The mean phase coherence of EEG changed with time is coincident with event-related desynchronization and event-related synchronization.
脑电信号相位相干性指数随时间的变化与事件相关去同步和事件相关同步现象相一致。
We use the training sequence in every burst to aid the timing synchronization and phase recovery. Also simulate the receiver performance of timing synchronization and Viterbi equalizer. In order to recovery the timing in fading channel, we use the feedforward demodulation. Finally, In order to implement the modulation and coherent demodulation algorithm in TMS320C6X, we simulate the 16-bit fixed-point format arithmetic in Matlab program and study the feasibility of implementation.
同调解调器中所需要的时脉重建及相位重建可以利用每个码框中的探测序列来辅助完成，并分析时脉重建与Viterbi等化器整合之接收机性能；接著利用Feedforward架构的时脉同步方式进行接收机性能分析，这种架构可在莱氏衰落通道中成功的运作；最后将时脉重建及相位重建演算法用MATLAB进行演算法定点运算模拟，并实现在TMS320C6X上。
EEG is mainly affected by the type of faith; In the EEG phase synchronization, synchronization of β waves appears at the same time in the parietal, temporal and occipital area, and β and γ waves have a similar integrated role.
2脑波的最大能量主要受信仰类型的影响；在脑波的时相同步性上，顶区、枕区和颞区同时出现β同步性波，并且发现β和γ波都具有类似整合性作用。
When control parameters are different, that is, the drive system and the response system are both chaotic and the drive system is periodic oscillating while the response system is chaotic, under these two cases, the firings of the drive system and the response system both can transition from asynchrony to phase synchronization, and then to almost complete synchronization with the increase of coupling strength.
当两个神经元的控制参数取值不同时，即在驱动系统和响应系统均处于混沌态及驱动系统处于周期振荡态，响应系统处于混沌态两种情况下，随耦合强度的增加其放电活动都能从不同步达到相位同步，最后实现近似完全同步。
Based on computer video leakage information displaying different features in the course of being captured, this paper introduces a spectral analysis algorithm of line synchronization frequency, a line tilt angle measurement algorithm of incline image grain feature and a measurement algorithm of integral projection and differential orientation of drift image phase feature.
引言截获计算机视频泄漏信息时[1]，在没有先验知识的前提下是无法提取图像特征的，只能通过数据分析提取行同步频率，在伪行同步的控制下截获的图像具有一定的特征，再利用算法提取出特征，根据特征量判断行同步偏差的大小和方向，调整同步参数。
In the first part, frequency offset of facsimile signal is estimated by using the amendment Rife algorithm, then frequency is corrected according to the value of frequency offset. The detection of the remote control signal and phase synchronization signal, selection of speed can be accomplished in the second part of software module.
传真图接收系统的软件采用Matlab仿真软件设计实现，主要分为两大部分，第一部分是采用修正Rife算法对传真信号进行频偏估计，然后根据频偏值进行频率校正；第二部分是自动完成遥控信号的检测、相位同步信号的检测和扫描速度的选。。。
The next phase in the process is synchronization of the LHC with the Super Proton Synchrotron accelerator, which forms the last link in the LHC`s injector chain.
下一阶段的进程是同步的复合体的超级质子同步加速器加速器，它的最后形式链接在复合体的喷油器链。
The synchronization and separation of the data and clock from floppy disk driver are one of phase-lock techniques use in computer field.
对软磁盘的数据和时钟的同步和分离，只是锁相技术在计算机领域的应用之一。
To utilize the interaction between the field and the electron beam in a traveling wave tube, the velocity of electrons and the longitudinal phase velocity of field should be made approximately equal. But when the electromagnetic energy increases, the electrons are slowed down and the synchronization condition is no longer satisfied in periodic structures.
