Dirac Comb Function

Dirac comb function, also known as shah function, impulse train or sampling function is an infinite series of Dirac delta functions seperated by intervals of some time period T.

Formula: \(\text{Ш}_T(t):=\sum\limits_{k=-\infty}^{\infty}{\delta(t-kT)}\)

The Cycrillic letter Ш (sha) was chosen because the graph