(n) + മന്ന — |) —4x(n— 2) + x(n— 3) (2 marks)
2. a. Determine the Z transform including the region of convergence for each of the

following using their properties:

(1) x(n) = na"u(n)(ii)x(n) = na 10८7) (4 marks)

b. Determine the inverse Z transform ofthe following:
z(z? - 42 + 5)

X(z) ಅರ ತ
(2-3(2-1(2-2 ROCs: i) ii) 12)3 प) 20 (6 marks)

x(n) = (11 1100 0 0} (6 marks)