1) carrier phase offset
载波相位偏移
1.
Estimating carrier phase offset and adjusting phase from demodulated signal(training sequence)makes it un- necessary to set phase-locked loop in receiver,thus decreasing the complexity of receiver in 16QA.
从已调信号(训练序列)中直接导出载波相位偏移量并进行相位校正,免去了在接收端设置锁相环,降低了16QAM通信系统接收端的复杂度。
2) Carrier phase offset estimation
载波相位偏移估计
3) phase-shifted carrier
相位移载波
1.
Taking two power cells cascaded per phase as an example,the topology of cascaded multilevel inverter and phase-shifted carrier SPWM modulation strategy are introduced.
以每相两功率单元串联为例,介绍了级联多电平逆变器的拓扑结构和相位移载波SPWM调制策略,阐述了该多单元级联逆变器在SPWM调制方法下的工作原理,从理论上分析了逆变器开关切换、输出电压、电流流向以及共模电压的情况,说明了相位移载波SPWM调制方法应用在级联多电平逆变器上的可行性、可靠性和控制的简易性,为实现调制方法的优化和拓扑结构的改进提供了理论基础。
4) timing and carrier phase deviation
定时偏移和载波相位误差
1.
In digital signal transmission systems, orthogonally multiplexed QAM system(OMQAM) is the most efficient transmission technique at present for non ideal channel, yet the problem is that this technique is quite sensitive to the timing and carrier phase deviation in the system.
在数字信号传输系统中，正交复用ＱＡＭ（ＯＭＱＡＭ）是目前最有效的一种抗信道失真传输技术，但它对系统的定时偏移和载波相位误差非常敏感。
6) phase shift
相位偏移
1.
Islanding detection method based on phase shift
基于相位偏移的孤岛检测新方法
2.
A two demension Ohm heating theoretic model in magnetizing ionosphere and the ray-tracing model in the discrete ionosphere background are used to diagnose the characteristics of the Over-The-Horizon Radar(OTHR) wave quantitatively,which transmit through the heated region in ionophere(mainly about the doppler shift and the phase shift).
利用二维磁化电离层欧姆加热数值模型和离散电离层背景下的射线追踪模型,对穿过高频加热电离层区域的超视距雷达(OTHR)诊断电波的波特性(主要是doppler频移和相位偏移)进行定量的分析,得到了在加热开机2 min内的诊断电波doppler频移和相位偏移的模拟结果。
补充资料：电力线载波保护复用载波机
电力线载波保护复用载波机
multi purpose PLC equipment for teleprotection system
d一onl一x一on zolbo boohu fuyong 20一boJ-电力线载波保护复用载波机(multi purposePLC equiPment for teleProteetion system)见电力线载波机。
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