由于行波管的工作依赖于其慢波系统中的电子注与沿轴传输交变电磁场之间的相互作用而完成，而这样的相互作用要求沿轴传输的交变电磁场必须与电子注有着近乎同步的速度，所以慢波系统内的同步问题就成了研究行波管的一个很重要的问题。
To utilize the interaction between the field and the electron beam in a traveling wave tube, the velocity of electrons and the longitudinal phase velocity of field should be made approximately equal. But while the electromagnetic energy increases, the electrons are slowed down and the synchronization condition is no longer satisfied in periodic structures.
由于行波管的工作依赖于其慢波系统中的电子注与沿轴传输交变电磁场之间的相互作用而完成，而这样的相互作用要求沿轴传输的交变电磁场必须与电子注有着近乎同步的速度，所以慢波系统内的同步问题就成了研究行波管的一个很重要的问题。
PLL is a feedback circuit, and its role is to make the clock circuit and a phase of external clock synchronization.
详细说明：锁相环是一种反馈电路，其作用是使得电路上的时钟和某一外部时钟的相位同步。
Check the synchronization meter and the phase angle lamp.
观察同步表和相角灯。
Then a simplified parallel control strategy based on phase synchronization and amplitude regulation of reference voltage is proposed and the model of parallel system is established.
讨论了器件精度对输出电压跟踪基准电压幅值和相位的影响，在此基础上提出一种简化的并联控制策略：即基准电压同步，根据环流大小调节基准电压幅值。
The synchronization solution, rotation, and twist, shifted in phase by /2, are presented for a material in an advanced deformation state with granulation and microcracking.
而同步解，旋转和扭转的相位移位这种情况出现在粗糙，有微裂纹的超前形变状态结构中。
With the experiments we have approved the feasibility and the validity of this phase synchronization information in the BCI system.
根据这一特性，我们联想到可以分别利用两导信号之间相同步的信息作为特征量对运动意识任务进行分类，并在实验中证实了这一信息在意识任务识别中的可行性及有效性。
Based on the return map and the principle of closed vectors, a new method is proposed to extract unstable periodic orbits embedded in chaotic attractors. As examples, the UPOs embedded in chaotic attractors of Logistic, Hénon and Lorenz are extracted respectively by this method. And our results of Skewed Hénon map also be compared with Nusse`s. These results suggest that this method is valid for unstable periodic orbits from period one to period infinite of arbitrary dimension chaotic system. The dynamic considerations of spiking and UPO coding for individual neuron and neural system under external periodic and chaotic exciting stimulus also be studied in this dissertation. A lot of spiking phenomena, such as synchronization, period, and chaos appear alternatively with the changing of the stimulus frequency. For the small stimulus frequency the neuron could completely convey the periodic signal in synchronous anti-phase into interspike intervals sequences. For the slow time–scale chaotic input, the output two ISI sequences are reciprocally related to input signals, and their oscillation wave shape in time course can be derived from that of the input signals variation, furthermore, the similar input sequence and order of UPOs, distribution of LES and value of KYD remain in attractors reconstructed from ISI sequences.
发现周期信号在单个神经元传递过程中，随着激励频率的改变，神经元输出的峰峰间期interspike interval时间序列呈现出周期、混沌和准周期的交错变化，特别当外加激励信号频率较低时，周期信号可以通过神经元ISI序列以反相同步的周期运动形式传递下去；同时无论是周期还是混沌激励信号，在神经系统中的传递均与其自身强度和神经元之间的耦合强度的大小密切相关；快变时间尺度的混沌激励信号在耦合的神经系统传递过程中，会造成大量基本信息的丢失；而慢变时间尺度的混沌激励信号在神经系统传递中，它的非线性特征信息，如混沌吸引子、不稳定周期轨道、Lyapunov指数谱和分形维数，会通过系统输出的ISI序列部分地重现出来，如与输入慢变时间尺度的混沌激励信号相比，神经系统输出的ISI序列具有：相似几何形状的混沌吸引子、相近的Lyapunov指数谱和分形维数、局部结构相同的不稳定周期轨道的排列方式。
In allusion to the working characteristics and technical difficulties of 155Mb/s burst mode receiver, we have put forward to the quick synchronization of inpouring Phase Locked Loops. For receiving burst signal, we introduce the scheme of DC coupling and dynamic threshold decision.
