Community Profile

# Ahmed Grera

Last seen: mehr als 2 Jahre vor Aktiv seit 2017

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

#### Statistiken

Abzeichen anzeigen

#### Content Feed

Anzeigen nach

Frage

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

mehr als 5 Jahre vor | 1 Antwort | 0

### 1

Antwort

Frage

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)

mehr als 5 Jahre vor | 0 Antworten | 0

### 0

Antworten

Frage

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

mehr als 5 Jahre vor | 1 Antwort | 0

### 1

Antwort

Beantwortet
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 ...

etwa 6 Jahre vor | 0

| akzeptiert

Frage

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...

etwa 6 Jahre vor | 2 Antworten | 0

### 2

Antworten

Frage

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...

etwa 6 Jahre vor | 1 Antwort | 0

### 1

Antwort

Beantwortet
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)

etwa 6 Jahre vor | 0

Frage

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

etwa 6 Jahre vor | 2 Antworten | 0

### 2

Antworten

Beantwortet
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)

etwa 6 Jahre vor | 0

Frage

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...

etwa 6 Jahre vor | 2 Antworten | 0

Antworten