# Federico Paolucci

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**Content Feed**

Question

How to represent a Morphological structuring element

Hi, I know that I can use "strel" to represent a structural element: SE = strel("disk",r) In strel "r" is constant but in my c...

7 days ago | 0 answers | 0

### 0

answersQuestion

When simulating the response to a specific input signal, the input data U must be a matrix with as many rows as samples in the time vector T

Hi, this error is occurred. Error using DynamicSystem/lsim When simulating the response to a specific input signal, the input ...

2 months ago | 1 answer | 0

### 1

answerQuestion

When simulating the response to a specific input signal, the input data U must be a matrix with as many rows as samples in the time vector T

Hi, this error is occurred. Error using DynamicSystem/lsim When simulating the response to a specific input signal, the input ...

2 months ago | 0 answers | 0

### 0

answersQuestion

Index in position 2 exceeds array bounds

Hi, I have this script %% % DEFINIZIONE PARAMETRI DINAMICI %DEFINIZIONE vettore frequenze F_plot=400; %...

2 months ago | 0 answers | 0

### 0

answersQuestion

Index exceeds the number of array elements. Index must not exceed 0.

hi, this error is occurred these are the files "freq_prop.mat" and "pffe.txt" Can I solve this problem about matrix ...

2 months ago | 1 answer | 0

### 1

answerQuestion

The "A" and "B" matrices must have the same number of rows.

Hi, this error is occurred... In flexsspf (line 50) In untitled34 (line 43) Error using ss The "A" and "B" matrices must ha...

2 months ago | 0 answers | 0

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answersQuestion

Not enough input arguments.

Hi, this error is occurred Not enough input arguments. Error in flexsspf (line 34) PF1=strcmp(PF,''); this is the script ...

2 months ago | 1 answer | 0

### 1

answerQuestion

Unrecognized function or variable 'RESB'.

Hi, this errors are occurred: Warning: Function input has the same name as a MATLAB builtin. We suggest you rename the function...

2 months ago | 1 answer | 0

### 1

answerQuestion

Error: The length of the segments cannot be greater than the length of the input signal.

Hi, I'm using the time2psd function to run a script. however the command window gives me this error ("Input" is the script I...

2 months ago | 1 answer | 0

### 1

answerQuestion

Check for incorrect argument data type or missing argument in call to function 'diff'

hi, I have a problem with function specinterp, command window shows this error: Check for incorrect argument data type or mis...

2 months ago | 1 answer | 0

### 1

answerQuestion

error script invalid input arguments

Hi, I've received these errors running a script: error: fieldnames: Invalid input argument error: called from fieldna...

3 months ago | 0 answers | 0

### 0

answersQuestion

psd2time function doesn't work

Hi, I'm trying to obtain a random time history from a rectangular PSd through the function "psd2time". after running the script,...

3 months ago | 0 answers | 0

### 0

answersQuestion

FRF (frequency response function) quarter car

Hi, How can I obtain the frequency response function (FRF) of a quarter car model? if possible, I need an example of script. tha...

3 months ago | 1 answer | 0

### 1

answerQuestion

frequency response function , transfer function and natural frequencies

Hi, how can I find the transfer function that would give me a frequency response with two peaks, one at about 4 Hz, that is, the...

3 months ago | 0 answers | 0

### 0

answersQuestion

bode diagram of the quarter car

hi, how can i make the bode diagram of a quarter car model via matlab? in order to highlight the resonant frequency.

3 months ago | 1 answer | 0

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answerQuestion

square wave not "limited"

hi, I produced this square wave signal, but as you can see the square peaks have no upper limit. how can i solve? x=0.03*sq...

3 months ago | 2 answers | 0

### 2

answersQuestion

how can i do an exponential interpolation

hi, all how can i do an exponential interpolation, what function?

3 months ago | 0 answers | 0

### 0

answersQuestion

use findpeaks function for interpolation of signal peaks with damped sinusoidal oscillation

hi all, i'm trying to calculate the damping coefficient of an object by interpolating the peaks of the acceleration signal. I wa...

3 months ago | 1 answer | 0