# EE6403 Discrete Time Systems and Signal Processing Previous Year Question Papers

EE6403 Discrete Time Systems and Signal Processing Previous Year Question Papers

B.E – Electrical and Electronics Engineering, Second Year 4th Semester EE6403 Discrete Time Systems and Signal Processing Previous Year Question Papers For The Regulation 2013.

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OBJECTIVES:
• To classify signals and systems & their mathematical representation.
• To analyze the discrete time systems.
• To study various transformation techniques & their computation.
• To study about filters and their design for digital implementation.
• To study about a programmable digital signal processor & quantization effects.
UNIT I – INTRODUCTION
Classification of systems: Continuous, discrete, linear, causal, stable, 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 II – 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 TimeFourier transform , magnitude and phase representation.
UNIT III – 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 IV – 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 – mWarping, pre-warping.
UNIT V – DIGITAL SIGNAL PROCESSORS
Introduction – Architecture – Features – Addressing Formats – Functional modes – Introduction to Commercial DSProcessors.

## EE6403 Discrete Time Systems and Signal Processing Previous Year Question Papers for the Regulation 2013

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