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2003 Course Digital Signal Processing (Elective II)

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Total No. of Questions :12] P1067 [Total No. of Pages : 3 [3864]-235 B.E. (Electrical) DIGITAL SIGNAL PROCESSING (2003 Course) (Elective - II) (Sem. - II) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) 2) 3) 4) 5) 6) Answer any three questions from each section. Answers to the two sections should be written in separate books. Neat diagrams must be drawn wherever necessary. Figures to the right indicate full marks. Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. Assume suitable data, if necessary. SECTION - I Q1) a) Explain the following terms related to discrete signals. i) Energy and power signals. ii) Periodic and non-periodic signals. iii) Even and odd signals. b) Determine auto-correlation of following signal. i) x(n) = 2n for -3 n 0. ii) x(n) = n2 for 0 n 3. Q2) a) OR Explain the following terms related to discrete time system. i) [9] [9] Shift invariant and shift variant system. ii) [9] Causal and non-causal systems. iii) Stable and unstable system. P.T.O.

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