Encyclopedia > Phase noise

Article Content

Phase noise

In an oscillator, phase noise is rapid, short-term, random fluctuations in the phase of a wave, caused by time domain instabilities.

Phase noise, L(f) in decibels relative to carrier power[?] (dBc[?]) on a 1-Hz bandwidth, is given by:

L(f) = 10log[0.5(S _φ(f ))]

where S _φ(f ) is the spectral density of phase fluctuations.

Source: Federal Standard 1037C

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Flapper

... was already doccumented as in use in the United Kingdom as early as 1912. Writers and artists in the United States such as F. Scott Fitzgerald, John Held, Jr.[?], and ...