This method is based on the multi-cycle synchronization frequency measurement has higher accuracy.
该方法继承了多周期同步测频法的优点，同时提高了测量精度。
The OFDM is sensitive to the synchronization of the OFDM symbol and the carriers' frequency excursion.
OFDM系统存在对数据符号同步和载波频率偏移极为敏感的问题。
Chaotic signals at different wavelengths can be generated by adjusting the pump power, modulation frequency and tunable filter, and chaos synchronization is achieved.
通过调节泵浦功率、调制频率和可调谐滤波器，可以产生不同波长的混沌信号，并实现混沌的同步。
In the orthogonal frequency division multiplexing system, the frame synchronization plays an important role in the performance of system.
在正交频分复用系统中，帧同步对系统性能起到十分重要的作用。
Carrier frequency synchronization is one of the key techniques of OFDM system.
载波同步是正交频分复用系统的一项关键技术。
The probability of synchronization of pedestrians is also dependent on the frequency and amplitude of vibration in lateral direction .
试验还统计得到了不同频率振幅下的步行同步调概率。
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。
A feasible scheme using PAL TV signal for proceeding active time and frequency transfer and synchronization is described in this paper.
本文介绍了利用PAL制电视信号进行有源电视时间频率传递与同步的一种可行的方案。
Frequency hopping communication is an effective method for secret communication, and its key step is synchronization.
跳频通信是一种有效的保密通信方式，其关键在于使收发双方保持同步。
We have implemented the equipment of digital frequency leading by 8086 microcomputer and successively applied in measuring and control station of synchronization communication satellite.
作者等人以8086微机实现的数字频率引导设备已成功地应用于同步通讯卫星测控站中。
The synchronization techniques for burst packet transmission mode OFDM systems is studied, including timing, frequency offset estimation and channel estimation.
本文主要研究适用于突发OFDM传输系统的同步技术，包括定时、频偏估计和信道估计。
A novel symbol synchronization and carrier frequency offset estimation method is presented for 39-tone OFDM systems.
针对短波39音OFDM系统，提出了一种新型的符号同步和载波频偏估计方法。
The new tracking algorithm decreases the computational complexity greatly, and increases the accuracy of the frequency synchronization.
新的频率跟踪算法降低了计算量，提高了频率同步的精确度。
As one of the most crucial technique of OFDM, synchronization technique includes carrier frequency synchronization and symbol synchronization.
同步技术是OFDM最关键的技术之一，它包括载波频率同步和符号同步。
A new symbol timing and carrier frequency synchronization scheme applicable to orthogonal frequency division multiplexing (OFDM) system was presented.
针对正交频分复用(OFDM)系统提出了一种新的符号定时和载波频率同步算法。
Aiming at the uncertainty of weights selection in the weighting orthogonal frequency division multiplexing system, a performance analysis method for carrier blind synchronization is proposed.
针对载波加权正交频分复用系统中权值选择的不确定性，提出了一种载频盲同步的性能分析方法。
The frequency synchronization and sampling clock synchronization technique in high definition TV (HDTV) are investigated.
研究了高清晰度数字电视(HDTV)中的频率同步及采样钟同步技术。
A joint blind estimation method based on spectrum overlap for uplink interleaved orthogonal frequency division multiple access carrier frequency offset and timing synchronization is proposed.
提出了一种基于功率谱叠加的交织正交频分多址系统上行链路载波频偏和定时同步联合估计算法。
A new time and frequency synchronization method based on frequency domain correlation for an Orthogonal frequency Division Multiplexing (OFDM) system is presented.
该文根据频域相关的原理，提出了一种新的用于无线移动信道下的正交频分复用(OFDM)系统的时频同步算法。
However OFDM and MIMO OFDM systems are very sensitive to time and frequency synchronization errors, especially the frequency synchronization error.
但OFDM系统和MIMO OFDM系统对时间和频率同步误差很敏感，特别是频率同步误差。
In this paper, a new frequency and symbol synchronization algorithm for OFDM systems is proposed.
提出了一种正交频分复用(OFDM)系统的频率和时间同步算法。
Triggering time synchronization error model is derived, and based on phase noise model of frequency source, random synchronization error is considered.
本文建立了触发时间同步误差模型，结合频率源相位噪声模型，初步分析了随机型时间同步误差对成像的影响。
After coarse frequency synchronization, frequency offset compensation is carried out using variable step size least mean square algorithm (VLMS).
经过频率粗同步后，以变步长的最小均方算法(VLMS)进行频率补偿。
This dissertation investigates the topic of time and frequency synchronization for OFDM and MIMO-OFDM systems.
准确的时间同步和精确的频率同步是OFDM系统和MIMO OFDM系统正常工作的前提。
Then researched the non date assistance based algorithm:MLE frequency synchronization algorithm.
然后研究了基于非数据辅助的MLE频率同步算法。
In this paper, a novel frequency synchronization estimation algorithm is provided to achieve carrier frequency capture and tracking.
文中提出了一种低复杂度的同步估计，来实现载波频率捕获和跟踪。
The zero-crossings of the AC voltage and digital frequency synthesizer are used in solving the two main problems in frequency hopping system-synchronization and fast frequency synthesizing.
利用电力系统三相交流电压过零点和高速数字频率合成器解决了跳频系统中同步和快速频率合成的两个关键问题。
There are two main aspects about OFDM synchronization technologies: symbol timing synchronization and carrier frequency synchronization.
OFDM系统有两个方面的同步要求，符号定时同步和载波频率同步。
When stepping motor works in some pulse frequency, it may have the problem of oscillation and miss of synchronization, so it should be avoided at full steam.
在一定控制脉冲频率下，步进电动机可能出现振荡与失步现象，严重影响步进电动机的运行，要严格防止这种情况发生。
When stepping motor works in some pulse frequency, it may have the problem of oscillation and miss of synchronization, so it should be avoided at full steam.
在一定控制脉冲频率下，步进电动机可能出现振荡与失步现象，严重影响步进电动机的运行，要严格防止这种情况发生。
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