1) QDPSK Quadrature Differential Phase C Shift Keying
正交微分相移键控，四相差分移相键控
2) optical DQPSK
光差分正交相移键控
1.
The principle and simulation of optical DQPSK modulation formats;
文章简单介绍了光差分正交相移键控(DQPSK)调制格式的调制和解调方式,对光DQPSK的预编码也进行了必要的说明。
3) DQPSK
差分正交相移键控
1.
This article theoretically derives the formulas for the principles of Carrier-Suppressed Return-to-Zero(CSRZ) and Differential Quadrature Phase Shift Keying(DQPSK) modem,presents the specific processes of their implementation and obtains by simulation their spectra after modulation and eye diagrams after demodulation.
文章从理论上推导出了载波抑制归零(CSRZ)码和差分正交相移键控(DQPSK)的调制解调原理公式,给出了实现的具体过程,以及仿真得到的调制后的频谱图和解调后的眼图。
2.
And an all-optical regenerator design scheme for quadrature phase-shift keying(QPSK) and differential quadrature phase-shift keying(DQPSK) signals was investigated through numerical simulations.
对适用于正交相移键控和差分正交相移键控信号的全光再生器进行了仿真。
3.
Differential Quadrature Phase Shift Keying(DQPSK) has higher spectral efficiency and greater robustness to chromatic and polarization mode dispersion than On-Off Keying(OOK).
40 Gbit/s波分复用系统已开始商用,在这种系统中,差分正交相移键控(DQPSK)比开关键控有更高的谱效率并且对色散和偏振模色散等有更高的鲁棒性。
4) Differential quardrature phase shift keying demodulation
四相差分相移键控解调
5) differential phase-shift keying
差分相移键控
1.
A combination of differential phase-shift keying(DPSK) modulation format with dispersion managed soliton(DMS) transmission technique can depress the noise and nonlinear damage,and gives additional innovative advantage in densely spaced channels at high bit rates(40 Gbit/s and more) systems.
差分相移键控(DPSK)调制方式和色散管理孤子传输方式的结合能抵制噪声和非线性损伤,在高速(40 Gbit/s以上)多信道系统中具有突出的优点。
6) differential phase-shift keying(DPSK)
差分相移键控(DPSK)
补充资料：示差分光光度法
分子式：
CAS号：
性质：用已知适宜浓度的标准溶液作为参比溶液调零和100%标度，测量试样溶液对已知标准参比溶液的透射比。故又称透射比法（transmittance tatio measurement method）。有高吸光度法、低吸光度法和最精确法。适用于高浓或低浓试样，可提高方法的准确度和精密度。
CAS号：
性质：用已知适宜浓度的标准溶液作为参比溶液调零和100%标度，测量试样溶液对已知标准参比溶液的透射比。故又称透射比法（transmittance tatio measurement method）。有高吸光度法、低吸光度法和最精确法。适用于高浓或低浓试样，可提高方法的准确度和精密度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条