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I want a matlab code for coding

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Izeddin

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Hi
PLZ I want matlab code that solve this question
"I want to transmit this data "This is my coding project"
, by using linear coding
When (n=7,k=4)
And generation matrix is
g(x)=1+x+x3
then convert this data to ASCII code system
suppose occurring error every 8 bit during transmission
by founding the error we need to decoding and error correction "
I wait your replays
Thank you
 

hey i can give u brief idea that how to write code for cyclic code...try following code with matlab...


clc;
clear all;
close all;

n=7;
k=4;
gx=[1 1 0 1]
d=de2bi(0:2^k-1,'left-msb')
[i,px]= cyclgen(7,gx,'system')
g= circshift(px, [0, 4])
c=rem(d*g,2)
 
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    osam/

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Thank u very much Eng.jigisha
BEST REGARDS
 
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    osam/

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How are u Mr jigisha?
plZ
in the first I want to send this message "This is my coding project" using ascii code system
and the follow code I store the message then convet this message to ascii
******************
clc;
clear ;
msg='This is my coding project'
d1=dec2bin(unicode2native('This is my coding project'))

******************
then I want code that make d1 arry in one a row as this
10101001101000,............1110100

then I want code that make error every 8 bits
"change value of bits number 8,16,24,32,40,Etc "

This is the first stage
so I waiting your replies
BEST REGARDS
 

I wating your replies
BEST REGARDS
 

First stage matab code:

clc
clear all
msg='This is my coding project';
d1 = dec2bin(unicode2native(msg));

rows=size(d1,1);
cols =size(d1,2);

L = rows*cols;
e=1;
for i=1:rows
for j=1:cols
d(e)=d1(i,j);
e=e+1;
end
end



for p=1:L
if (mod(p,8)==0)
if (d(p)== '0')
dmod(p)='1';
else
dmod(p)='0';
end
end
if (mod(p,8)~=0)
dmod(p)=d(p);
end
end

-sv
 

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