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Model Characteristics
The Control System Toolbox contains commands to query model characteristics such as the I/O dimensions, poles, zeros, and DC gain. These commands apply to both continuous- and discrete-time models. Their LTI-based syntax is summarized in the table below.
Table 2-1: Commands to Query Model Characteristics
Command
|
Description
|
size (model_name )
|
Number of inputs and outputs
|
ndims (model_name )
|
Number of dimensions
|
isct (model_name )
|
Returns 1 for continuous systems
|
isdt (model_name )
|
Returns 1 for discrete systems
|
hasdelay (model_name )
|
True if system has delays
|
pole (model_name )
|
System poles
|
zero (model_name )
|
System (transmission) zeros
|
dcgain (model_name )
|
DC gain
|
norm (model_name )
|
System norms (H2 and L )
|
covar (model_name ,W)
|
Covariance of response to white noise
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| Arrays of Linear Models | | Interconnecting Linear Models |  |