DPSK


Also found in: Dictionary, Acronyms.

DPSK

(communications)
Differential Phase Shift Keying.

DPSK

(Differential Phase Shift Keying) A common form of phase modulation used in analog modems. DPSK does not require complex demodulation circuitry and is less susceptible to random phase changes in the transmitted waveform. See PSK, FSK and QPSK.
References in periodicals archive ?
kthRB [x.sub.k](m) [y.sub.k](m) [z.sub.k] = [h.sub.T] (m) 1 20 20 2 2 20 -20 2 3 -20 -20 2 4 -20 20 2 kthRB [f.sub.k] (kHz) Notes 1 2,399,800 Harmonic signal 2 2,399,850 Harmonic signal 3 2,399,900 Harmonic signal 4 2,400,100 DPSK; RB + MR
The scheme does not need the pulse carver at DPSK transmitter and can reduce deployment cost significantly.
Dynamic Pre-Shared Keys (DPSKs) are a unique feature for organizations that aren't ready to wade into the deep end of Wi-Fi BYOD security with 802.1X.
The new design win is for 40 Gb/s long haul communications in dense wavelength division multiplexing (DWDM) systems that utilizes 40Gb/s DPSK (differential phase-shift keying) modulation.
In 2009, GlobeNet upgraded a segment of its network with Xtera's NXT 20 Gbps Differential Phase Shift Key (DPSK) technology.
[5] Differential phase shift keying(DPSK): A phase modulation scheme in which the phase of a signal is modulated by 180 degrees corresponding to the digital data of "0" or "1".
Assuming that similitude, the GMSK modulation can be demodulated as a two staggered quadrature modulated binary phase shift keying (PSK) signal, (7, 8, 9) or as a differential phase modulation (DPSK), (8, 10) or as a frequency modulation.
The transmission breakthrough was made possible using the differential phase shift keying (DPSK) method, a new coding scheme for high-capacity communications developed at Bell Labs.
Each transmitter consisted of an optical source with 9 dBm output power, the phase of the output radiation of which was modulated using a DPSK modulator, which in its turn was driven by a flow of non-return-to-zero (NRZ) coded electrical pulses.
On the other hand, the performance of non-coherent technique, DPSK and FSK, are almost equal to coherent PSK and coherent FSK [22].