Answered
Transfer Function of a simple Circuit using Simulink
You did not specify which transfer function you want. Let's assume you want a transfer function from input voltage to output vol...

10 years ago | 19

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Answered
i want to obtain the transfer function of the controller
If you know the transfer function, define it like this in MATLAB: s=tf('s'); sys=(1*s^2+2*s+3)/(4*s^4+5*s^2+6*s+7) ...

10 years ago | 0

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Answered
Using "kalman" with a Zero B matrix
Yes, you can use _kalman_ to design a Kalman filter for a system with no input _u_ . Did you try it? Did you run into problems?

10 years ago | 0

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I have a question regarding control theory, How are state space equations linked with state flow?? Can stateflow have memory??
Two separate questions here. State-space equations do not have much to do with Stateflow, except for the word "state". St...

10 years ago | 0

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Answered
Bode diagram at different amplitudes?
The best option in this case is probably <http://www.mathworks.com/videos/frequency-response-estimation-68884.html frequency res...

10 years ago | 0

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Answered
How can I compute the controller effort and perform robust analysis in Simulink?
It is not 100% clear what exactly you need - time history of controller response, or a transfer function of controller response?...

10 years ago | 1

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Answered
Get empty results from hinfsyn
This seems strange. Hard to diagnose without having access to your data. Can you share it? You can also contact <https://mathwor...

10 years ago | 0

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what algorithms are applied in the auto tuning of PID block in simulink?
Proprietary algorithm developed by MathWorks. From the "Algorithms" section <http://www.mathworks.com/help/control/ref/pidtun...

10 years ago | 0

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Answered
Identification toolbox - Parameter identification of a given state space structure
1. You can enable feedthrough and disturbance estimation for n4sid by setting name-value pair function arguments properly, as de...

10 years ago | 0

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How should data be prepared for system identification?
Please take a look at <http://www.mathworks.com/help/ident/gs/about-system-identification.html#bsguh6g-1 this section> of the do...

10 years ago | 0

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How to know the transfer function and plot the poles of coupled high order differential equations?
Transfer functions are representations of linear time-invariant systems. Your system is not linear. You can implement your syste...

10 years ago | 0

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Answered
what is the tranfer function of this model?
You need to be more specific. What transfer function do you want - the plant transfer function: <</matlabcentral/answers/up...

10 years ago | 0

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Answered
"feedback" amd "append" comands
Read the section of the example preceding this code immediately. You will see that what the example does is apply feedback contr...

10 years ago | 0

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Answered
how to develop simulink model using this code
Take a look at a few "getting started" videos for Simulink - you can find them <http://www.mathworks.com/products/simulink/video...

10 years ago | 0

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Answered
How to calculate parameters suspension system?
You can build parameterized model in Simulink, and then use Simulink Design Optimization to automatically adjust all parameter v...

10 years ago | 0

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how to convert .fis(fuzzy) file to.c/cpp file?
1. use <http://www.mathworks.com/help/fuzzy/fuzzylogiccontroller.html Fuzzy Logic Controller block> 2. specify your FIS syste...

10 years ago | 0

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From bode to transfer function
You need to set tfestoptions Focus property to "prediction" to allow for unstable systems (your system has two unstable poles). ...

10 years ago | 1

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Answered
I must change something in the model to select the variables in Response Optimization?
The tool should display all the variables that are used by the blocks of your model. The variables can be defined in base worksp...

10 years ago | 0

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Answered
Arduino Support from Simulink only for students?
Target hardware support (including Arduino) is included with all versions of Simulink.

10 years ago | 0

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Answered
Evaluation of Fuzzy Inference system with GUI
If you want to evaluate your FIS on a matrix of data, use <http://www.mathworks.com/help/fuzzy/evalfis.html evalfis> function. F...

10 years ago | 0

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How to build a discrete model of my continous model. The command c2d does not work properly.
Transfer function representation of an LTI system is not the best representation for doing calculations. For more on that please...

10 years ago | 2

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Answered
PI controller for boost converter design
Update as of April 2014: his has now been addressed in R2014a, please take a look at this <http://www.mathworks.com/videos/pid-c...

10 years ago | 0

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Descriptor State space in Simulink
You can implement descriptor state space systems in Simulink using <http://www.mathworks.com/help/control/ug/simulink-block-for-...

10 years ago | 0

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Answered
How can I tune PR (proportional Resonant) controllers in Sisotools?
Unfortunately, you cannot tune this type of compensator in SISO Tool and preserve the compensator structure. There are oth...

10 years ago | 1

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How can i get the transfer function for an Hinfinity contrller using State space matrices?
see <http://www.mathworks.com/help/robust/ref/loopsyn.html loopsyn>

10 years ago | 0

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Matlab Edge Dectection mask
Have you seen <http://www.mathworks.com/help/fuzzy/examples/fuzzy-logic-image-processing.html?prodcode=FL&language=en this examp...

10 years ago | 0

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how to setting fuzzy rule in matlab simulink?
You need to be more specific with what you do not understand. The images you inserted do not help with that. If you are askin...

10 years ago | 0

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Answered
Polynomial models -- System identification toolbox
What do you mean by 100% variance? I just tried it in R2014a using example data set (Click on "Import Data" and select last o...

10 years ago | 0

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Transfer function estimation with unknown number of poles and zeros
No, when using _tfest_ you have to specify the number of poles and zeros. If you are estimating state-space models, you can m...

10 years ago | 0

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Answered
Bode Plot axes changes with sampling time?
Take a look at the examples section <http://www.mathworks.com/help/matlab/ref/fft.html here> . The FFT frequency is basically...

10 years ago | 0