Answered

Visualising symbols inside the tranfer fcn block in Simulink

Make the Transfer Fcn block a little bit bigger by selecting it and stretching it with the mouse.

Visualising symbols inside the tranfer fcn block in Simulink

Make the Transfer Fcn block a little bit bigger by selecting it and stretching it with the mouse.

30 days ago | 0

| accepted

Answered

get specific magnitude response value given a specific frequency from a freqz graph

freqz accepts a third argument that allows the user to specify the desired angular frequencies to evaluate (it must have at leas...

get specific magnitude response value given a specific frequency from a freqz graph

freqz accepts a third argument that allows the user to specify the desired angular frequencies to evaluate (it must have at leas...

30 days ago | 0

Answered

Why I get two different covariance matrix?

Hi Ali, Perhaps Prof. Ng has some additional assumptions about the data that aren't included in your question. To compute the c...

Why I get two different covariance matrix?

Hi Ali, Perhaps Prof. Ng has some additional assumptions about the data that aren't included in your question. To compute the c...

1 month ago | 1

| accepted

Answered

Is it possible to solve multiple linear systems of equations in parallel with one matrix operation?

Hi Bill, pagemldivide introduced in 2022a can do the trick. Whether or not this is really better than the loop .... Aa = [ 0.8...

Is it possible to solve multiple linear systems of equations in parallel with one matrix operation?

Hi Bill, pagemldivide introduced in 2022a can do the trick. Whether or not this is really better than the loop .... Aa = [ 0.8...

1 month ago | 0

| accepted

Answered

I should convolve my signal with which function to have the signal itself?

Hi Donya, dirac is only defined in the Symbolic Math Toolbox and so should only be used for symbolic math, and only for continu...

I should convolve my signal with which function to have the signal itself?

Hi Donya, dirac is only defined in the Symbolic Math Toolbox and so should only be used for symbolic math, and only for continu...

1 month ago | 0

Answered

Error when taking the continuous time Fourier transform

Using some examle data ... A = 1:5; std_A = 11:15; syms t w real f(t) = sum(exp(-t./A))*heaviside(t) std_ft(t) = sqrt(sum((...

Error when taking the continuous time Fourier transform

Using some examle data ... A = 1:5; std_A = 11:15; syms t w real f(t) = sum(exp(-t./A))*heaviside(t) std_ft(t) = sqrt(sum((...

1 month ago | 0

| accepted

Answered

How to model second order nonliniar in simulink

Hi Barak Bar-on, I depends on the form of the matrices and what you consider easy. If you already have a .m function in Matlab...

How to model second order nonliniar in simulink

Hi Barak Bar-on, I depends on the form of the matrices and what you consider easy. If you already have a .m function in Matlab...

1 month ago | 0

Answered

how to load this function into simulink

Hi arsal Though not required, you can replace the function making_values_input with a Mux block. Double click on predictActivi...

how to load this function into simulink

Hi arsal Though not required, you can replace the function making_values_input with a Mux block. Double click on predictActivi...

1 month ago | 0

Answered

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 ...

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 ...

1 month ago | 0

| accepted

Answered

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 ...

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 ...

1 month ago | 0

| accepted

Answered

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.

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.

1 month ago | 0

Answered

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...

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...

1 month ago | 0

Answered

looking for a way to find the largest input from 10 signals in simulink

How about the MinMax block?

looking for a way to find the largest input from 10 signals in simulink

How about the MinMax block?

1 month ago | 0

| accepted

Answered

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...

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...

1 month ago | 0

Answered

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...

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...

1 month ago | 0

Answered

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...

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...

1 month ago | 0

Answered

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]...

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]...

2 months ago | 1

| accepted

Answered

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...

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...

2 months ago | 0

Answered

Transformation of state space model

It sounds like the Question is about forming a feedback loop. In this case use feedback.

Transformation of state space model

It sounds like the Question is about forming a feedback loop. In this case use feedback.

2 months ago | 0

Answered

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 .... ...

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 .... ...

2 months ago | 1

Answered

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(...

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(...

2 months ago | 0

| accepted

Answered

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...

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...

2 months ago | 2

| accepted

Answered

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...

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...

2 months ago | 0

| accepted

Answered

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 -...

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 -...

2 months ago | 1

| accepted

Answered

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...

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...

2 months ago | 1

| accepted

Answered

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. ...

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. ...

2 months ago | 0

Answered

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...

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...

2 months ago | 1

| accepted

Answered

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(...

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(...

2 months ago | 1

| accepted