In mathematics, a Dirac comb (also known as an impulse train and sampling function in electrical engineering) is a periodic Schwartz distribution constructed from Dirac delta functions
for some given period T. Some authors, notably Bracewell as well as some textbook authors in electrical engineering and circuit theory, refer to it as the Shah function (possibly because its graph resembles the shape of the Cyrillic letter sha ะจ). Because the Dirac comb function is periodic, it can be represented as a Fourier series:
Read more about Dirac Comb: Scaling, Fourier Series, Fourier Transform, Sampling and Aliasing, Use in Directional Statistics
Famous quotes containing the word comb:
“In Little Rock the people bear
Babes, and comb and part their hair
And watch the want ads, put repair
To roof and latch.”
—Gwendolyn Brooks (b. 1917)