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Anna University · Regulation 2021

EC 3492 Digital Signal Processing question papers

EC3492 Digital Signal Processing previous year question papers from Anna University (Regulation 2021), with the full syllabus. Read online or download the PDF.

Fourth semester · Core · L T P C: 3 0 2 4

Question papers

Syllabus

  1. Unit 1: Discrete Fourier Transform9 hours

    Sampling Theorem · concept of frequency in discrete-time signals · summary of analysis & synthesis equations for FT & DTFT · frequency domain sampling · Discrete Fourier transform (DFT) · deriving DFT from DTFT · properties of DFT · periodicity · symmetry · circular convolution · Linear filtering using DFT · Filtering long data sequences · overlap save and overlap add method · Fast computation of DFT · Radix-2 Decimation-in-time (DIT) Fast Fourier transform (FFT) · Decimation-in-frequency (DIF) Fast Fourier transform (FFT) · Linear filtering using FFT

  2. Unit 2: Infinite Impulse Response Filters9 hours

    Characteristics of practical frequency selective filters · characteristics of commonly used analog filters · Butterworth filters · Chebyshev filters · Design of IIR filters from analog filters (LPF, HPF, BPF, BRF) · Approximation of derivatives · Impulse invariance method · Bilinear transformation · Frequency transformation in the analog domain · Structure of IIR filter · direct form I · direct form II · Cascade · parallel realizations

  3. Unit 3: Finite Impulse Response Filters9 hours

    Design of FIR filters · symmetric and Anti-symmetric FIR filters · design of linear phase FIR filters using Fourier series method · FIR filter design using windows (Rectangular, Hamming and Hanning window) · Frequency sampling method · FIR filter structures · linear phase structure · direct form realizations

  4. Unit 4: Finite Word Length Effects9 hours

    Fixed point and floating point number representation · ADC · quantization · truncation and rounding · quantization noise · input / output quantization · coefficient quantization error · product quantization error · overflow error · limit cycle oscillations due to product quantization and summation · scaling to prevent overflow

  5. Unit 5: DSP Applications9 hours

    Multirate signal processing: Decimation · Interpolation · Sampling rate conversion by a rational factor · Adaptive Filters: Introduction · Applications of adaptive filtering to equalization · DSP Architecture · Fixed and Floating point architecture principles