Youssef Khmou
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Distance formula using while loop
In the given formulae, are the variables vectors? if it is the case, then you need to use index in the loop for each variable to...
presque 8 ans il y a | 0
reading frequency from fft
The first part of the program is correct, the result is 100 Hz: Fs = 65536; % Sampling Frequency (Hz) Ts = 1/Fs; % Sampli...
presque 8 ans il y a | 0
Generating wavepackets in MATLAB
Among the methods for generating wavepackets is linear superposition, considering the spatial dimension x, an elementary complex...
presque 8 ans il y a | 1
| A accepté
Randomly select samples from a matrix in proper order
The selection procedure can be performed by ordering the inputs from the smallest to the largets, here is an example, a vector o...
presque 8 ans il y a | 0
create a new matrix with elements from different sized matrices
By computing the difference between the two matrices A and B, find the indexes of the entries that equal zero and replace the en...
presque 8 ans il y a | 0
A soumis
J-V characteristic of solar cell
Current density and voltage Charateristic of solar cell using electron diffusion model
plus de 10 ans il y a | 5 téléchargements |
Need help on designing plot
defining the variable is the first step : x=0:pi/100:20*pi; using element wise operation : y=x.*sin(x); z=x.*cos(...
plus de 10 ans il y a | 0
| A accepté
How can i compute inverse of 3-dimensional matrix?
There is misunderstanding between the question and the provided example, according the question, Jhon's answer is correct, three...
plus de 10 ans il y a | 0
How Fourier Synthesis is performed using Matlab ?
Fourier synthesis is simple application of coefficients summation either numerically or symbolically, Fourier decomposition requ...
plus de 10 ans il y a | 3
A soumis
3D Brownian Motion
Fast simulation of three dimensional Brownian motion
plus de 10 ans il y a | 1 téléchargement |
Write a function that takes a vector xyz and returns as output two variables
try : function [Mav,Err]=myAver(u) % hint : use sum, length, std,...
plus de 10 ans il y a | 0
Variable Sampling Frequency Interpolation-hrv
An alternative solution exists using resample(x,p,q) function where the new signal is sampled with p/q times the original sampli...
plus de 10 ans il y a | 0
Filtering a set of recorded data
The important part of the problem is the implementation of MA filter, here is an example of 6 points window, fs=80; t=0:1...
plus de 10 ans il y a | 0
Trouble with Envelope Functions
try the following basic solution using Hilbert transform : fs=40; t=0:1/fs:4-1/fs; f=15; y=1.5*sin(2*pi*f*t).*exp(-1.1*...
plus de 10 ans il y a | 1
how can i plot spherical coordinate?
plotting in the same yields to polar coordinates, try polar(theta,rho); if it is different than the above case, explain ...
plus de 10 ans il y a | 0
Matlab - FFT/PSD Problem for Preemphasis
I think the first question is not well interpreted, maybe it consists of generating noisy version of y instead of white noise, i...
plus de 10 ans il y a | 0
Matlab - FFT/PSD Problem for Preemphasis
When using the reverse fft function, we take the real part, in one of the equations H.*G is not necessary since G=H.^-1, another...
plus de 10 ans il y a | 0
how to compare histograms
Many approaches exist for this purpose, the easiest way is the root mean square error metric, the minimum value means best match...
plus de 10 ans il y a | 0
Filter of sin component of sound signal
Concerning the equation of y, can you explain its origin. As for the error, initial condition must be set : y=zeros(size(x))...
plus de 10 ans il y a | 0
Hi all. I need to plot a Fast Fourier Transform(FFT) of a sinc function
Let us consider non causal function, we can use built in function as follows : Fs=42;Ts=1/Fs; t=-1:Ts:40*Ts-Ts; f=5; y...
plus de 10 ans il y a | 1
How to derivate a vector
additionally to the above answers, the simplest way to evaluate the polynomial is via anonymous function : f=@(x) x.^2+x-1...
plus de 10 ans il y a | 0
Preventing all [x,y] figures appearing when running a plot of a circle
Adding semi column (;) for all instructions inside the function will prevent the printing of values.
plus de 10 ans il y a | 0
How can i set (f) = (-60/(s^2+5s+48.5))?
Element wise operation fixes the error : f=-60./(s.^2+5*s+48.5);
plus de 10 ans il y a | 0
Trying to make a function for summing up 3 numbers. Explaination below
This function works for a vector of length n, with second logical output according to the description : function [Logical...
plus de 10 ans il y a | 0
How to I get a threshold value from looking at histogram
Otsu's method exists as built in function with name *graythresh*, here is an example taken from Mathworks help page : I = i...
plus de 10 ans il y a | 1
Matlab analytical FT and FFT comparison
numerical fft requires a shift if we want to visualize the spectrum with both negative and positive frequencies, scaling problem...
plus de 10 ans il y a | 0
Trying to make a function for summing up 3 numbers. Explaination below
the following answer is an alternative approach without using 'getdigits' function : function [C,y]=sum3(x) h=int2st...
plus de 10 ans il y a | 0
| A accepté
Driven Damped Pendulum Axes Question
The implementation is acceptable, the first remark is that visualization commands of results should be outside the loop, otherwi...
presque 11 ans il y a | 0
| A accepté
Is 'newplot' the reason why 'image' and 'plot' are no longer working on my computer?
In previous version of software it works correctly, if you have used the name 'image' for your constructed function, rename it. ...
presque 11 ans il y a | 0
Adding white gaussian Noise to 1D signals
To produce a unique sequence of white Gaussian noise, you need to reset the sate as follows : x=sin(2*pi*0.2*(0:0.1:10));...
presque 11 ans il y a | 0
| A accepté
