Discrete Linear Systems Functions (Simulation Module)
Owning Palette: Simulation VIs and Functions
Use the Discrete Linear Systems functions to represent discrete linear systems of difference equations on the simulation diagram.
The functions on this palette can return general LabVIEW error codes or specific Simulation Module error codes. LabVIEW sends any error that the functions on this palette return to the Error output on the Output Node of the Simulation Loop.
| Palette Object | Description |
|---|---|
| Detect Zero Crossing | Detects a zero crossing according to the trigger type you specify. A zero crossing occurs when the input signal you specify crosses the x-axis. |
| Discrete Filter | Computes an Infinite Impulse Response (IIR) filter or Finite Impulse Response (FIR) filter with forward and backward coefficients. The Numerator and Denominator parameters define these coefficients. |
| Discrete First-Order Hold | Extrapolates the value of the output signal based on the first derivative of the input signal. |
| Discrete Integrator | Integrates the input using forward rectangular (Euler) integration, backward rectangular (Euler) integration, or trapezoidal integration. |
| Discrete State-Space | Implements a system model in discrete state-space form. You define the system model by specifying the input, output, state, and direct transmission matrices. |
| Discrete Transfer Function | Implements a system model in discrete transfer function form. You define the system model by specifying the Numerator and Denominator of the transfer function equation. |
| Discrete Unit Delay | Delays the input by the value that you specify for the sample period (sec) of this function. |
| Discrete Zero-Order Hold | Holds the input signal for a definite period of time equal to the value you specify for the sample period (sec) parameter of this function. Use this function to discretize or resample an input signal. |
| Discrete Zero-Pole-Gain | Implements a system model in discrete zero-pole-gain form. You define the system model by specifying the Zeros, Poles, and Gain of the zero-pole-gain equation. |
Resources
- Developing Custom Measurement and Control I/O Hardware with the LabVIEW 8 FPGA Module and - NI Developer Zone
- NI CompactRIO – Reconfigurable Control and Acquisition System- Developer Zone - NI Developer Zone
- Using LabVIEW for Rapid Control Prototyping and Hardware-in-the-Loop Simulation- Developer Zone - - NI Developer Zone