differential phase

differential phase

[‚dif·ə′ren·chəl ′fāz]
(electronics)
Difference in output phase of a small high-frequency sine-wave signal at two stated levels of a low-frequency signal on which it is superimposed in a video transmission system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The Multi-rate Differential Phase Shift Keying (DPSK) Optical Communication modem developed by MIT Lincoln Laboratory provides the FSOC technology base for NASA's next-generation near-Earth satellite communications capability and forms the basis for the United States' first FSOC satellite communications standard, which is under development with the International Consultative Committee for Space Data Systems (CCSDS) standards body today.
Also, antenna-polarization errors cause cross coupling that biases [Z.sub.DR] as a function of copolar differential phase [[phi].sub.DP] when using SHV mode (Wang and Chandrasekar 2006; Hubbert et al.
Compared with the long wavelength (e.g., S- and C-band) radars, short wavelength (e.g., X-band) radars have some advantages, including smaller-sized antenna and higher sensitivity of the differential phase shift to rain rate.
The top layer schematic of the system, as shown in Figure 2, consists of five modules: differential phase detector (DPD), digital filter (DF), biphasic clock source (B_CLO), controller (S_CON), and frequency divider (DVF).
This research was performed in a 4-channel 40 Gbps WDM transmission system with binary differential phase shift keying (BDPSK) modulation.
Differential phase shift keying does not have determined symbols in constellation diagram as it is in common PSK, but it has a table of phase shifts (in degrees or radians) where is each phase shift represented with a symbol.
Wu, "Real-time protein biosensor array based on surface plasmon resonance differential phase imaging," Biosensors and Bioelectronics, Vol.
Figure 10(a) shows the basic operation of UNI gates that depends on the differential phase shift between two orthogonal polarized components of the signal [26-37].
BLUE-PA and BLUE-PA-N take the phase of correlation metrics directly and a coarse estimation is needed to enlarge the estimation range, while BLUE-DPA and BLUE-DPA-N utilize differential phase of correlation metrics to avoid coarse estimation steps.
Schiffman differential phase shifter is a common used fixed phase shifter form in Butler matrix.
On the other hand differential phase shift keying (DPSK) is a non-coherent kind of phase shift keying technique.

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