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

From Author,

Don't forget to add the input file in your MatLab directory because some codes read their inputs from the input.txt file.

If you happen to meet the author do offer him a mug of coffee

Don't forget to give a star ✨

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