| Version 6.0 (R14) Control System Toolbox™ Software Release Notes | |
This table summarizes what's new in Version 6.0 (R14):
New Features and Changes | Version Compatibility Considerations | Fixed Bugs and Known Problems | Related Documentation at Web Site |
|---|---|---|---|
Yes | Yes—Details labeled as Compatibility Considerations, below. See also Summary on page 23. | Fixed bugs | No |
New features and changes introduced in this version are
The LTI Viewer interface with the Simulink® linearization tools has been moved from the Control System Toolbox™ product to the Simulink® Control Design™ product.
If you have Simulink Control Design software installed on your system, type slview to open the Linear Analysis Tool.
To perform linearization, you must install Simulink Control Design software. You can no longer perform this function using Control System Toolbox software.
The numerical engine has been overhauled to leverage the state-of-the-art LAPACK and SLICOT libraries, resulting in faster and more accurate computations. This upgrade benefits the following areas:
Computation of system zeros (zero, ss to tf or zpk conversions)
This release also introduces several new foundation algorithms, including:
Square-root solvers for stable Lyapunov equations (lyapchol and dlyapchol)
Block diagonalization algorithm (bdschur)
Commands for reordering eigenvalues in Schur decompositions (ordschur and ordqz). These commands are part of the MATLAB® product.
The support for model order reduction has been significantly improved:
balreal now leverages the new square-root Lyapunov solvers for greater robustness, accuracy, and performance.
Reduction of unstable or marginally stable systems is now supported.
New commands have been added for additive modal decompositions:
stabsep separates the stable and unstable modes of a system.
modsep performs modal decompositions into N arbitrary regions.
The following bugs were fixed in this release:
Issues with frequency-unit conversions in the LTI Viewer
allmargin issues for some discrete models with poles near z=1
Empty sigma plot for MIMO system with zero gain between some I/O pairs
Issues with rlocus command applied to improper systems
| Version 6.1 (R14SP1) Control System Toolbox™ Software | Version 5.2.1 (R13SP2) Control System Toolbox™ Software | |
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