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SYLLABUS

Unit-1:

Introduction Classification of systems: Continuous, Discrete, Linear, Causal, Stability, Dynamic, Recursive, Time variance; Classification of signals: Continuous and discrete, Energy and power; Mathematical representation of signals; Spectral density; Sampling techniques, Quantization, Quantization error, Nyquist rate, Aliasing effect.

Unit-2:

Discrete Time System Analysis Z-transform and its properties, Inverse Z-transforms; Difference equation – Solution by Z-transform, Application to discrete systems - Stability analysis, Frequency response – Convolution – Discrete time Fourier transform, Magnitude and phase representation.

Unit-3:

Discrete Fourier Transform & Computation Discrete Fourier Transform - Properties, Magnitude and phase representation - Computation of DFT using FFT algorithm – DIT &DIF using radix 2 FFT – Butterfly structure.

Unit-4:

Design of Digital Filters FIR & IIR filter realization – Parallel & cascade forms. FIR design: Windowing techniques – Need and choice of windows – Linear phase characteristics. Analog filter design – Butterworth and Chebyshev approximations; IIR Filters, Digital design using impulse invariant and bilinear transformation warping, Pre warping.

Unit-5:

Digital Signal Processors Introduction – Architecture – Features – Addressing Formats – Functional modes - Introduction to commercial DS processors.