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Ahmed Grera


Last seen: casi 3 años hace |  Con actividad desde 2017

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Ahmed M. A. Annekaa

Engineer in college of electronic technology, Bani Walid -Libya.
Interested in Microstrip Antenna and Signal Processing.

Skills: Windows xp, 7,8 and 10, dealing with Android and IOS, MATLAB, HFSS, Multisim, Data and Communications networks installation and Microsoft Office Suite: Word, Excel, PowerPoint, and Adobe Photoshop.

Certificates: Mini MBA, ICDL, Optical fiber, HFSS (for antennas design) and experience in WiMax maintenance.

Email: ahmedgrera88@gmail.com
Phone: 00218928073023
facebook: https://www.facebook.com/ahmed.grere
LinkedIn: https://www.linkedin.com/feed/?trk=

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Pregunta


How do filtic and filter functions work ?
% y[n]+y[n-1]-6y[n-2]=x[n] % x[n]=8u[n] % y[-1]=1, y[-2]=-1

casi 6 años hace | 1 respuesta | 0

1

respuesta

Pregunta


How we can apply Z-transform of the following operators in MATLAB ?
1- x(n)=δ(n) 2- δ(n-4) 3- 2^n u(n-3)

casi 6 años hace | 0 respuestas | 0

0

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Pregunta


How we can enter the following operators in MATLAB ?
1- x(n)=δ(n) 2- δ(n-4) 3- 2^n u(n-3)

casi 6 años hace | 1 respuesta | 0

1

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Respondida
How can i implement galois counter mode (GCM) in matlab?
Hi Darsana P M You can retype it like this: clc; clear all; close all; x=[0 1 1 0 1 1 0 1]; Z=[0 0 0 0 0 0 ...

más de 6 años hace | 0

| aceptada

Pregunta


I have a question in image processing, this code shows how to add noise to the image and then retrieve it again ... The problem when retrieving the image error occurs and show the image that was retrieved in white
img = imread( ('eight.tif') ); % read image, use gray-level images here. A = imnoise(img,'Gaussian',0,1); IMG = fft2( im...

más de 6 años hace | 2 respuestas | 0

2

respuestas

Pregunta


Error using .* Integers can only be combined with integers of the same class, or scalar doubles.
clc clear all close all lena = imread('eight.tif'); A = fftshift(fft2(lena)); S = imnoise(lena,'Gaussian',0...

más de 6 años hace | 1 respuesta | 0

1

respuesta

Respondida
I have a matrix which is 1000 columns and 3621 rows, how do I take the mean of each row?
clc clear all a=[1 2 3;4 5 6;7 8 9] % Replace this matrix with your matrix mean(a,2)

más de 6 años hace | 0

Pregunta


what is the wrong in this code?
clc clear all close all lena = imread('eight.tif'); A = fftshift(fft2(lena)); S = imnoise(lena,'Gaussian',...

más de 6 años hace | 2 respuestas | 0

2

respuestas

Respondida
I am new to Matlab and I am looking for help regarding this questions as attached
clc clear all a=zeros(8,5); % zeros matrix for i=1:1:40 a(i)=i; end b=a' % transpose of matrix (a)

más de 6 años hace | 0

Pregunta


I have a question in image processing, this code shows how to add noise to the image and then retrieve it again ... The problem when retrieving the image error occurs and show the image that was retrieved in white
img = imread( ('eight.tif') ); % read image, use gray-level images here. A = imnoise(img,'Gaussian',0,1); IMG = fft2( im...

más de 6 años hace | 2 respuestas | 0

2

respuestas