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Applying an anti-aliasing filter
I think all that we are seeing is the effect of sampling the contiuous signal, nothing to do with aliasing. Let's look at just ...

4年弱前 | 0

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How to calculate the 95% (area under the curve) of Kernel probability density curve?
The function icdf can find the values of x such that P(X < x) = 0.05 and 0.95. Use those values with xline to add the vertical ...

4年弱前 | 0

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How to transfer output from simulink into m-file in real time
Asusming the loop only needs the output of the simulation after the simulation completes ... Use the sim command.

4年弱前 | 0

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Using the lowpass function
The only way to suppress the plot output is to specify at least one output argument (or use lowpass() in an expression, like 1*l...

4年弱前 | 0

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looking for a way to find the largest input from 10 signals in simulink
How about the MinMax block?

4年弱前 | 0

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FFT giving undesired answer
Hi Cole, As you've already accepted an answer, perhaps you already have what you need. But I thought it might be helpful to add...

4年弱前 | 0

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How to use Convolution in Simulink?
I think this model does what you're looking for. Here is the model that uses the convolution sum to approximate the convolution...

4年弱前 | 0

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Sensitivity analysis in simulink
This page might be of interest.

4年弱前 | 0

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Compute Probability of a Multivariate Normal Distribution over Polytope
Hi Michael, If A is nonsingular, perhaps a change of coordinates will work % z = A*x muz = A*mux; Sigmaz = A*Sigmax*A.'; Pr...

4年弱前 | 0

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Warning: Imaginary parts of complex X and/or Y arguments ignored.
Hi Matthew, Why is dhdt the output argument of this line? [t, dhdt] = ode45(@thesis, tspan, [240]); Shouldn't this be [t, h]...

4年弱前 | 1

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how to inverse transfer function simulink
Hi Stanley. First off you'll need to factor out the exp(-s) and implement that with a Transport Delay block. For the non-prope...

4年弱前 | 0

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Transformation of state space model
It sounds like the Question is about forming a feedback loop. In this case use feedback.

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How to do Feedback Loop on Simulink with different frequinces
I'm assuming the question is how to run the same simulation multiple times for different frequencies. With this assumption .... ...

4年弱前 | 2

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How to generate all possible vectors where each element can take one of two values
a = [1 2 3]; b = [4 5 6]; n = numel(a); C = mat2cell([a; b],2,ones(1,n)); [D{1:n}] = ndgrid(C{:}); E = sortrows(cell2mat(...

4年弱前 | 0

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how to find the right frequency axis when we take the Fourier transform of a function?
Hi Donya, By default, the frequency variable for fourier in the Symbolic Math Toolbox is in rad/sec. Also, Matlab definition o...

4年弱前 | 2

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Pade approximant in Transport delay block
What exactly is the confusion? Increasing the order of the Pade approximant should have no effect on simulation run time or sim...

4年弱前 | 0

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Discrete values in DFT
Hi Sahil, In general: Let x(t) be a continuous-time signal, i.e., where the inedpendent variable, t, is any real number with -...

4年弱前 | 1

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matlabFunction() generating intermediate terms that place the integrand outside integral()
A couple of suggestions on the code. As a general rule IMO, it's best to specify all relevant assumptions on the variables. For...

4年弱前 | 1

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help in runge kutta 4 2nd order with establishing the functions
Ok. Let y1 = q and let y2 = qdot (or y2 = q and y1 = qdot if preferred) Then the first equation we need is y1dot = qdot = y2. ...

4年弱前 | 0

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How to change from scientific form to decimal form using continuous and discrete transfer functions?
Hi Edward, It would be immensely helpful to show a simple example with an actual result and explain what the preferred result w...

4年弱前 | 1

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Convert sym to double
Hi @Mark, The first problem with the code is in this area W=zeros(1,len); for i=1:len m=mn{f}(i) W(...

4年弱前 | 2

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Function solve cannot find explicit solution with 'ReturnConditions'=true but it finds when it is false
Verifying same behavior in 2022a syms t2 t a b ab at bt a2 b2 N x T T0 k assume(N ~= 0 & T ~= 0 & k ~= 0) eq1 = ab == a2*x + ...

4年弱前 | 0

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simplify function does not work properly
Consider a simpler case syms x y term1 = x - 1; term2 = y - 2; eq = term1*term2 assume(term1*term2 == 0) simplify(eq) sim...

4年弱前 | 0

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Closed form not the same as the discrete form
Hi Tworit, I'm not quite following how the code is trying to implement equation 41 from the linked page. Here is one way to cre...

4年弱前 | 0

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Removing all elements from a struct field
Does rmfield meet the need? % create a struct for example for ii=1:13 aap.acq_details.sessions(ii).name = ii; end aap.acq_d...

4年弱前 | 0

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Graphs using ode45 do not look like they should. Why is time vector not a linear set?
Hi Josh, Maybe the plots are deceptive. Running the code exactly as given, except for the plotting, shows that v is the derivat...

4年弱前 | 0

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FT and Amplitude Phase plot in matlab
The code as shown has at least two issues. When using symbolic math, need to declare variables appropriately syms t w real Bec...

4年弱前 | 1

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Add Fields to an existing Structure
S.Level0=0; f = {'SubLevel0','SubLevel1','SubLevel2','Text'}; cvar = '1234'; S = setfield(S,'Level1',f{:},cvar); S.Level0 S...

4年弱前 | 2

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please help to fix my code for 4th order Runge Kutta method for second order ODE.
Hi Siti Nafisah Bekti Lelana, Why do you think it's the wrong answer? I didn't check the equations, but the code seems to yield...

4年弱前 | 0

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calculate the Γ matrix in MATLAB from Φ Matrix - State space equation
Let's see what we have so far: A = [0 1; -1 -1]; b = [0;1]; I = eye(2); syms s; LaplaceTransitionMatrix = (s*I-A)^-1 phi =...

4年弱前 | 2

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