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PSK - technical definition
Also known as PM (Phase Modulation). A signal modulation technique that involves the carefully synchronized shifting of the phase (i.e., position) of the sine wave in order to represent digital bits across an analog carrier.The transmitting computer outputs a baseband electrical signal, defining 1 bits and 0 bits as discrete voltage levels. Binary phase-shift keying (BPSK) is a unibit technique in which a continuous sine wave pattern is interrupted and restarted at the baseline with a 180
See PSK in Computer
(1) See preshared keys.
(2) (Phase Shift Keying) A simple digital modulation technique that uses two different phase angles for 0 and 1. Quadrature PSK (QPSK) uses four phase shifts for each two bits of input. See phase modulation and DPSK.
Phase Shift Keying
PSK is a simple technique that uses two phases to represent 0 and 1.
Quadrature PSK
QPSK uses four phases 90 degrees apart to represent four values in each two bits (0-4) of input.