B Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
M.Tech 51 (R,S) Exam Dec 2020

Cluster: Kollam
Specialisation: Communication Systems

02EC6221 ADVANCED DIGITAL SIGNAL PROCESSING
Time: 3 Hrs Max. Marks: 60

Instructions: Answer All Questions from Part 4.
Answer Two Full questions from Part B.

PARTA

1. Describe the sampling locations in the case of rectangular geometry in tl —t2 plane.

Obtain the equations that forms the basis of 2D sampling theorem

2. Obtain the 2-D convolution of the following input sequence and its kernel.

11 -1 1

Tl
7 7 7 _]
3 5 கு 0
೨ 5 4 1

INPUT KERNEL

3. Explain with relevant figures how the window of wavelets is adaptive to frequency

variations. State the advantage of wavelets over STFT.

4. Prove that the interchange of the cascades of the below shown downsampler and the

upsampler are not equal.

(4 x 9=36)