Respondida
no data in the data browser when i use model linearizer in simulink
See this Question and Answer.

más de 1 año hace | 0

Respondida
unable to identify and simulate a function block
Try using a Constant block and set the block parameter "Constant value" to 2*Kr*lfc. Can do the same for the Kr*lfc term as well...

más de 1 año hace | 0

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Respondida
How to change the default x-axis unit in a Bode diagram to Hertz?
ctrlpref allows one to change the default units for frequency axis when plotting with bode and bodeplot (among other defaults in...

más de 1 año hace | 2

Respondida
Deconvolution of two Bragg Curves
D = dir; D(3).name T1 = readtable(D(3).name); T1.Properties.VariableNames VarName2 = T1.Var2; D(4).name T2 = readtable(D(4...

más de 1 año hace | 0

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Respondida
Which exponential option block: fcn vs math function, is more accurate in a Simulink model?
In general u/fc (top path), is not exactly the same as u*(1/fc) (bottom path) in floating point. Example: rng(100) u = rand; ...

más de 1 año hace | 0

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Respondida
Why does this special case for associativity of a matrix product with a hadamard product hold true?
Hi Clay, If you're willing to accept (or show, which I think would be straight forward) that, in Matlab, matrix .* row is equal...

más de 1 año hace | 2

Respondida
Implementing Z-Transform of -a^n*heaviside(-n-1)
syms a n z Assume is an integer for clarity assume(n,'integer'); To get the expected result, we have to ensure the correct va...

más de 1 año hace | 1

Respondida
How to Solve a System of Equations for symfun Objects?
I took a shot. Here's a start, doesn't do any error checking, assumes that there is one valid solution .... syms R(s) e(s) Y(s)...

más de 1 año hace | 0

Pregunta

How to Solve a System of Equations for symfun Objects?
Suppose I have a system of equations: syms R E Y G eq1 = Y == G*E; eq2 = E == R-Y; Solve for Y and E in terms of R sol = so...

más de 1 año hace | 2 respuestas | 0

2

respuestas

Respondida
question about dely lines
One can attack this symbolically if the parameters in the problems aren't known. If they are, one can proceed numerically using ...

más de 1 año hace | 0

Respondida
How to use the diagonal symbol matrix？
Need to specify the vars explicitly if defined individually syms a1 a2 a3 A = diag([a1,a2,a3]) M = matlabFunction(2*A,'Vars',...

más de 1 año hace | 1

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Respondida
how can plot the region of convergence?
Since 2024a, radiusregion looks like a reasonable approach to get started. For example, suppose the region of convergence is 0....

más de 1 año hace | 0

Respondida
What is default Mu for Vehicle Body 3 DOF block?
As best I can tell, if the [mu_r, mu_f] vector is not specified externally, then the block uses the parameter specified in Nom...

más de 1 año hace | 0

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Respondida
Why the filter has no output?
The function filter is only applicable for a discrete-time filter, not an analog filter. If you want to simulate the output from...

más de 1 año hace | 0

Pregunta

Why Do digitalFilter Object Functions Ignore the Filter's SampleRate Property?
Design a low pass filter lpFilt = designfilt('lowpassiir','FilterOrder',8, ... 'PassbandFrequency',35e3,'PassbandRipp...

más de 1 año hace | 1 respuesta | 0

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respuesta

Respondida
Unable to create Bode plot of H(s)=(s+10)/(s(s+5)^2)
As shown after the edit of @Walter Roberson, the code runs fine here. Do you see the same output after executing the following c...

más de 1 año hace | 0

Respondida
How can I make the following heatmap smoother while preserving the contours outlined by the green line?
If you don't need specific features of heatmap, perhaps a pcolor with shading would be useful load DataMe pcolor(flipud(TPP)),...

más de 1 año hace | 0

Respondida
In simulink, how can I make a parameter of a simulink block continuously updated during the simulation time by MATLAB function block?
Hi Yeonghoon, One option to try would be the Parameter Writer. Don't know if the particular block and block parameter in questi...

más de 1 año hace | 0

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Respondida
Why does this integral of a relatively well behaved function return NaN values?
Hi Ryan, I think that individual terms in the integrand blow up to inf when evaluating in double precision. u = 10^6; % unit c...

más de 1 año hace | 1

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Respondida
ECEF 6DOF block - integrator initial conditions
Hi Thomas, Are you referring to 6DOF ECEF (Quaternion)? What exactly do you mean by the "body rate integrator"? Are you loggin...

más de 1 año hace | 0

Respondida
Filter Z Transform Manipulation
Define a filiter in Signal Processing Toolbox (SPT) and plot the frequency response fc = 300; fs = 1000; [b,a] = butter(6,fc/...

más de 1 año hace | 0

Respondida
discontinuous differential equations using inverse z transform?
It appears the goal is to derive a difference equation from the corresponding, discrete-time, transfer function. Define the tra...

más de 1 año hace | 0

Respondida
Problem using variable='z^-1' in Z transform with Z^-1 format
When specifying a tf in with Variable='z', the num and den are interpreted as being coefficients of descending powers of z num=...

más de 1 año hace | 0

Respondida
How do you get a symbolic answer for this z transform in MATLAB
With the default symbolic preferences sympref('default'); We have heaviside(0),disp(char(ans)) So the discrete-time unit ste...

más de 1 año hace | 0

Respondida
How to convert state space to transfer function.
See this answer for how to represent the state space model in the Control Systems Toolbox.

más de 1 año hace | 0

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Respondida
How can I plot a correct fft of cosine wave?
The problem statement is to plot the Fourier Transform of a cosine (cos(2*pi*t)), but sampled with sample frequency of fs=12Hz. ...

más de 1 año hace | 0

Respondida
Adding 0 value place holders to string array
s= [ "0, 74, 46, 94" "7, 64, 8" "8, 50, 32, 70" "6, 43" "3, 55, 47"] c = count(s,",") s = arrayfun(@(s,c) join([s,repmat...

más de 1 año hace | 0

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Discussion

Would a General Hold/Release Functionality be a Good Feature for the Symbolic Toolbox?
The int function in the Symbolic Toolbox has a hold/release functionality wherein the expression can be held to delay evaluation...

más de 1 año hace | 1

Respondida
Problem with ctrbf() and its answer
Check the doc page ctrbf to see how A_bar etc. are arranged in terms of the uncontrollable and controllable portions.

más de 1 año hace | 0

Respondida
Open loop stability: Bode - Pole zero plot mismatch
Use the open-loop system developed by @Arkadiy Turevskiy in this comment sys=zpk([2.4*10^9*j -2.4*10^9*j], [-0.0000001 -11.5*10...

más de 1 año hace | 0