CHIRP

Chirp

A chirp is a signal in which the frequency increases or decreases with time. In some sources, the term chirp is used interchangeably with sweep signal. It has also been called quadratic-phase signal. It is commonly used in sonar and radar, but has other applications, such as in spread spectrum communications. In spread spectrum usage, SAW devices such as RACs are often used to generate and demodulate the chirped signals. In optics, ultrashort laser pulses also exhibit chirp, which, in optical transmission systems interacts with the dispersion properties of the materials, increasing or decreasing total pulse ...

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chirp

Noun

  1. A short, sharp or high note or noise, as of a bird or insect.
  2. A pulse of signal whose frequency sweeps through a band of frequencies for the duration of the pulse.

Verb

  1. to make a short, sharp, cheerful note, as of small birds or crickets
  2. to speak in a high-pitched staccato


The above text is a snippet from Wiktionary: chirp
and as such is available under the Creative Commons Attribution/Share-Alike License.

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