Digital Computer Program for the Determination of Modified Z-Transforms with W-Plane Transformation.
Abstract
In the analysis of sampled-data control systems containing transport lags due to computational delay of the controller and/or the actuator mechanism, the modified z-transforms are frequently used. This computer program breaks down the LaPlace transform transfer function of the system into a sum of partial fractions and computes the modified z-transform of each term. Each term is then mapped into the W-plane by the bilinear transformation z = (1 + W)/(1 - W). This technique allows the control system designer to use conventional classical methods of continuous systems on the W-plane transfer function. The poles and zeros of the W-place are then mapped back into z by inverse transformation. The program listing is included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1974
- Accession Number
- ADA005585
Entities
People
- Bettye Rogerson
- Edward E. Herbert