An impulse train is a periodic sequence of Dirac delta functions, spaced at regular intervals:
$$ \sum_{n=-\infty}^{\infty} \delta(t - nT_s) $$where $T_s$ is the sampling period, and $n$ is an integer that indexes the impulses at regular intervals.
An impulse train is a periodic sequence of Dirac delta functions, spaced at regular intervals:
$$ \sum_{n=-\infty}^{\infty} \delta(t - nT_s) $$where $T_s$ is the sampling period, and $n$ is an integer that indexes the impulses at regular intervals.