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.
Module 1: Discrete-time signals and systems (6 hours)
Discrete time signals and systems: Sequences; representation of signals on orthogonal basis • Representation of discrete systems using difference equations • Sampling and reconstruction of signals aliasing; Sampling theorem and Nyquist rate
Module 2: Z-transform (6 hours)
z-Transform, Region of Convergence • Analysis of Linear Shift Invariant systems using z-transform • Properties of z-transform for causal signals • Interpretation of stability in z-domain, Inverse z-transforms
Module 3: Discrete Fourier Transform (10 hours)
Frequency Domain Analysis, Discrete Fourier Transform (DFT) • Properties of DFT, Convolution of signals • Fast Fourier Transform Algorithm • Parseval's Identity, Implementation of Discrete Time Systems
Module 4: Design of Digital filters (12 hours)
Design of FIR Digital filters: Window method, Park-McClellan's method • Design of IIR Digital Filters: Butterworth, Chebyshev and Elliptic Approximations • 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
Module 5: Applications of Digital Signal Processing (6 hours)
Correlation Functions and Power Spectra • Stationary Processes • Optimal filtering using ARMA Model • Linear Mean-Square Estimation, Wiener Filter