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I have a transfer function as shown, how do i introduce this block in simulink
Use a Tranport Delay block with Time Delay parameter of 0.2 in series with a Transfer Fcn with Numerator 1 and Denominator [0.1 ...

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I cannot match the calculated from formula FFT with the MATLAB answer though they should be the same
Hi Jonathan Let's define the input signal symbolically clear syms a x w real s1(x) = a*sech(a/sqrt(2)*x) Its Continous Time...

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d2c adding additional states to LTI
Hi Bobby, d2c using either the zoh or foh methods has a constraint that the eigenvalues of the A matrix can't be on the negativ...

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Using rlocus I am confused
Hi Madyson, If you want to draw the root locus for a specific range of gains, then only specify a single range at a time G = t...

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How can I get the parameters of a MATLAB Function programmatically on command line
For a specific Matlab Function block, as asked in the question (I have a simple Matlab Function block in my model with one input...

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Simulink State Space Error
Hi Dylan, Unclear why the error message refers to "Project1/Step" when the model apparently does not contain a Step block. Any...

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IMU sensor fusion: imufilter command reduces number of samples
Hi Aishwarya, Because the decimation factor is 2, shoudn't it be expected that there be half as many output samples as there ar...

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Using a persistent array in a Simulink function block
Hi richard, The typical structure would look like this: function [a11, a12, a21, a22, b1, b2] = fcn(I_in, V_out, U_in) persis...

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simple test for nufft not working
Hi Pieter, I don't think that expression for Y(k) is correct. We can check symbolically %% define signal t = sym([-1.0,1.0]);...

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In kalman filter, the elements of state transition matrix using fourth-order runge-kutta integration
Hi Chong-You, It sounds like the system is linear and time invariant. In continuous time, the state dynamics are: xdot(t) = A...

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Using Bus in Simulink
Does Load Data using the From Workspace Block include an example that will help?

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Error using symfun/subsref (line 203) Invalid argument at position 2.
Hi Catalina, Need to subscript N in the foor loop to create a vector with 3 elements. Also, the final construction of N had an ...

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Convert cell array of string arrays to a single string array
Hi Charles Use vertcat with a comma separated list as the input my_cell = cell(5,1); % Assign some values my_cell{1} = "even...

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Function writing in MATLAB in symbolic format
It appears that the symfun objects have to have the same arguments (number and order) to add them syms rho(x,y,z,t) rho_m(x,y,z...

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How to input exponentials in transfer functions using Simulink?
In addition to using a single transfer function along with gains and transport delays as suggested by @Sam Chak, if you have the...

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How to use a from workspace function for a 1D lookup table
Dose input_grafiek have a constant value over the entire simulation run? If it does, don't use a From Workspace block. Instead, ...

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Get Intermediate Signal of Block Diagram for Control System
Hi Ian, AFACIT, you did everything correctly as far as defining and connecting the diagram. With the PID controller defined, th...

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How can i remove (or hide) the time units ("(seconds)") from the stepplot graphic in the x-axis?
If you're willing to accept 'hours' in the label instead of 'horas' then set the TimeUnit property of M numM=[1.123]; denM=[1 ...

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Binärsignal transformation 100 [Hz] --> 2000 [Hz]
Hi julius, Does repelem meet the requirement. Here's a small example to repeat each element three times (instead of 20) to mak...

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How to test if an object is a simulink.parameter ?
Hi Alexandre Use find on dictionary section object to find the entries that meet the desired criterion. >> myDictionaryObj = S...

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Error: Simulink Scope Block does not support 'Array' format for logging matrix signals
Why not use a To Workspace block? If haven't done already this doc page is a good place to start to compare all options. In ...

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Simulink error: Time-Varying State Space block
Hi John, In the Constant blocks for sys_lqr.B and sys_lqr.C try clearing the block parameter "Interpret vector parameters as 1-...

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recreating nyquist regions using FFT
Are the "third" and "fourth" Nyquist zone the frequencies from Fs to 3*Fs/2 and from 3*Fs/2 to 2*Fs respectively? If so, third...

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Question

Did mldivide Implementation Change in R2022b?
When I run this code here on 2022b (actually, 2023a now, but I saw the same effect on 2022b) I get: load('mldivdivideex') form...

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why do my spectrogram values are negative and how to read them?
The power levels are in dB. Any positive number less than 1 is negative when converted to dB pow2db(0.5) See pow2db.

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How to use Cell array as block parameter using setBlockParameter in Simulink?
Hi David-ucr, I don't have 2022b and can't find EVModel in 2022a, so can't test. I also couldn't find it on the 2022b Simulink ...

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Resample function is not working properly and damaging the signal
Hi goksu, The observed behavior is documented at resample specifcally here: "... resample assumes that the input sequence, x, ...

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Transfer function matrix of a Multiple input DC-DC converter
Does linearize work on Simulink Simscape models?

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use green therom to find counter clockwise circulation and outward flux
Isn't the answer 0? Using the approach referenced here syms x y real % vector field F = [7*x-3*y, 7*y-3*x]; % Define the ...

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Subsystem with similar functionality as of "Unit Delay"
Does the Delay block meet the need? It can accept an IC from an external source and is externally resettable.

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