Line Coding

1. Digital to Digital Signal Conversion.md

Signal Convertion with Line Coding Technique

In MatLab

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

2_1. Unipolar_NRZ.md

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');

3_1. Polar_NRZ_L.md

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');

4_1. Polar_NRZ_I.md

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');

5_1. Polar_RZ.md

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');

6_1. Manchester.md

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');

7_1. Diff_manchester.md

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');

8_1. AMI.md

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');

9_1. Pseudoternary.md

_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');

_10_1. MLT_3.md

input.txt

1 0 1 1 0

Thanks for sharing 👍
Will Appreciate it, if you add UnipolarReturn to Zero (RZ)

Thanks for sharing 👍 Will Appreciate it, if you add UnipolarReturn to Zero (RZ)

ip = input('Enter the last two digit of ID: ');
bin = dec2bin(ip);
m = sprintf('%s', bin)-'0';
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 0 0 0 0];
else
y=[y 1 1 0 0];
end
end

plot(x,y,'color', 'r','Linewidth',1.5);
axis([0,n,-2,2]);
title('Unipolar RZ');
xlabel('Time');
ylabel('Amplitude');
grid on;

ax = gca;
ax.GridLineStyle = '--';
ax.GridAlpha = 0.2;

for k=1:n
text(k-0.55,1.4,num2str(m(k)));
end