clc

clear all;

$\%$ Generating the bit pattern with each bit $50$ samples long

nB $=20$; $\%$ number of bits

b $=$ randi$([01],1,$nB$)$;

$\%$ convert bit to NRZ pattern

sB $=40$; $\%$ sample per bit

bNRZ $=$ ones$($sB$,$ nB$)$;

bNRZ $=$ bNRZ$.*(2*$repmat$($b$,$sB$,1)-1)$;

bNRZ $=$ reshape$($bNRZ$,1,$ nB$*$sB$)$;

$\%$ plot original bit sequence

subplot$(4,1,1)$; plot$($bNRZ$)$; axis$([-1$ length$($bNRZ$)+1-1\mathrm{.}51\mathrm{.}5])$;grid on;

title$(\text{'}$Original Bit Sequence'$)$;