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Alessandro Longo


Last seen: 1 year ago |  Active since 2017

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Parallel Computing Toolbox and parsim: two different versions of Matlab?
Hello everyone, I installed Parallel Computing Toolbox on my Matlab 2014a in order to run multiple Simulink runs but discovered...

1 year ago | 1 answer | 0

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answer

Question


Calculate coverage starting from .mat files
Hello everyone, I have a Simulink model .slx and several test sequences as .mat files. Is there a way to build a script so tha...

2 years ago | 0 answers | 0

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Out of memory and new computer
Hello forum, I have to re-run a simulation that requires to create very large arrays (up to 160.000.000 elements) but with my a...

6 years ago | 0 answers | 0

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answers

Question


Initial part of a response in Simulink: how to fade in?
Hello forum, I am trying to simulate the behavior of a 1x1 dynamic system, giving as input a sinusoidal signal (constant amplit...

6 years ago | 0 answers | 0

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answers

Question


Estimate MIMO state space from transfer function
Hello forum, I have some experimental transfer functions (3D matrix, 2x2x2049 so that, for each of the 2049 frequencies, there ...

7 years ago | 1 answer | 0

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answer

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How to predict the output of a known linear system?
Hello forum, in my workspace I have a linear MIMO (2x2) system (state space model, A, B, C and D matrices). I would design two ...

7 years ago | 0 answers | 0

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Question


How to simulate the time response of a linear dynamic system?
Hello forum, I have a dynamic model of a linear system (A, B, C and D matrices) and so it is known the FRF (H) of it. In partic...

7 years ago | 0 answers | 0

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answers

Question


How to create a state space model from a custom transfer function?
Hello forum, I would create a state-space model (A, B, C and D) starting from a proper-build transfer function H. In particula...

7 years ago | 1 answer | 0

1

answer

Question


How to interpolate only on a certain direction?
Hello, I have a series of matrix H of dimensions: 2x2x2049, defined for 2049 values of the frequency, from 0 to 3200 Hz. I wou...

7 years ago | 1 answer | 0

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answer

Question


Is there an alternative to lsim to calculate the forced response of a system?
Hello, I tried to use the lsim Matlab function in order to calculate the forced responses of a 2-DoF system. The problem is tha...

7 years ago | 0 answers | 0

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Question


Is the Fourier series the best way to decompose a sinusoidal signal?
Hello, I am looking for the best way to decompose a generic sinusoidal signal: in the picture below you can see my original sig...

7 years ago | 1 answer | 0

1

answer

Question


Define a symbolic variable and then calculate it later
Hello forum, I would build something like this: my_input = 2+0.5*t; with variable t not already defined. Then, in the s...

7 years ago | 0 answers | 0

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Question


How to increase elements of a vector without changing its plot?
Hello forum, I have a vector of x elements (57x1) that I would expand to a y-size vector (3000, for example) but without changi...

7 years ago | 2 answers | 1

2

answers

Question


Any idea on how to build this function?
Hello forum, I should build a MATLAB function that will plot the red function: <</matlabcentral/answers/uploaded_files/95960...

7 years ago | 2 answers | 0

2

answers

Question


How to approximate a linear function as a variable-step stair function?
Hello forum, I would approximate the red linear function with the green one, so a series of variable-width step (of course, the...

7 years ago | 0 answers | 0

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answers

Question


How to smooth a time signal?
Hello forum, I have this two time signals (plot from Simulink) and their respective amplitude-estimations. - blue signal and ...

7 years ago | 0 answers | 0

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Question


Matlab can not evaluate the maximum of an array?
Hello, I am trying this simple Simulink diagram: <</matlabcentral/answers/uploaded_files/93821/Untitled.jpg>> and I would...

7 years ago | 2 answers | 0

2

answers

Question


How to extract the constant phase of a sine wave?
Hello, I would extract the phase of a simple signal, for example a sine wave: phase = pi/2; x = sin(omega*t + phase); ...

7 years ago | 2 answers | 0

2

answers

Question


How to impose constraint in ode45 on output variable?
I have a system of this type <</matlabcentral/answers/uploaded_files/89386/system.JPG>> to solve with ode45. I already bui...

7 years ago | 0 answers | 0

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