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Discrete Time Signals and Systems topics include: Discrete time systems, their analysis and implementation, discrete time signals, differential equations and the correlation of discrete time signals.
A discrete-time signal is a sequence of values that correspond to specific moments in time. A discrete-time system is a system that takes a discrete-time signal as input and generates a discrete-time signal as output.
Discrete-time signals can be classified as either periodic or aperiodic, which refers to whether the signal repeats itself. Discrete-time systems are signal processing entities that process discrete-time signals. Discrete-time signals are generally obtained as equidistant samples of continuous-time waveforms along the time axis. A system is defined mathematically as a unique operator or transformation that maps an input signal into an output signal. This is defined as y(n) = T[x(n)] where x(n) is input signal, y(n) is output signal, T[] is transformation that characterizes the system behavior.
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