Answered

Increase temporal granularity in simulink

Do you just want to set the maximum step size for the solver?

Increase temporal granularity in simulink

Do you just want to set the maximum step size for the solver?

2 months ago | 0

| accepted

Question

Can a system() Command be used Inside a Function Called from Inside a parfor Loop?

Is the following code allowed: result = zeros(100,1); parfor ii = 1:100 % do something result(ii) = myfun(resul...

2 months ago | 1 answer | 0

Answered

Simulink model parameter update and observations at discrete times

I think you can do exactly what you want using the new (since 2024a) simulation object.

Simulink model parameter update and observations at discrete times

I think you can do exactly what you want using the new (since 2024a) simulation object.

2 months ago | 0

Answered

Simulink Variable Time Logging

One approach ... Put a To Workspace block with inherited sample time inside a Triggered Subsystem. Send the data to be logged ...

Simulink Variable Time Logging

One approach ... Put a To Workspace block with inherited sample time inside a Triggered Subsystem. Send the data to be logged ...

2 months ago | 0

Answered

What is the reference level used in spectrogram power computation?

Hi Ethan, In signal processing the concepts of power and energy are similar to, but not exactly the same, as the what those ter...

What is the reference level used in spectrogram power computation?

Hi Ethan, In signal processing the concepts of power and energy are similar to, but not exactly the same, as the what those ter...

2 months ago | 0

Answered

How to label a signal using a sub-system mask parameter in Simulink?

Hi Kevin, I was able to change a signal name in the masked subsystem using code in the mask initialization code. In my simple e...

How to label a signal using a sub-system mask parameter in Simulink?

Hi Kevin, I was able to change a signal name in the masked subsystem using code in the mask initialization code. In my simple e...

2 months ago | 0

Answered

Spectrogram output versus figure

Hi DLR, Stepping through spectrogram shows that, when output argruments aren't specified, the PSD data that's plotted is offset...

Spectrogram output versus figure

Hi DLR, Stepping through spectrogram shows that, when output argruments aren't specified, the PSD data that's plotted is offset...

2 months ago | 0

Question

How Does SeriesIndex Work with LineStyleOrder?

My interpretation of SeriesIndex is that it controls the color and style of a line based on the ColorOrder and the LineStyleOrde...

2 months ago | 1 answer | 1

Answered

Solve more complex problems in matlab

Modifying the approach from the question, using solve seems to work fine. syms x m real eq = (m-2)*x^2-3*m*x+(m+2) == 0; eq_r...

Solve more complex problems in matlab

Modifying the approach from the question, using solve seems to work fine. syms x m real eq = (m-2)*x^2-3*m*x+(m+2) == 0; eq_r...

2 months ago | 0

Answered

Failing to create matrix from cell array in several ways

Hi Amit, To subscript into a cell array and return a cell array, use () as with normal array indexing, which should have worked...

Failing to create matrix from cell array in several ways

Hi Amit, To subscript into a cell array and return a cell array, use () as with normal array indexing, which should have worked...

3 months ago | 0

Answered

Maybe a mistake in the documentation of function ''robgain''

Hi Hongrui, I agree that the statement on the doc page for that example is incorrect. At the bottom of the page you can click ...

Maybe a mistake in the documentation of function ''robgain''

Hi Hongrui, I agree that the statement on the doc page for that example is incorrect. At the bottom of the page you can click ...

3 months ago | 1

| accepted

Answered

allmargin gives incorrect answers for some discrete time systems

Hi Carlos, In 2024a, allmargin introduced a new "Focus" input. Check the doc page for more information. As far as I can tell, ...

allmargin gives incorrect answers for some discrete time systems

Hi Carlos, In 2024a, allmargin introduced a new "Focus" input. Check the doc page for more information. As far as I can tell, ...

3 months ago | 0

| accepted

Answered

Using ss2tf when your matrices are variables without values yet

Hi Wynand, For a low-order problem like this, you can use the Symbolic toolbox to evaluate the equtation that computes the tran...

Using ss2tf when your matrices are variables without values yet

Hi Wynand, For a low-order problem like this, you can use the Symbolic toolbox to evaluate the equtation that computes the tran...

3 months ago | 1

Answered

How to convert euler angles to rotation matrix and back to euler angles consistently?

"While I am aware of the intermediate steps, I kind of expected the inbuilt matlab functions to be consistent during the to-and-...

How to convert euler angles to rotation matrix and back to euler angles consistently?

"While I am aware of the intermediate steps, I kind of expected the inbuilt matlab functions to be consistent during the to-and-...

3 months ago | 1

Answered

Invalid setting in 'Model' for parameter 'Gain'.

Hi SM, Try usin the setVariable method in the Simulink.SimuationInput object. function objective_func = F3(x) mdl = "Model"; ...

Invalid setting in 'Model' for parameter 'Gain'.

Hi SM, Try usin the setVariable method in the Simulink.SimuationInput object. function objective_func = F3(x) mdl = "Model"; ...

3 months ago | 0

Question

What is the Image Processing Toolbox Convention for Input to freqz2() ?

I was trying to learn how to use the function freqz2 in the Image Processing Toolbox. That doc page says that the FIR filter inp...

3 months ago | 1 answer | 0

Answered

Combined Discrete-Continuous Simulation In SIMULINK

Hi Sajjad, It sounds like you want to use the feature of the Integrator block for Resetting the State. At every t_i, you can re...

