timediscrete
Timediscrete refers to systems, signals, or processes that exist or are defined only at discrete time instants, typically t = nT, where n is an integer and T>0 is the sampling period. In this view, signals are sequences x[n] rather than continuous functions x(t). Timediscrete models can arise by sampling a continuous-time signal or from inherently discrete processes such as digital control, computer simulations, or event-driven systems.
Discrete-time linear time-invariant (LTI) systems are commonly described by difference equations or by impulse response. A
Analysis of discrete-time systems often uses the Z-transform, H(z) = Y(z)/X(z) = sum h[n] z^{-n}, with a region
Sampling and aliasing are central for time-discrete models derived from continuous signals. If a continuous signal
Applications include digital signal processing, where discrete-time signals are filtered and analyzed; digital control, where controllers