Academic Company Events NI Developer Zone Support Solutions Products & Services Contact NI MyNI
2 ratings:
 3 out of 5     Rate this Document

Can I Simulate Discrete (z-Transfer Function) Models in LabVIEW?

Primary Software: LabVIEW Toolkits>>PID and Fuzzy Logic Toolkit
Primary Software Version: 6.0
Primary Software Fixed Version: N/A
Secondary Software: N/A

Problem: I want to simulate discrete (z-transfer function) models in LabVIEW. Are there any VIs available that perform this simulation?

Solution: Yes, LabVIEW's PID Control Toolkit includes the Discrete Transfer Function VI that can be used to perform this simulation. Discrete models are usually represented by


H(z) = a0+a1z + a2 z 2+ ...+ak z k/b0+b1z + b2 z 2+.. + bk z k

Where
  • a0+a1 + a2+ ...+ak are the coefficients of numerator
  • b0+b1 + b2+ ...+bk are the coefficients of denominator

    The Discrete Transfer Function VI calculates the new output when the transfer function, H(z), and the input point are given. If the PID Control Toolkit is installed, the Discrete Transfer Function VI is available on the Functions»Control»Advanced»Discrete Linear palette.

    To get more information about using PID Control Toolkit VIs to simulate physical systems, please refer to the links below.

    Related Links: LabVIEW PID Control Toolkit for Windows User Manual
    KnowledgeBase 30TI8LVS: Can I Simulate MIMO(Multi-Input Multi-Output) Models in LabVIEW?
    KnowledgeBase 31AFT3VS: Can I Simulate Zero-Pole Models in LabVIEW?


    Attachments:





    Report Date: 11/08/2003
    Last Updated: 10/18/2004
    Document ID: 337EQPVS

    Your Feedback! poor Poor  |  Excellent excellent   Yes No
     Document Quality? 
     Answered Your Question? 
      1 2 3 4 5
    Please Contact NI for all product and support inquiries.submit
    •