PSK
Noun
Meaning
Initialism of phase-shift keying.
Initialism of pre-shared key.
Source: en.wiktionary.orgSynonyms
Examples
A similar technology, IEEE 802.15.4 (the wireless standard used by ZigBee ) also relies on PSK using two frequency bands: 868 915 MHz with BPSK and at 2.4 GHz with OQPSK.
BPSK (also sometimes called PRK, phase reversal keying, or 2PSK) is the simplest form of phase shift keying (PSK).
If data-rates beyond those offered by 8- PSK are required, it is more usual to move to QAM since it achieves a greater distance between adjacent points in the I-Q plane by distributing the points more evenly.
Furthermore, IPsec VPNs using "Aggressive Mode" settings send a hash of the PSK in the clear.
Any number of phases may be used to construct a PSK constellation but 8-PSK is usually the highest order PSK constellation deployed.
Differential schemes for other PSK modulations may be devised along similar lines.