Choosing the Step Size using Stepinfo

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Andre Lucas De Luna Santos
评论： Fangjun Jiang 2019-1-28
Dear all,
Would you know how to select the size of the step function when using stepinfo? I know it is equal to 1 by default, but I need to use different values.
I appreciate your help!!
Sincerely,
Andre Luna.

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回答（1 个）

Fangjun Jiang
Fangjun Jiang 2019-1-25
编辑：Fangjun Jiang 2019-1-28
stepinfo() is to tell step response characteristics such as rise time, overshoott, etc. given that the step response is provided.
What you need is step(). You can run step(SYS,T) in which T specifies the time vector. You can choose your step size by specifying T, for example, T=0:0.01:2
  2 个评论
Andre Lucas De Luna Santos
Andre Lucas De Luna Santos 2019-1-25
Hello, Fangjun Jiang!
I am sorry I think I expressed myself wrong. I should have said amplitude instead of size. I need to know the step response characteristics of a step of amplitude 0.05 instead of 1.
Would you know how?
Fangjun Jiang
Fangjun Jiang 2019-1-28
Assume your system is linear, then you can multiply your step response with 20 and then run stepinfo().

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