But OFDM is very sensitive to synchronization error, especially the symbol synchronization error.
但是OFDM对同步误差十分敏感，特别是符号同步误差。
But it is sensitive to synchronization error, and especially the frequency synchronization error.
但是OFDM对同步误差十分敏感，特别是对于频率同步误差。
In order to enhance the precision of the system, and to reduce synchronization error, this paper adopts hardware synchronization.
为了提高系统的精度，采用硬件同步以减少同步误差。
The system model is introduced and the probability of error in receiver as a function of symbol synchronization error is deduced.
给出了该系统模型，推导了PAM通信系统符号同步误差对收端误码率的影响。
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。
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。
Phase errors is introduced in echo demodulation process because of the frequency synchronization error, and then, the final focus result will be deteriorated.
在接收端解调过程中，该频率同步误差会引入一定的相位误差，进而影响下一步的成像处理。
Since the synchronization error is independent of information signal, the chaotic modulation for large amplitude and fast varying information signals can be achieved.
由于同步误差与信息信号无关，从而实现了大幅度、快时变信息信号的混沌调制通信。
Numerical results demonstrate that the phase variations caused by multipath time delays may influence accuracy of the mean of time synchronization error spectral estimation.
数值计算结果表明，多径分量的相位变化会影响时间同步误差谱估计均值的准确性。
Uncertain Chen's chaotic synchronization error system is asymptotically stabilized to the equilibrium point, and then sufficient conditions for robust synchronization are obtained.
使具有不确定扰动的陈氏混沌同步误差系统渐近镇定到平衡点，并且获得其充分条件。
The orthogonal multicarrier modulation, which is the main character of OFDM, determines that it is very sensitive to both timing synchronization error and carrier frequency offset.
OFDM系统自身的正交多载波调制特点，决定了其对定时误差和载波频率偏差十分敏感。
When a synchronization error exists, the orthogonality between sub-carriers can't be maintained, serious inter-carrier interference is introduced and demodulation performance will be degraded greatly.
当存在同步错误时，子载波之间的正交性遭到破坏，从而引起严重的载波间干扰，使解调性能大大下降。
Synchronization error will lead to inter symbol interference as well as inter carrier interference. Therefore, synchronization is extremely crucial to OFDM systems.
同步错误不但会导致符号间干扰，还会导致信道间干扰，因此同步是OFDM的关键技术。
Synchronization error will lead to inter symbol interference as well as inter carrier interference. Therefore, synchronization is extremely crucial to OFDM systems.
同步错误不但会导致符号间干扰，还会导致信道间干扰，因此同步是OFDM的关键技术。
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