For binary baseband signalling of rate $(1)/($T$\_($b$)),$ consider following pulse shape:

p$($t$)=\backslash$Delta $(($t$)/(2$T$\_($b$)))$

$($a$)$ For a random data sequence of $1011001010001101,$ sketch the baseband signal waveforms if the line code is $($i$)$ polar; $($ii$)$ o$($n$)/($o$)$ff; $($iii$)$ bipolar; $($iv$)$ duobinary.

$($b$)$ Sketch the eye diagram of duration $2$T$\_($b$)$ for the $4$ line codes of part $($a$)$ using the same pulse shape p$($t$).$