Combined Discrete-Continuous Simulation In SIMULINK

Hi Sajjad, It sounds like you want to use the feature of the Integrator block for Resetting the State. At every t_i, you can re...

3 months ago | 1

Answered

Calculating Power of Specific Spatial Frequencies of pictures

Hi Olivia, The equations for u and v are correct if rows and cols are both even. Otherwise, they'd have to be adjusted. Regard...

Calculating Power of Specific Spatial Frequencies of pictures

Hi Olivia, The equations for u and v are correct if rows and cols are both even. Otherwise, they'd have to be adjusted. Regard...

3 months ago | 0

Answered

choose B or C or D if A does not exist - how to write this?

Create an example structure data.THDA = 1;data.THPP = 2;data.THDP = 3; Use fieldnames to get the fields of data fnames = fiel...

choose B or C or D if A does not exist - how to write this?

Create an example structure data.THDA = 1;data.THPP = 2;data.THDP = 3; Use fieldnames to get the fields of data fnames = fiel...

3 months ago | 0

| accepted

Answered

How to save an output from Simulink into MatLab during different iteration ?

Hi Ronan, Based on the description, there are probably several options, but hard to say specifically becasue we don't know exac...

How to save an output from Simulink into MatLab during different iteration ?

Hi Ronan, Based on the description, there are probably several options, but hard to say specifically becasue we don't know exac...

3 months ago | 0

| accepted

Answered

Bivariate normal value standardization

Hi CJ, In short, the area of integration for the X1 case is no longer a rectangle as is assumed by mvncdf Define the original ...

Bivariate normal value standardization

Hi CJ, In short, the area of integration for the X1 case is no longer a rectangle as is assumed by mvncdf Define the original ...

3 months ago | 0

| accepted

Answered

How do I solve this error in Parameter Setting for 2-D Lookup Table Block in Simulink?

% Create a surrogate model for vehicle longitudinal dynamics % Set model name modelName = 'VehicleLongitudinalSurrogate'; % C...

How do I solve this error in Parameter Setting for 2-D Lookup Table Block in Simulink?

% Create a surrogate model for vehicle longitudinal dynamics % Set model name modelName = 'VehicleLongitudinalSurrogate'; % C...

3 months ago | 1

| accepted

Answered

Application of multistage decimator filter to signal

As shown at designMultistageDecimator, this function retruns a dsp.FilterCascade object M = 48; Fin = 30.72e6*M; Astop = 90; ...

Application of multistage decimator filter to signal

As shown at designMultistageDecimator, this function retruns a dsp.FilterCascade object M = 48; Fin = 30.72e6*M; Astop = 90; ...

3 months ago | 0

Answered

Simulink Model to transfer function via simulink and Matlab

Hi Yuval, What is the setting for the c parameter in the Derivative blocks? If it's the default (inf), those blocks will linea...

Simulink Model to transfer function via simulink and Matlab

Hi Yuval, What is the setting for the c parameter in the Derivative blocks? If it's the default (inf), those blocks will linea...

3 months ago | 0

| accepted

Answered

In Simulink, why do two unrelated modules affect each other?

Even if A and B are not connected, changes in B can causes changes in output of A because those changes in B can affect the step...

In Simulink, why do two unrelated modules affect each other?

Even if A and B are not connected, changes in B can causes changes in output of A because those changes in B can affect the step...

4 months ago | 0

Answered

Create Variable in Simulink block that contains 63 elements.

Hi David, Question is a bit unclear. As shown, it appears the model has 63 separate Sine Wave blocks. That means each time th...

Create Variable in Simulink block that contains 63 elements.

Hi David, Question is a bit unclear. As shown, it appears the model has 63 separate Sine Wave blocks. That means each time th...

4 months ago | 0

| accepted

Answered

Shiftet values of omega in bode plot as result from generating idfrd() and tfest()

If fre is in Hz, then this line frerad = fre.*(pi/180); should be freqrad = fre*2*pi; to convert to rad/sec

Shiftet values of omega in bode plot as result from generating idfrd() and tfest()

If fre is in Hz, then this line frerad = fre.*(pi/180); should be freqrad = fre*2*pi; to convert to rad/sec

4 months ago | 0

| accepted

Answered

Name a dataset that will be used in Simulink

Hi David, The 'unnamed' in that block is the name of the signal, not the dataset. f0 = 60; % Fundamental frequency in Hz samp...

Name a dataset that will be used in Simulink

Hi David, The 'unnamed' in that block is the name of the signal, not the dataset. f0 = 60; % Fundamental frequency in Hz samp...

4 months ago | 1

| accepted

Answered

Poisson CDF output is all one value

Hi Michael, The Poisson Distribution is a distribution of a discrete random variable that takes on only integer values >= 0. Fo...

Poisson CDF output is all one value

Hi Michael, The Poisson Distribution is a distribution of a discrete random variable that takes on only integer values >= 0. Fo...

4 months ago | 0

| accepted

Answered

Struct array with differently sized fields as parameter data for Simulink simulation

Hi Friedrich, Using 2022a (so there might be some updates in this area if using a later version), the Matlab Fucntion block can...

Struct array with differently sized fields as parameter data for Simulink simulation

Hi Friedrich, Using 2022a (so there might be some updates in this area if using a later version), the Matlab Fucntion block can...

4 months ago | 0

| accepted