Simulink Control Design™ - MathWorks

You can also create a LinearizationAdvisor object when you linearize models at the
command line. You can then troubleshoot the linearization results using the advise and
find functions. For an example, see “Troubleshoot Linearization Results at Command
Line” on page 4-42.

Blocks That Are Potentially Problematic for Linearization

As a starting point for troubleshooting, the Linearization Advisor searches the
linearization diagnostic information for blocks that can cause common linearization
issues. These potentially problematic blocks are on the linearization path and satisfy at
least one of the following criteria.

Criteria Description

Blocks with linearization diagnostic

messages

Diagnostic messages indicate blocks with

configurations or linearizations that

correspond to common linearization

problems.

Blocks that linearize to zero Blocks with zero linearizations do not

contribute to the linearization result and

can remove other blocks from the

linearization result.

Blocks with substituted linearizations Errors in defining substitute linearizations

can be difficult to diagnose.

For more information on the linearization path, see “Linearization Path” on page 4-16.

In the Linear Analysis Tool, the diagnostic information for these blocks is listed on the
Advisor tab when the tab first opens. Also, to access this diagnostic information at any
time, in the Queries section, click Linearization Advice.

Identify and Fix Common Linearization Issues