sdo.requirements.StepResponseEnvelope class
Package: sdo.requirements
Step response bound on signal
Description
Specify a step response envelope requirement on a time-domain signal. Step response characteristics such as rise-time and percentage overshoot define the step response envelope.
Construction
step_req = sdo.requirements.StepResponseEnvelopesdo.requirements.StepResponseEnvelope object and assigns default
values to its properties.
step_req =
sdo.requirements.StepResponseEnvelope(Name,Value)Name,Value pair arguments.
Name is a property name and Value is the corresponding
value. Name must appear inside single quotes (''). You can
specify several name-value pair arguments in any order as
Name1,Value1,...,NameN,ValueN.
Input Arguments
Name-Value Pair ArgumentsSpecify optional
comma-separated pairs of Name,Value arguments. Name is
the argument name and Value is the corresponding value.
Name must appear inside quotes. You can specify several name and value
pair arguments in any order as
Name1,Value1,...,NameN,ValueN.
Use Name,Value arguments to specify properties of the
requirement object during object creation. For example, requirement
= sdo.requirements.StepResponseEnvelope('PercentOvershoot',20) creates
an sdo.requirements.StepResponseEnvelope object
and specifies the PercentOvershoot property as
20.
Properties
|
Requirement description, specified as a character vector. For
example, Default: |
|
Final value of the step response. Must
be a finite real scalar not equal to the Default: |
|
Value of the signal level before the step response starts. Must
be a finite real scalar not equal to the Default: |
|
Requirement name, specified as a character vector. Default: |
|
The percentage amount by which the signal can exceed the final value before settling. Must be a real finite scalar between Use Default: |
|
The percentage of final value used with the Must be a real finite scalar between Use Default: |
|
The percentage of the final value that defines the settling
range of settling time characteristic specified in the Must be a real positive finite scalar between Use Default: |
|
The percentage amount by which the signal can undershoot the initial value. Must be a positive finite scalar between Default: |
|
Time taken, in seconds, for the signal to reach a percentage
of the final value specified in Must be a finite positive real scalar and less than the Use Default: |
|
Time taken, in seconds, for the signal to settle within a specified
range around the final value. This settling range is defined as the
final value plus or minus the percentage of the final value, specified
in Must be a finite positive real scalar, greater than Use Default: |
|
Time, in seconds, when the step response starts. Must be a finite real nonnegative scalar, less than the Use Default: |
|
Time units of the requirement, specified as one of the following values:
Default: |
|
Step response bound type. This property is read-only and set to |
Methods
| evalRequirement | Evaluate satisfaction of step response requirement |
Copy Semantics
Handle. To learn how handle classes affect copy operations, see Copying Objects.
Examples
Construct a step response bound object and specify percent overshoot.
r = sdo.requirements.StepResponseEnvelope; r.PercentOvershoot = 20;
Alternatively, you can specify the percent overshoot during construction:
r = sdo.requirements.StepResponseEnvelope('PercentOvershoot',20);Alternatives
Use getbounds to get the
bounds specified in a Check Step Response Characteristics block.