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How to Filter a Commanded Position to have Velocity and Acceleration Limits in Simulink
I'm not sure that it's feasible to meet all of the stated requirements, particularly "If the signal is not saturated, [it should...

4年以上前 | 1

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hey. I keep getting an error for this code. If anyone could help me it would be greatly appreciated.
Should num also use poly2sym? Otherwise, gs is 1 x 2 transfer function matrix, which may be what you want, but maybe not. If y...

4年以上前 | 1

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ilaplace gives time limited result
Sometimse fplot() gets confused. Does regular plot() show the expected result? syms s syms t real A = 20e3; B = 10e3; C= 4...

4年以上前 | 0

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Why Matlab do not respect the exponential matrix property \exp^{YXY^{-1}}=Y\exp^XY^{-1}?
The identity holds for the matrix exponential, which is implemented with expm(), not exp() (which is the element-wise exponentia...

4年以上前 | 1

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Simulink - saw tooth signal minimum counter
Assuming that your signal has sharp corners .... One approach may be to: Input the signal into a Detect Increase block. The out...

4年以上前 | 0

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Transform or eliminate states of mechss object
Even garden variety ss objects can't have the system matrices changed one by one sys = rss(4,2,2) % model with four states, tw...

4年以上前 | 0

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Initializing parameters from an mfile function to a simulink file
If I understand your workflow correclty, it looks something like this: function simout = myfunction(inputarg) simparam1 = 5*...

4年以上前 | 0

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How to delay a loop in a function block?
I tried this in 2019a and it worked exactly as expected. The effect of the pause(1) is to make this (simple) simulation take 12 ...

4年以上前 | 0

質問

What's the Best Way to Symbolically Define the Periodic Extension of a Finite Duration Signal?
Suppose I have a finite duration signal: syms s(t) s(t) = triangularPulse(0,1,1.5,t); fplot(s(t)) Now I want to define the p...

4年以上前 | 1 件の回答 | 0

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ODE45 producing NaN values for a set of differential equations
One problem appears to be that the initial condition of x(5) is 0, which results in a divide by zero in the computation of theta...

4年以上前 | 1

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Unique Block Parameters for Multiple Instances of the Same Referenced Subsystem or Custom Library Subsystem?
Parameterize Instances of a Reusable Referenced Model might be useful doc page, if I understand the question correctily.

4年以上前 | 0

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Calculate the complementary bivariate normal.
I think you can use mvncdf as: Cb = mvndcf([alpha alpha],[inf inf],[0 0],[1 rho;rho 1])

4年以上前 | 1

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In 3 axis gyroscope the output (Wmeas) contains error or the output is without error?
Are you asking about a speciic gyro model provided in Matlab or is this a general question? In either case, the input to the th...

4年以上前 | 0

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How to write piecewise function in symbolic form?
Use &, not && syms x(t) x(t) = piecewise(-2 < t & t <= -1 , t+2, -1 < t & t <= 1, 1, 1 < t & t <= 2, -t+2, 0) fplot(x(t),'-o...

4年以上前 | 0

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fft tool - amplitude dependence vs. frequency
For pure sinusoidal signals, the "expected" result is only obtained when the length, N, of the FFT satisfies N = M*Fs/F1 where...

4年以上前 | 0

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How to use a matrix of 12*12 to form a matrix of 96*96?
It's too bad we can't do something like this: B = [1 2;3 4]; repeats = 2; % use a smaller example % R = blkdiag(repmat({B},1,r...

4年以上前 | 1

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Simulink continue simulation from last timestep
Unclear why Matlab Function blocks would slow anything down, at least not as a general rule. Save and Restore operating points ...

4年以上前 | 1

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Is there a way to input an array from the workspace into a Simulink model chunk by chunk/per simulation step?
Can you use a From Workspace block? Use your 20 x 3 array and uncheck the box for Interpolate Data.

4年以上前 | 0

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Can someone help me implement my Heaviside function into my Kuramoto model please?
The function H seems to do the opposite of what you want it do, i.e., it's zero over the desired range and one outside that rang...

4年以上前 | 0

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how to plot the result of convolution? ; used conv()
I assume you meant x(t) = sin(pi*t) (not sin(pi*x)). Let's rewrite: x(t) = sin(2 * pi / 2 * t). So x(t) has period T = 2 as ...

4年以上前 | 0

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designfilt and get the numerator and denominator coefficients of my filter
Trying to convert such a high order filter to a tf representation is likely not going to work well. Maybe consider implementing ...

4年以上前 | 1

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pulse train with gaussian pulses in an irregular interval
Can't the d input to pulstran be set to whatever offsets you want, random or otherwise? Taking the example from the pulstran do...

4年以上前 | 0

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Unable to find explicit solution to a very simple equation
The equation in the question is an inequality, but the supposed solution posed in the question is for an equality: syms x real ...

4年以上前 | 1

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How to load matlabFunction output into Simulink
matlabFunctionBlock can be used to generate a block directly into the Simulink model from the symbolic expression. It will only...

4年以上前 | 1

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Solving nonlinear system of ode in Simulink
The best way IMO is to get the equations in the form xdotdot = f(p,u,x,xdot), which you already did. But what did you mean by "...

4年以上前 | 0

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How to count number of pulses in a signal in Simulink
Similar problem addressed in this link.

4年以上前 | 0

質問

How do I get an Expression to Use the Value of a Variable that was Assigned after the Expression was Defined?
Suppose I assign to a sym as follows: syms z f g Define f in terms of z f = 2*z Now assign a value to z z = sym(2)*1i; But...

4年以上前 | 1 件の回答 | 0

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How to change Axes values to 'String' instead of 'numbers' on Simulink Scope?
Make the signal input to the scope a Simulink Enumeration type.

4年以上前 | 1

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How to create a vector of symbolic variables with specific labeling
v = [1 2 3 5 7 9 10 12 18 29]; vsym = sym('x',[v(1) v(end)]); vsym=vsym(v)

4年以上前 | 0

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speed up integrating the same function over many overlapping intervals?
In your question you said that fn is continuous. If it's sufficiently smooth, ideally with continuous first derivative, you can ...

4年以上前 | 0