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2003 Course Advanced Digital Signal Processing

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Total No. of Questions : 12] P1150 [Total No. of Pages : 2 [3864] - 267 B.E. (E & T/C) ADVANCED DIGITAL SIGNAL PROCESSING (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any three questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. SECTION - I Q1) Explain the LMS Algorithm. [17] OR Q2) Explain the concept of Adaptive filters with the help of NOISE can celler. Derive the necessary equation. [17] Q3) a) b) Explain forward and backward linear prediction. [8] Explain AR, MA and ARMA. [8] OR Q4) Explain the Levinson Durbin Algorithm and derive the necessary equations. [16] Q5) a) b) What is power spectrum Estimation? What are limitations of traditional methods. [8] Explain the periodogram method. [9] OR P.T.O. Q6) a) b) Explain the welch method and Blackman-Tukey method. Explain the modern parametric estimation methods. [8] [9] SECTION - II Q7) a) b) Q8) a) b) Explain multirate DSP? Where is it used? State and explain the application areas where multirate DSP is used. [10] Differentiate between Decimation and Interpolation. [7] OR Explain Decimation with the help of a block diagram. [9] Explain sampling rate conversion by Non Integers. [8] Q9) Explain the following terms w.r.t DSP architecture. a) Harward Architecture b) Pipelining c) Fixed point d) Floating point. [16] OR Q10)Explain with Algorithm and diagram how will you implement FFT algorithm [16] using a DSP processor. Q11)Explain the following terms w.r.t speech processing: a) Vowels b) Diphthongs c) Semi vowels d) Nasals e) Unvoiced fricatives f) Voiced fricatives [17] OR Q12)What do you understand by the terms: a) Cepstrum b) Pitch detection c) Formant d) Vocoders. jjj [3864]-267 2 [17]

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