# Tagged Questions

Questions on the use of Mathematica to analyze, design, and simulate continuous- and discrete-time control systems.

287 views

### How to draw block diagrams as Graph objects?

In the documentation ClosedLoopResponsesWithAPIDController, There is a very nice block diagram. I want to create my own block diagrams similar to this. I clicked on the diagram and pressed "command-...
655 views

### Kalman filter by hand

I am now learning the Kalman filter and wants to implement it by hand to understand it better. To be specific I want to first simulate a sequence of data by  \dot x=Ax+Bw\\ y=Cx+Dv,\\ E[x(0)]=0,E[x(...
151 views

### System Identification from test data

I've been looking for a way to model a simple SISO system from test data using Mathematica. Something similar to MATLAB's System Identification Toolkit, that estimates a transfer function from the ...
42 views

### How to model discontinuities in a NonlinearStateSpaceModel

I know that it is possible to model discontinuities like bouncing and other collisions by using WhenEvent with NDSolve. However, I am using the tools for Non linear systems and I'd like to know if ...
349 views

### No response from DSolve

Using optimal control theory, I am trying to find the optimal paths of d and k such that they will maximize profit as given by lc: ...
I have three equations as follows: $A_p=F \cos(\alpha+ \phi) - \mu N^{'}_{S_1} - \mu N_{S_1} - W \sin \theta = m ( \ddot x - r \ddot \theta (\sin (\gamma+ \phi)) )$ \$B_p=F \cos(\alpha+ \phi) - \mu ...