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IamMuhammadHasib/1. Digital to Digital Signal Conversion.md

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Created February 27, 2022 09:48
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Line Coding
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1. Digital to Digital Signal Conversion.md

Signal Convertion with Line Coding Technique

In MatLab

alt text

Raw
2. Unipolar_NRZ.m
load input.txt;
m = input;
n = length(m);
x = [];
y = [];
for i=1:n
x=[x i-1 i];
if(m(i)==0)
y=[y 0 0];
else
y=[y 1 1];
end
end
plot(x,y),axis([0,n,-2,2]);
title('Unipolar NRZ');
# tasfik
Raw
3. Polar_NRZ_L.m
load input.txt;
m = input;
n = length(m);
x = [];
y = [];
for i=1:n
x=[x i-1 i];
if(m(i)==0)
y=[y 1 1];
else
y=[y -1 -1];
end
end
plot(x,y),axis([0,n,-2,2]);
title('Polar NRZ L');
Raw
4. Polar_NRZ_I.m
m = [0 1 0 0 1 1 1 0];
n = length(m);
x = [];
y = [];
a=1;
for i=1:n
x=[x i-1 i];
if(m(i)==1)
y=[y -a -a];
else
y=[y a a];
end
a=y(length(y));
end
plot(x,y),axis([0,n,-2,2]);
title('Polar NRZ I');
Raw
5. Polar_RZ.m
m = [0 1 0 0 1];
n = length(m);
x = [];
y = [];
for i=1:n
x=[x i-1 i-1+0.5 i-1+0.5 i];
if(m(i)==0)
y=[y -1 -1 0 0];
else
y=[y 1 1 0 0];
end
end
plot(x,y),axis([0,n,-2,2]);
title('Polar RZ');
Raw
6.Manchester.m
m = [0 1 0 0 1 1];
n = length(m);
x = [];
y = [];
for i=1:n
x=[x i-1 i-1+0.5 i-1+0.5 i];
if(m(i)==0)
y=[y 1 1 -1 -1];
else
y=[y -1 -1 1 1];
end
end
plot(x,y),axis([0,n,-2,2]);
title('Manchester');
Raw
7. Diff_Manchester.m
m = [0 1 0 0 1 1];
n = length(m);
x = [];
y = [];
a = 1;
for i=1:n
x=[x i-1 i-1+0.5 i-1+0.5 i];
if(m(i)==0)
y=[y -a -a a a];
else
y=[y a a -a -a];
end
a=y(length(y));
end
plot(x,y),axis([0,n,-2,2]);
title('Differential Manchester');
Raw
8. Bipolar_AMI.m
m = [0 1 0 0 1 0];
n = length(m);
x = [];
y = [];
a=1;
for i=1:n
x=[x i-1 i];
if(m(i)== 1)
y=[y a a];
a=a*(-1);
else
y=[y 0 0];
end
end
plot(x,y),axis([0,n,-2,2]);
title('Bipolar AMI');
Raw
9. Bipolar_Pseudoternary.m
m = [0 1 0 0 1 0];
n = length(m);
x = [];
y = [];
a=1;
for i=1:n
x=[x i-1 i];
if(m(i)== 0)
y=[y a a];
a=a*(-1);
else
y=[y 0 0];
end
end
plot(x,y),axis([0,n,-2,2]);
title('Bipolar Pseudoternary / opposite of AMI');
Raw
_10. MLT_3.m
m = [0 1 0 1 1 0 1 1];
n = length(m);
x = [];
y = [];
cur_lvl=0;
last_non_zero_lvl=-1;
for i=1:n
x=[x i-1 i];
if(m(i)==0)
y=[y cur_lvl cur_lvl];
else
if(cur_lvl~=0)
y=[y 0 0];
cur_lvl=0;
else
y=[y -last_non_zero_lvl -last_non_zero_lvl];
last_non_zero_lvl = last_non_zero_lvl*(-1);
cur_lvl = last_non_zero_lvl;
end
end
end
plot(x,y),axis([0,n,-2,2]);
title('MLT-3');
Raw
_10_1. MLT_3.md

alt text

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