Discrete

Discrete time function blocks such as Unit Delay

Blocks

Delay	Delay input signal by fixed or variable sample periods
Difference	Calculate change in signal over one time step
Discrete Derivative	Compute discrete-time derivative
Discrete FIR Filter	Model FIR filters
Discrete Filter	Model Infinite Impulse Response (IIR) filters
Discrete PID Controller	Discrete-time or continuous-time PID controller
Discrete PID Controller (2DOF)	Discrete-time or continuous-time two-degree-of-freedom PID controller
Discrete State-Space	Implement discrete state-space system
Discrete Transfer Fcn	Implement discrete transfer function
Discrete Zero-Pole	Model system defined by zeros and poles of discrete transfer function
Discrete-Time Integrator	Perform discrete-time integration or accumulation of signal
First-Order Hold (Obsolete)	Implement first-order sample-and-hold
内存	Output input from previous time step
Resettable Delay	Delay input signal by variable sample period and reset with external signal
Tapped Delay	Delay scalar signal multiple sample periods and output all delayed versions
Transfer Fcn First Order	Implement discrete-time first order transfer function
Transfer Fcn Lead or Lag	Implement discrete-time lead or lag compensator
Transfer Fcn Real Zero	Implement discrete-time transfer function that has real zero and no pole
Unit Delay	Delay signal one sample period
Variable Integer Delay	Delay input signal by variable sample period
Zero-Order Hold	Implement zero-order hold sample period