EC 9203 SIGNALS AND SYSTEMS LECTURE NOTES | FOR ECE - III SEMESTER |
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UNIT I CLASSIFICATION OF SIGNALS AND SYSTEMS
Continuous time signals (CT signals)- Discrete time signals (DT signals) – Step,
Ramp, Pulse, Impulse, Exponential, classification of CT and DT signals –periodic and
aperiodic signals, random signals, Energy & Power signals - CT systems and DT
systems, Classification of systems.
UNIT II ANALYSIS OF CONTINUOUS TIME SIGNALS
Fourier series analysis- spectrum of Continuous Time (CT) signals- Fourier and
Laplace Transforms in Signal Analysis.
UNIT III LINEAR TIME INVARIANT –CONTINUOUS TIME SYSTEMS
Differential Equation-Block diagram representation-impulse response, convolution
integrals-Fourier and Laplace transforms in Analysis- State variable equations and
matrix representation of systems.
UNIT IV ANALYSIS OF DISCRETE TIME SIGNALS
Baseband Sampling of CT signals- Aliasing, DTFT and properties, Z-transform &
UNIT V LINEAR TIME INVARIANT –DISCRETE TIME SYSTEMS
Difference Equations-Block diagram representation-Impulse response-Convolution
sum- DTFT and Z Transform analysis of Recursive & Non-Recursive systems- State
variable equations and matrix representation of systems.