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KTH

Last seen: meer dan een jaar ago Active since 2011

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Question


Calling a user function from Python gives error
Hi, I have user Matlab function. It is written by someone else. There are multiple functions in that file but the first funct...

meer dan een jaar ago | 0 answers | 0

0

answers

Question


Goto's and From's performance in Generated C code
Hi, I personaly like to use Goto and From blocks in order to have a easy to read model in Simulink. But now the question came ...

meer dan 2 jaar ago | 0 answers | 0

0

answers

Answered
Input port won't go away by Delete key
Found the solution. I just did in the command window: delete_block('path to the block')

meer dan 2 jaar ago | 0

| accepted

Question


Input port won't go away by Delete key
Hi, Using matlab 2017b with Simulink, By accident I paste a Input port from the library browser. Then I try to remove it but ...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Smooth or filter too noisy data in simulink
Hi I have a control model in simulink. I use a feedback controller where states are estimated using a observer. All states are...

meer dan 3 jaar ago | 0 answers | 0

0

answers

Question


Tire model with dynamic rolling radius
Hi I am desperately searching for a tire model whithin which a dynamic rolling radius is applied based on magic formula. A tire...

meer dan 3 jaar ago | 1 answer | 0

1

answer

Question


Sliding mode observer gain
I have a nonlinear system model that I try to observe using 2nd order sliding mode observer. However I try to find the proper ga...

ongeveer 4 jaar ago | 0 answers | 0

0

answers

Answered
Plot extreme values on a time series
Lets say you have a timeserie output where in one column you have Time and in the other you have Data:1 then for finding the ma...

ongeveer 4 jaar ago | 1

Question


set initial value for a signal and then rewrite it
Hi, I have a loop in which an observer observe the states and then backward it to a controller. There need to be an initial val...

ongeveer 4 jaar ago | 1 answer | 0

1

answer

Answered
The states gets changed while observing
The reason is actually the time line or time series. I send the results to workspace and I saw that the time samples are differe...

ongeveer 4 jaar ago | 0

| accepted

Question


The states gets changed while observing
Hi, I have an control input T that goes straight to a system. In that system I solve a differential equation system with form o...

ongeveer 4 jaar ago | 1 answer | 0

1

answer

Question


How to select eaach element from a matrix multiplication with bus selector
I have a nxn Jacobian matrix and a nx1 vector that I multiplied and the result is a nx1 vector. I need to select each element th...

ongeveer 4 jaar ago | 1 answer | 0

1

answer

Answered
Latex in plot title with variables
Solved it using: mytitleText = [' Slip regulation \lambda for K_{\sigma} = ',num2str(Ksigma),' K = ', num2str(K),' and \ep...

ongeveer 4 jaar ago | 2

| accepted

Question


Latex in plot title with variables
Hi, I'm running Matlab R2014b. Trying to make a nice plot with : title([' Slip regulation \lambda for K_{\sigma} = ',num2st...

ongeveer 4 jaar ago | 1 answer | 0

1

answer

Question


How to make this integral
Hi Suppose we have following equation: S(x,t) = p(x,t) + k * int_0^t h(\tau) d\tau. What is the difference between this a...

ongeveer 4 jaar ago | 1 answer | 0

1

answer

Question


Simulink IRC channel on t ex Freenode
Hi, I wonder why there isnt any channels on for instance Freenode for Simulink. There is already a channel on freenode for matl...

ongeveer 4 jaar ago | 0 answers | 0

0

answers

Question


solving for x in a state space model
Hi, Assume that we have a diff equation as : <<https://latex.codecogs.com/gif.latex?%5Cdot%7Bx%7D%20%3D%20Ax%28t%29&plus;%20...

meer dan 4 jaar ago | 1 answer | 0

1

answer

Question


Saturation function in Simulink
Hi, I would like to implement following block in simulink. How do I do it in Simulink: U = u_d - K/b * sat(σ /θ) where: s...

meer dan 4 jaar ago | 2 answers | 0

2

answers

Question


2th order Sliding mode controller / observer In simulink
Hi, I would appritiate if somesone could provide a toturial on how to make a model of 2th order sliding mode controller and obs...

meer dan 4 jaar ago | 1 answer | 0

1

answer

Question


Making interpolate of 3 set of data
Hi, I have some space data (or data space) from measurement that shows the position of the a mass. These data are given in a st...

meer dan 5 jaar ago | 1 answer | 0

1

answer

Answered
Why do I receive License Manager Error -9?
I have tried all the step in the comments and in the article itself. it does not work. I dont know what the problem is. Please l...

ongeveer 7 jaar ago | 0

Answered
Calculate PSD using FFT
Why xdft = xdft(1:length(x)/2+1); % what does that mean? xdft(2:end-1) = 2*xdft(2:end-1); %? dubbel side? and why? I do...

ongeveer 10 jaar ago | 0

Question


Calculate PSD using FFT
Hi, The question is to calculate PSD using FFT function in MATLAB. Ive already done it with pwelch command in MATLAB and now it...

ongeveer 10 jaar ago | 5 answers | 0

5

answers