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Question
Updated Simulink model in Matlab 2022 won't compile
Hello, So what I am trying to do is to update a 2016b Simulink model to 2022b. Each time I pressed on run it complained about s...
ungefär 2 år ago | 1 answer | 0
1
answerKeep the latest desired value before changing to undesired value
So what I did was the following:
ungefär 2 år ago | 0
| accepted
Question
Keep the latest desired value before changing to undesired value
Hello, So let state that the signal X has four states [0,1,2,3]. The values 2,3 are not "good" values and you want to keep the ...
ungefär 2 år ago | 2 answers | 0
2
answersQuestion
Switch block requires all signal to be same virtuality.
Hi, I had a Simulink model that is built in Matlab 2016b and now I am trying to update it to Matlab 2018b. I do run the upgrade...
mer än 2 år ago | 1 answer | 0
1
answerQuestion
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...
mer än 5 år ago | 0 answers | 0
0
answersQuestion
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 ...
mer än 6 år ago | 0 answers | 0
0
answersInput port won't go away by Delete key
Found the solution. I just did in the command window: delete_block('path to the block')
mer än 6 år 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 ...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
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...
mer än 7 år ago | 0 answers | 0
0
answersQuestion
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...
mer än 7 år ago | 1 answer | 0
1
answerQuestion
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...
nästan 8 år ago | 0 answers | 0
0
answersPlot 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...
ungefär 8 år 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...
ungefär 8 år ago | 1 answer | 0
1
answerThe 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...
ungefär 8 år 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...
ungefär 8 år ago | 1 answer | 0
1
answerQuestion
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...
ungefär 8 år ago | 1 answer | 0
1
answerLatex in plot title with variables
Solved it using: mytitleText = [' Slip regulation \lambda for K_{\sigma} = ',num2str(Ksigma),' K = ', num2str(K),' and \ep...
ungefär 8 år ago | 4
| 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...
ungefär 8 år ago | 1 answer | 1
1
answerQuestion
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...
ungefär 8 år ago | 1 answer | 0
1
answerQuestion
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...
ungefär 8 år ago | 0 answers | 0
0
answersQuestion
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+%20...
ungefär 8 år ago | 1 answer | 0
1
answerQuestion
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...
ungefär 8 år ago | 2 answers | 0
2
answersQuestion
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...
mer än 8 år ago | 1 answer | 0
1
answerQuestion
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...
mer än 9 år ago | 1 answer | 0
1
answerCalculate 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...
nästan 14 år 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...
nästan 14 år ago | 5 answers | 1
