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Contribute at least one answer each month for 36 consecutive months
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Feeds
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...
2 dagar ago | 0
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...
3 dagar ago | 0
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 dagar ago | 0
| accepted
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
5 dagar ago | 0
| accepted
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...
8 dagar ago | 1
| accepted
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...
10 dagar ago | 0
| accepted
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...
10 dagar ago | 0
| accepted
Can you create an object in Simulink that can be referenced by multiple MATLAB Fcn blocks?
Hi Roop, If you want to use global data inside Matlab Function blocks, start from Use Global Data in MATLAB Function Blocks to ...
11 dagar ago | 0
Is there a way to log variables from a Matlab Function Block (in Simulink), that is not output?
Here's one option based on the idea of @Aquatris to specify the local variables that you want to log from the Matlab Function as...
12 dagar ago | 0
| accepted
how to import parameters (weights and bias) in simulink
Hi Ahmad, To bring fc1, fc2, fc3 and fc4 into the Malab function block as constant parameters, start from Configure MATLAB Fun...
15 dagar ago | 1
Using logicals in arrayfun
rng(100) tempA = rand(10,18); tempB = 1:10; u = arrayfun(@(x,y) x{1}(1:y), num2cell(tempA,2), tempB.', 'UniformOutput', fals...
16 dagar ago | 1
Question
How does Symbolic diff() Operate When the Order of Derivative is Symbolic?
Simple symbolic function syms n integer positive syms x real f(x) = x^n First, second, and sixth (just to check) derivatives...
16 dagar ago | 1 answer | 0
1
answerHow to continually clock in data during a simulation within Simulink
Hi Dan, It appears that the output of the Bit to Integer Conversion block is a scalar, which can be checked by going to Debug -...
17 dagar ago | 0
Why such a fuss with ndgrid and meshgrid issues?
Hi Kristoffer, The inputs to griddata that can be in either meshgrid or ndgrid format are the query points in Xq and Yq. I thin...
18 dagar ago | 1
How to add a time delay to a diagonal ss from a reside pole function?
Hi Joan, The problem appears to be with how bodeplot is unwrapping the phase. Here is the original code % Delay problem Ak =...
19 dagar ago | 0
| accepted
how to label the variance decomposition table
Check the doc page collintest and review how to use the VarNames input. Or, instead of pulling all the variables out from data,...
20 dagar ago | 1
| accepted
PID controller, difference when graphing step function with PID control block in matlab and simulink
Hi hoang, The posted code doesn't result in the same figure as in the question s =tf('s'); g = 1.883e5/(s*(s^2+4466*s+6.43e6)...
21 dagar ago | 1
how to calculate singular values in collin test to detect multicollinearity
Hi NAFISA, Using the example from the the doc collintest load Data_Canada Output from collintest [sValues,condInx] = collint...
22 dagar ago | 1
FFT multiple input waves and plot on same graph
%% Input Signal fs = 20e3; numFilts = 32; % filter_number = numFilts; freq1 = 1000; % Hz Nperiods = 15; % we need more th...
23 dagar ago | 0
| accepted
How does nufft function work in matlab?
To get fft and nufft to yield the same results .... tmax = 12; n = 2^11; tau = 1; % Width of the gaussian pulse ...
23 dagar ago | 0
Temporarily Change Signal Line Names in Simulink
Hi Dhruv, At the risk of asking an obvious question, does the workflow require that the model be saved after modifying the gene...
24 dagar ago | 0
Why do these methods to obtain the simulink model transfer functions return different results?
Hi BW, Define PI and F s = zpk('s'); PI = 1 + 2/s; F = 6; In the first case, the linerarizer computes the transfer functio...
26 dagar ago | 1
| accepted
Simulink 3D matrix interpolation using pre-lookups
Hi Alborz, It looks like you're switching between 6x5 and 5x6 in your post. Assumign that a) the table is 6 x 5 x 2 as in the ...
27 dagar ago | 0
| accepted
Are there any alternatives to try/catch statements that are supported by code generation?
Hi Roop, Can you post the code of a simple Matab Function that illustrates how you're tyring to use a try/catch? I'm having tro...
27 dagar ago | 0
| accepted
Reconstruct time series from FFT components. There is a time shift error.
Hi Haifei, You may want to investigate why the data is not uniformly sampled and how that impacts the analysis. Does the other ...
28 dagar ago | 0
| accepted
Simulink - How to create a conditional "if" block
Perhaps you can use a Relay block to model the desired behavior based on the heating/cooling analogy. The output of the Relay ca...
ungefär en månad ago | 0
| accepted
Why do we use ifft instead of fft when looking at the spectrum of a sech pulse (uu) in this code?
Hi Siheon, Your interpretation of fft as going from time to frequency, and ifft as going from frequency to time, with fft and i...
ungefär en månad ago | 0
| accepted
Is enabled subsystem confusing? (Enable Port)
Hi Ahmed, To me that looks like an error in the documentation. That parameter controls what happens to the states inside the su...
ungefär en månad ago | 0
| accepted
Discrete convolution in time/Laplace domain
Simplest and most efficient approach would be to compute samples r_i = r(i*T) where T is the sampling period and then use conv t...
ungefär en månad ago | 1
| accepted
Is the "kinematicTrajectory" function correct for calculating angular velocity?
Hi Erik, The code is comparing two different quantities: Here, T is the matrix that mutliplies the angular velocity vector res...
ungefär en månad ago | 0
| accepted
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