In digital communications, chirp spread spectrum (CSS) is a spread spectrum technique that uses wideband linear frequency modulated chirp pulses to encode information. A chirp is a sinusoidal signal whose frequency increases or decreases over a certain amount of time. Below is an example of an upchirp—as you can see, the frequency increases linearly over time.
Famous quotes containing the words chirp and/or spread:
“Please do not take counsel of women who are so prejudiced that, as I once heard said, they would not allow a male grasshopper to chirp on their lawn; but out of your own great heart, refuse to set an example to such folly.”
—Frances E. Willard (1839–1898)
“Every thought is public,
Every nook is wide;
Thy gossips spread each whisper,
And the gods from side to side.”
—Ralph Waldo Emerson (1803–1882)