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# Ivo Houtzager

Last seen: 3 days ago Active since 2008

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Error using Kalman function - cannot compute stabilizing Riccati solution
Your state-space model is probably not a minimal realization, in other words not fully obervable or not fully controllable. Perf...

11 months ago | 0

Solve Linear System with a Ill Conditioned matrix.
Please have look at the following regress function, see PBSID-Toolbox/regress.m at master · jwvanwingerden/PBSID-Toolbox · GitHu...

1 year ago | 0

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How to solve the Lyapunov equation with unknowns
One inefficient way is too convert the Lyaponuv Matrix equation to linear system using the vectorization rule, and solve the lin...

1 year ago | 1

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discrete transfer function block replace of contioues transfer function block
You can't use the same parameters of the continuous-time filter in the discrete-time filter. You will have to discretize the fil...

2 years ago | 0

Least square parameter estimation of MIMO ARX model
Example script to obtain the parameters of a MIMO ARX model (VARX) using least squares. N = 1000; % number of samples p = 5; %...

2 years ago | 0

System ID function AR or ARMAX
Define a step input, and fit OE model as this model structure fits your data the best. See updated code below. % generate data:...

2 years ago | 0

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How to transform matrix V? (A = V*F*inv(V))
I believe you want to compute the Jordan canonical form of A. This can be done by [V,F] = jordan(A)

3 years ago | 0

Solving 4 linear equations with 4 unknowns (but vector variables)
Rewrite the linear equations to the linear matrix form of Y = A * X and then solve this linear matrix problem, see the following...

3 years ago | 0

lsim giving wrong results
Your end time in seconds do not match between the plots. The lsim simulates only up to 50 seconds which was set by the T variabl...

3 years ago | 0

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How to convert fmincon to C code?
The fmincon is supported by code generation, but there are limitations on syntax and options which can be used, see the followin...

3 years ago | 0

Solve (a*B) + (c*D) = E without the Symbolic Toolbox
A = E*pinv([B; D]); a = A(1); c = A(2);

3 years ago | 0

I had the same issue. For me disabling "USB Support" in the target settings solved it. Also the disable SMI block from https:/...

3 years ago | 0

Answer for Simulink Real-Time version up to 2020a. The target PC must be able to run DOS. Thus motherboards with UEFI only firmw...

3 years ago | 6

Simulink Real-Time: boot in UEFI mode
Simulink Real-Time runs OnTime RTKernel on DOS. MS-DOS or FreeDOS require a BIOS interface to boot. Thus it's not possible for U...

3 years ago | 0

There is a Simulink controller design example to create DLL for GH Bladed and OpenFAST in github, see https://github.com/TUDelf...

3 years ago | 0

Is it possible to add EtherCAT Master to Raspberry Pi Simulink Support Package?
See example on the File Exchange Simple EtherCAT Master Block SFunction for Raspberry Pi which shows basic usage of the Simple O...

3 years ago | 0

EtherCAT master in Simulink Desktop Real-Time
See example on the File Exchange Simple EtherCAT Master for Simulink Windows Desktop which uses the SOEM library and WinPcap dri...

3 years ago | 2

3 years ago | 0

GCC compiled MEX file taking more time than the one compiled by Microsoft Visual Studio.
There is difference in the default floating-point optimization between the compilers. The floating-point calculations from th...

8 years ago | 2

I have got the Jenkins-Traub root finder code in C++ and need to convert it into mex file so that I can use it in MATLAB. How to do it?
See for example File Exchange ID #50462: <http://www.mathworks.com/matlabcentral/fileexchange/50462-polynomial-roots-with-jen...

9 years ago | 0