针对155Mb／s突发式收发模块的工作特点和技术难点，我们提出了注入锁相环法的快速同步技术；对于突发式信号的接收，我们采用了直流耦合和动态阈值判决的技术方案。
Feature Highlights 397-Dual output configuration with independent waveform control 397-Tight phase offset control between channels (1 point resolution) 14-bit vertical resolution Nearly 19-bit offset resolution 396-1 Meg memory depth 397-4 Meg memory depth for each channel Ultra fast waveform downloads using DMA 125 MS/s sample clock frequency 396-100 MHz REAR-PANEL sinewave output 397-125 MHz REAR-PANEL sinewave output 1 ppm clock stability Extremely low phase noise carrier External amplitude modulation Frequency agility: FSK, ramped FSK, sweep, FM Trigger start phase control and breakpoints Built-in standard waveforms 396-Sequence generator 397-Separate sequence generators for each channel Multiple instrument synchronization with tight phase control 396-GPIB and RS232 Interfaces 397-GPIB, USB, and Ethernet Interfaces ArbExplorer Feature Highlights 396-Three powerful tools in one software package: complete Instrument control panel, Waveform composer and FM signal composer 397-Four powerful tools in one software package: complete Instrument control panel, Waveform, pulse, and FM signal composer 397-Detailed virtual front panels control all of the Instrument`s functions and modes Wave composer generates, edits and downloads complex waveforms FM wave composer generates and downloads complex modulating signals 397-Easy, onscreen generation of complex pulses using the pulse composer 396-Automatic detection of active instruments Equation editor generates waveforms from equations SCPI command and response editor simulates ATE operation Translates waveform coordinates from ASCII and formats Simplifies generation of complex sequences Features, Functions, and Options The following is a general description of the features, functions, and options available with the Instrument.
特点聚焦 397 双重输出排列以独立信号波形控制 397 紧的阶段垂距控制在渠道(1 个点决议之间) 14 位垂直分辨率近19 位垂距决议 396-1 兆欧记忆深度 397-4 兆欧记忆深度为各种渠道超快速的信号波形下载使用DMA 125 女士s 样品钟频 396-100 兆赫REAR-PANEL sinewave 产品 397-125 兆赫REAR-PANEL sinewave 产品 1 ppm 时钟稳定极端低阶段噪声载体外在调幅频率敏捷性：FSK，ramped FSK，打扫，FM 触发器起动阶段控制和转效点固定标准信号波形 396 序列发电器 397 分离序列发电器为各种渠道多仪器同步以紧的阶段控制 396-GPIB 和RS232 接口 397-GPIB，USB，并且以太网接口 ArbExplorer 特点聚焦 396-Three 强有力的工具在一个软件包：完成仪器控制板，信号波形作曲家和FM 信号作曲家 397-Four 强有力的工具在一个软件包：完成仪器控制板，信号波形，脉冲，并且FM 信号作曲家 397 详细的真正面板控制所有Instrument。。s 作用和方式波浪作曲家引起，编辑和下载复杂信号波形 FM 波浪作曲家引起和下载复杂调整的信号 397 容易，onscreen 复杂脉冲的世代使用脉冲作曲家活跃仪器的396 自动侦查等式编辑引起信号波形从等式 SCPI 命令和反应编辑模仿吃了操作翻译信号波形座标从ASCII 和格式简化复杂序列的世代特点，作用，并且选择下列是特点的概述，作用，并且选择可利用与仪器。
DQPSK signal; Software demodulation; Instantaneous phase; Code synchronization
PCM/DQPSK信号；软件解调；瞬时相位；位同步
A novel phase locked loop system used to realize real time phase synchronization under the condition of frequency variations of three-phase power system is presented.
本文提出了一种新颖的适用于三相电力系统在频率波动条件下的锁相环系统。