Official Bihar Engineering University examination question papers, marks distribution, and questions transcript. Available exam sessions: 2025, 2024, 2021.
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Official BEU curriculum units & topics for this examination subject.
Unit 1.0: Discrete and Fast Fourier Transform (8 hrs.)
The discrete Fourier transform (DFT) • Sampling of the discrete time Fourier transform • Properties of the DFT • Linear convolution using the DFT • Fourier analysis of the signals using the DFT • Direct computation of the DFT • Decimation-in-time FFT algorithms • Decimation-in-frequency FFT algorithm
Unit 2.0: Design of FIR Filters (6 hrs.)
FIR filters with linear phase • Design of FIR filters by windowing and frequency sampling • Design of some special FIR filters • Real Time Implementation of FIR filters
Unit 3.0: Design of IIR Filters (8 hrs.)
Introduction to IIR filter design • Design of continuous time low pass filters • Butterworth, Chebyshev and Elliptic Approximations • Transformation of continuous time filters to discrete time filters • Design examples for low pass IIR filters • Frequency transformations of low pass filters
Unit 4.0: Realisation of Digital Filters (6 hrs.)
FIR filter structures: direct form, cascade form, linear-phase form, FIR Lattice structure • IIR filter structures: direct form-I, direct form-II, cascade form, parallel form • All pole lattice structure • Lattice-ladder (pole-zero) lattice structure
Unit 5.0: Multirate Signal Processing (8 hrs.)
Sampling rate conversion • Implementation of Multirate systems • Filter design for Multirate systems • Design of FIR Digital filters: Window method, Park-McClellan’s method • Design of IIR Digital Filters: Low-pass, Band-pass, Band-stop and High pass filters • Effect of finite register length in FIR filter design • Parametric and non-parametric spectral estimation • Introduction to multi-rate signal processing