回答済み
Cumulative sum in Simulink
The Discrete-Time Integrator block can be configured as an accumulator.

4年弱前 | 1

回答済み
How do I construct the dft response of hanning window
Hi Sahil, The code doesn't show the values of N and T used, so I'll make up my own. N = 64; % T = 1; Changed the next line s...

4年弱前 | 0

| 採用済み

質問

Does surf() Behave as Expected with ndgrid() Inputs?
Define a function clear f = @(x,y) x; Case 1: square mesh, meshgrid, vector inputs to surf x = 0:5; y = 100:105; [Xmesh,Ym...

4年弱前 | 1 件の回答 | 0

1

回答

回答済み
Calculate convolution of two given continuous signals in matlab
Closed form solution using symbolic math syms t tau real f1(t) = rectangularPulse(-5,5,t); f2(t) = exp(-t)*heaviside(t); y1(...

4年弱前 | 1

| 採用済み

回答済み
Why does MATLAB (Symbolic Math Toolbox) not integrate this simple function.
syms x a real I = int(simplify((1-x^2/a^2)^(3/2)),x,-a,a)

4年弱前 | 0

回答済み
Behavior of isPassive and hinfnorm.
Hi Siva, I'm not able to load the .mat file, so can't really look at the problem. load('https://www.mathworks.com/matlabcentra...

4年弱前 | 1

回答済み
Question on use of fft and using positive frequency values only
Is this just an indexing question? If I understand the code snippet correctly, the frequency vector starts at 0, and incremente...

4年弱前 | 0

| 採用済み

回答済み
How do I solve a symbolic system for a certain vector?
Hi Vitor, To make sure I understand the question, it assumes that a rigid body can have a constant, non-zero angular velocity v...

4年弱前 | 1

回答済み
Adding a delay in state space form
The command sys=ss(A,B,C,D,'InputDelay',theta,'OutputDelay',0); puts a delay on the input signal, i.e., at the output of the a...

4年弱前 | 0

| 採用済み

回答済み
DFT amplitude differs from CFT amplitude
Hi An, A couple of issues with the code, addressed below. T_ech = 5E-5; y = [0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0]; t = [T_ec...

4年弱前 | 0

| 採用済み

回答済み
Step response and Impulse response of IIR filter
Hi Alex, It would be helpful to know the value of temp. Absent that, it seem like [hstep,tstep] = stepz(sos); hstep = hstep*...

4年弱前 | 0

| 採用済み

回答済み
Incorrect Integrator Behaviour Simulink
It looks like the input sine wave is sin(2*pi/2*t) = sin(pi*t) The output of the integrator should be -1/pi*cos(pi*t) + C B...

4年弱前 | 1

| 採用済み

回答済み
Change the size of a log in simulink
Double click the ToWorkspace block and increase the Decimation parameter. If you really need all of the data, maybe something m...

4年弱前 | 0

回答済み
Designing an Observer - Control System
I don't think you're going wrong anywhere (though you might want use size(Aa,1) instead of length(Ca) in a few places). I think ...

4年弱前 | 0

回答済み
Plot a 2D Gaussian prior
Something like this? mu = [1 1]; Sigma = [1 .7*1*sqrt(2); .7*1*sqrt(2) 2]; [X,Y] = meshgrid(-2:.1:4); p = mvnpdf([X(:) Y(:)]...

4年弱前 | 0

| 採用済み

質問

Is exp() a Documented Function in the Symbolic Math Toolbox?
I can't find it.

4年弱前 | 3 件の回答 | 0

3

回答

回答済み
adding a communication delay in simulink
Try using the LTI System block.

4年弱前 | 0

| 採用済み

回答済み
Calculate convolution of two given continuous signals in matlab
Assuming a closed form solution is desired this problem can be solved with the Symbolic Math Toolbox syms rectangularPulse in...

4年弱前 | 2

回答済み
Why do the eul2quat and quaternion functions differ on the calculated results?
Hi cui, I think that both eul2quat and quaternion('frame') are using, right-handed, intrinsic rotations and the sequence of rot...

4年弱前 | 1

回答済み
roots(x) vs root= interp1(y,x,0)
The query points in x are spaced too far apart for the linear interpolation used by interp1 to be accurate relative to the actua...

4年弱前 | 0

回答済み
Fourier transform of a rectangular pulse
Hi Luke, Your original code was o.k. except for plotting against t. It is typically plotted against an array of frequencies. Al...

4年弱前 | 1

回答済み
Calculation of Phase margin
Hi T, it's a tricky problem becase of the shape of the gain curve around the phase cross over frequency. w=1.4910; k=sqrt((w^4...

4年弱前 | 0

| 採用済み

回答済み
Find the impulse response
Hi Marina, Sometimes the Symbolic Math Toolbox works in mysterious ways and it is difficult to manipulate expressions into simp...

4年弱前 | 1

| 採用済み

回答済み
Function 'odeToVectorField' introduces undesired 'free' variable
By default, the Symbolic Toolbos assumes all variables are complex. So using the ' operator, which is the complex transpose oper...

4年弱前 | 2

| 採用済み

回答済み
Within a script, can I close or redirect a Windows File Explorer window opened with 'winopen'?
Maybe using an actxserver is a viable approach. I've used it for interacting with Power Point. It's not so bad once you get the...

4年弱前 | 0

回答済み
How can I remove this error?
Either: a) double click on the Audio Device Writer block and uncheck the box for Inherit Sample Rate from Input and set the des...

4年弱前 | 0

| 採用済み

回答済み
I'm not sure if a user defined MATLAB function is executing or not in Simulink.
Consider replacing the threshold crossing detection functionality in spike_checker with a self resetting integrator. Feed the s...

4年弱前 | 0

回答済み
Different results when compearing DFT from fft to the "real" fourier transformation
Hi Lillebror, Referring only to the code in the original question, it looks like there is a mix up between the variables used t...

4年弱前 | 1

回答済み
What frustrates you about MATLAB? #2
It would be nice if I could open a file in the editor as read-only, click somewhere to set the editor for read only after a file...

4年弱前 | 0

回答済み
Most effective way to solve nonhomogeneous linear ODE problem
Hello Michal, Following up on this comment, I'd be concerned about the solution of the "reference" method if that's what's bein...

4年弱前 | 1

| 採用済み