Quadrature Phase Shift Keying

GPTKB entity

Statements (24)
Predicate Object
gptkbp:instanceOf digital modulation scheme
gptkbp:abbreviation gptkb:QPSK
gptkbp:advantage spectral efficiency
susceptibility to noise
gptkbp:bits_per_symbol 2
gptkbp:category gptkb:phase_modulation
gptkbp:constellation_points 4
https://www.w3.org/2000/01/rdf-schema#label Quadrature Phase Shift Keying
gptkbp:inventedBy 1960s
gptkbp:modulatedBy digital signals
gptkbp:relatedTo gptkb:Binary_Phase_Shift_Keying
gptkb:8-PSK
gptkbp:symbol_mapping gptkb:Gray_coding
gptkbp:used_in Wi-Fi
cellular networks
wireless communications
satellite communications
modems
DVB-S
digital television broadcasting
gptkbp:uses four phase states
gptkbp:bfsParent gptkb:Binary_Phase_Shift_Keying
gptkb:QPSK
gptkbp:bfsLayer 6