How to design an impulse input in Matlab Simulink

Click For Summary

Discussion Overview

The discussion revolves around designing an impulse input in a Matlab Simulink model, focusing on methods to create this input type since a dedicated impulse input block is not available. The context includes homework-related inquiries and potential solutions.

Discussion Character

  • Homework-related
  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant inquires about creating an impulse input in Simulink, noting the availability of step and ramp input blocks but not an impulse block.
  • A link to MathWorks documentation on discrete impulse functions is provided by another participant.
  • Some participants suggest using two step inputs to approximate an impulse input, indicating that further exploration is needed to refine this approach.
  • There is a suggestion to consider running one step input through a delay, with a participant questioning if this is sufficient.
  • Another participant points out that the definition of an impulse is crucial and hints at the relationship between delay and the amplitudes of the step functions, suggesting that subtracting one step function from another may be necessary.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the best method to create an impulse input, with multiple competing views and suggestions remaining in the discussion.

Contextual Notes

There are unresolved aspects regarding the precise definition of an impulse and how it relates to the proposed methods, including the roles of delay and amplitude in the step functions.

AnkleBreaker
Messages
22
Reaction score
1

Homework Statement


I would like to know a way to design an impulse input in a Matlab Simulink model. I know there are step input and ramp input blocks but there is no impulse input block.

Homework Equations



The Attempt at a Solution


If any working is needed please let me know
 
Physics news on Phys.org
an easy solution can be found using two step inputs. since this is in homework, I'll let you try to figure out the rest. if you still have trouble let us know.
 
donpacino said:
an easy solution can be found using two step inputs. since this is in homework, I'll let you try to figure out the rest. if you still have trouble let us know.
impulse_simulink.jpg


Is this it? Or do I have to run one step input through a delay?
 
AnkleBreaker said:
impulse_simulink.jpg


Is this it? Or do I have to run one step input through a delay?
close but not quite... what you said about the delay is correct. there is also one more mistake as well

also to consider... how do you define an impulse? that will show you the relationship between the delay and the amplitude of the step functions.

hint. Maybe you need to subtract one step function from the other??
 

Similar threads

Engineering Simulink: How to fix given error for a closed loop model w/ PID controller?
  • · Replies 1 ·
Replies
1
Views
2K
Could someone please check my Simulink Diagram
  • · Replies 2 ·
Replies
2
Views
2K
Engineering Signal and Systems: Verify the impulse response of this system
  • · Replies 2 ·
Replies
2
Views
2K
Output of an LTI system when the input is multiplied with 'n'
  • · Replies 6 ·
Replies
6
Views
2K
Determine impulse response given input and output signals
  • · Replies 3 ·
Replies
3
Views
6K
Engineering Impulse Response of an RLC Circuit
  • · Replies 17 ·
Replies
17
Views
6K
Engineering Advanced control systems, state-space controllers
  • · Replies 11 ·
Replies
11
Views
2K
Solve Impulse Response Homework - h(n), x(n), y(k)
  • · Replies 3 ·
Replies
3
Views
2K
Matlab Simulink-Using PID controls?
  • · Replies 2 ·
Replies
2
Views
3K
Impulse reponse from step response
  • · Replies 4 ·
Replies
4
Views
2K