Encyclopedia > Quadrature phase-shift keying

Article Content

Quadrature phase-shift keying

Quadrature phase-shift keying is a form of modulation in which a carrier is sent in four phases, 45, 135, 225, and 315 degrees, and the change in phase from one symbol to the next encodes two bits per symbol.

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

East Hampton North, New York

... of 18 living with them, 44.2% are married couples living together, 12.2% have a female householder with no husband present, and 39.0% are non-families. 31.9% of a ...