The influences of timing offset and carrier phase offset on the performances of MPAM and MQAM are analyzed.
文中分析了同步偏差即定时偏差和载波恢复相差对MPAM和MQAM接收性能的影响。
Changes in the minimum pulse width can adversely effect a PLL's static phase offset and performance characteristics.
最小脉冲宽度的变化可能不利地影响PLL的静态相位偏移和性能特征。
After attaining synchronization, the phase offset due to frequency offset estimation error is tracked with a phase locked loop.
同步捕获后则通过锁相环技术跟踪长突发的同步变化。
In this paper, a new frame synchronization and phase offset estimation method is presented, the implementation scheme is also applied.
提出了一种新的帧同步及相偏估计方法，并给出了系统实现的方案。
In communication systems, the synchronization of the receiver requires to accurately estimate a number of parameters such as the carrier frequency and phase offset.
在通信系统中，接收机的同步要求精确地估计一些参数，比如载波频率和相位偏移。
The influences of frequency offset and phase offset on communications are discussed, and then a novel algorithm for recovering the carrier based on the false frequency offset is presented.
推导并分析了频偏、相偏对通信系统的影响，提出了一种新的基于伪频偏概念的载波恢复算法。
The invention can control the phase offset of the signals when the attenuation amounts of attenuation of the signals vary through analyzing the phase offset of the signals after attenuation.
本发明通过分析信号经过衰减后的相位偏移，在信号进行衰减的衰减量变化时，能够控制所述信号的相位偏移。
But lower demand will be offset by a scheme to phase out single-hull ships on environmental and safety grounds in European and North Atlantic waters.
但是，出于环保和安全考虑，欧洲和北大西洋海域制定了淘汰单壳油轮的计划，这将抵消下降的石油需求。
The goal is to reduce 10 percent of the overall carbon offset during its construction phase.
目标是在建造阶段能减少碳补偿总量的10%。
But OFDM is very sensitive to frequency offset and phase noise, so synchronization is the key problem for OFDM system.
但是OFDM技术对频率偏移和相位噪声很敏感，所以同步是OFDM系统中的关键问题。
Phase Jitter: refers to the deviation of the FBKCLK rising edge to the REFCLK rising edge with respect to the average offset in a random sample of cycles.
相位抖动：指的是反馈时钟和参考时钟之间上升沿差异与多次随机采样的平均偏移之间的差。
The phase noise is usually specified, depending on the carrier offset, as a single-sideband phase noise referenced to the carrier offset.
相位噪声总是具体的，取决于载波偏移，作为相对于载波偏移的一个单边带噪声。
This thesis deals with the algorithms of carrier frequency offset and phase error for MPSK signal.
本文主要研究MPSK信号的载波频偏和相位误差的估计和恢复算法。
So how to calculate amplitude and phase of the fundamental and harmonics accurately when the system frequency has an offset is an important issue.
如何在系统频率偏移时准确的得到基波及各次谐波的幅值和相角就成为一个重要问题。
The offset quadrature phase-shift-keyed(OQPSK) is an effective digital constant envelope modulation for band-limited nonlinear channel.
偏移四相相移键控（OQPSK）是一种适用于在限带非线性信道中使用的高效恒包络数字调制技术。
However, OFDM is sensitive to frequency offset and phase noise.
然而，OFDM系统对频率偏差和相位噪声比较敏感。
The appearances of BSRs oon near-offset profile, stacked profile, migration profile, migration profile, instantaneous amplitude profile and instantaneous phase profile are compared and described.
比较了近炮检距剖面、叠加剖面、偏移剖面、瞬时振幅剖面与瞬时相位剖面上BSR的显示特征。
An algorithm suitable for carrier phase and frequency offset estimation in software radio is proposed.
提出一种适合软件无线电的载波相位和频差估计算法。
Firstly the carrier phase with frequency offset is obtained with a parallel method.
该算法利用并行方法估计有频差时的载波相位。
In the system, we adopt a balance channel frequency offset structure, phase locked IF tracking technique and opened loop precorrection.
在系统结构上采用了平衡通道频率补偿技术、中频锁相跟踪技术和开环预校正技术。
Offset Quadraphase phase Shift Keying?
偏移量四象制相移键控oqps K ？
The simulation for QPSK shows that the algorithm can estimate the carrier phase and frequency offset accurately and reduce the system BER effectively.
结果表明，用该算法可以精确估计载波相位和频差，有效地降低系统的误码率。
The switching circuitry provides the first phase current waveform during at least two offset sampling instants, and provides the second phase current waveform during a reference sampling instant.
切换电路提供在至少两个偏移采样时刻期间的第一相电流波形，且提供在参考采样时刻期间的第二相电流波 形。
Then the phase trajectory is estimated based on MMSE criterion, and the frequency offset and initial phase can be achieved.
在此基础上，基于MMSE准则计算载波相位的轨迹，得到频差和初始相位。
This algorithm combines the block Pilot-aided LS channel estimation algorithm with a phase tracking algorithm, which can compensate the phase rotation caused by the residual carrier frequency offset.
该算法在传统的基于块状导频的Ls信道估计算法的基础上，加入了相位跟踪算法，补偿了由残余频偏带来的相位旋转。
For a fixed offset, frequency response of the phase of dominant aperture field mode tends to be smoother with the increase of tilt whereas converse conclusion can be drawn for that of the amplitude.
而在横向偏置相同的条件下，倾角越大，基模电场的相位随频率的变化越平缓，幅度则正好相反。
By using moving one period sine wave model, the jitters of amplitude, frequency, phase, and offset of sine wave are evaluated.
使用一个周期的正弦波曲线模型的滑动拟合法，评价了幅度、频率、直流偏移的抖动，以及相位与理论值之偏差的抖动情况。
By setting the DDS's offset phase at given time, a single DDS can generate multi-target phase-coherence signals including LFM and general pulse for evaluated radar.
通过在特定时刻对DDS生成的信号进行补相，可以使单dds同时生成多个目标的与被测雷达全相参的常规脉冲和线性调频回波信号。
At the second level , offset between two adjacent intersection was determined by the fuzzy phase controller;
第二级，用模糊相位控制器确定相邻两路口的相位差；
At the second level , offset between two adjacent intersection was determined by the fuzzy phase controller;
第二级，用模糊相位控制器确定相邻两路口的相位差；
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