Creating and Manipulating Models

Operations on LTI Models

You can perform basic matrix operations such as addition, multiplication, or concatenation on LTI models. Such operations are "overloaded," which means that they use the same syntax as they do for matrices, but are adapted so as to apply to the LTI model context. These overloaded operations and their interpretation in this context are discussed in this chapter. You can read about discretization methods in this chapter as well. The following topics and operations on LTI models are covered in this chapter:

• Precedence and Property Inheritance
• Extracting and Modifying Subsystems
• Arithmetic Operations
• Model Interconnection Functions
• Continuous/Discrete-Time Conversions of LTI Models
• Resampling of Discrete-Time Models

These operations can be applied to LTI models of different types. As a result, before discussing operations on LTI models, we discuss model type precedence and how LTI model properties are inherited when models are combined using these operations. To read about how you can apply these operations to arrays of LTI models, see "Operations on LTI Arrays" on page 4-24. To read about the available functions with which you can analyze LTI models, see Chapter 5, "Model Analysis Tools,"

References

Precedence and Property Inheritance