Analysis of synchronization error on the system affected and further reflects the importance of synchronization .

分析了 同步 误差对系统的较大影响，更进一步体现同步技术的重要性。

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。

Simulation results show that the synchronization error can be reduced effectively .

仿真结果表明， 曝光 扫描阶段内 同步 偏差明显减小。

The frame synchronization error ratios for both algorithms are derived .

推导了它们的帧 同步 错误概率。

The dissertation will focus on pilot assisted residual synchronization error estimation methods and pilot assisted channel estimation methods .

本文从导频辅助 传输 技术出发，研究了基于导频的剩余 同步 误差估计方法和基于导频的信道估计方法。

By means of Lyapunov stability theorem it is proved that the dynamics of the synchronization error is globally and asymptotically stable .

利用李雅普诺夫稳定性定理，证明了 同步 误差系统是全局渐近稳定的。

Then synchronization algorithms for SISO-OFDM system and MIMO-OFDM system are discussed in detail based on the introduction of analysis about the influence of synchronization error on the system .

本文首先介绍了MIMO-OFDM系统发展概况、关键技术及基本原理，然后详细分析了 同步 误差对MIMO-OFDM系统性能的影响，在此基础上重点研究了SISO-OFDM系统和两种MIMO-OFDM系统的同步算法。

However OFDM is sensitive to synchronization error and channel estimation error and it has the weakness of the high Peak-to-Average Power Ratio ( PAPR ) of the transmitted signal .

但是，OFDM不仅对于 同步 误差和信道估计误差非常敏感，而且还伴随发射信号高峰平比（PAPR）的缺点。

Fourthly MIMO-OFDM system structure and signal model are introduced synchronization error model and preamble configuration are discussed . Several typical synchronization schemes in MIMO-OFDM systems are detailed .

给出了MIMO-OFDM系统结构和信号模型，分析了MIMO-OFDM系统 同步 误差模型和前导结构，对几种典型的MIMO-OFDM系统定时同步和频率同步方案进行了详细的讨论。

Symbol synchronization error will destroy orthogonal between sub-carriers .

码元 同步 错误破坏载波间的正交性等问题，有必要进行深入的研究。

Analysis and Verification of Time Synchronization Error in GPS / SINS Integrated System

GPS/SINS组合系统时间 同步 误差的分析与验证

In the system two close loop speed control systems are used and the speed synchronization control between two motors is realized by means of the feedback of synchronization error .

在该系统中采用了2个速度闭环控制系统，并将其 同步 误差反馈，实现了双电机的速度同步控制；

It buffered time information of packets and employed the least-squares linear regression technique to smooth jitter of synchronization error .

对包时间信息进行缓存并采用最小方差线性拟合方法平滑 同步 误差抖动。

Influence of Time Frequency Synchronization Error on OFDM System Performance

时频 同步 误差对OFDM系统性能的影响

Orthogonal frequency division multiplexing ( OFDM ) systems are very sensitive to the synchronization error .

正交步分复用系统对 同步 误差非常敏感。

Differential correlation method should be used to eliminate the phase in frequency domain casued by timing synchronization error .

应该采用差分相关法消除定时 同步 不准而在频域上引入的相位旋转。

Secondly the paper analyzes how does synchronization error influence OFDM system and bring forward combined time and frequency synchronization algorithm based on cyclic prefix pilot symbol and preamble sequence techniques . In addition an improved algorithm is introduced .

接着分析了 同步 误差对系统的影响。详细介绍了基于循环前缀、导频符号和训练序列的OFDM系统符号定时和载波频率联合同步算法，并提出了改进算法。

Since synchronization error would severely influence the system performance synchronization is a key technology of OFDM .

同步是OFDM系统的一项关键技术， 同步 偏差会对系统产生严重的影响，只有较好地解决了系统的同步问题，OFDM技术的优势才能得以彰显。

The Influence of Synchronization Error to the Distributed SAR-Gmti

分布式SAR 同步 问题对动目标检测的影响

The effect of local oscillator syntonization error and triggering time synchronization error on bistatic SAR imagery are analyzed based on their error models . Useful simulation results are provided for system design .

本文重点研究了双基地SAR本振相位同步误差与触发时间 同步 误差对成像的影响，建立了误差模型，给出了仿真试验结果，为系统设计提供了参考依据。

But OFDM is very sensitive to synchronization error and when existing timing error and frequency offset it can result inter-carrier interference ( ICI ) and ISI and the whole performance of OFDM system will be affected seriously .

但OFDM技术对 同步 误差非常地敏感，当系统出现载波频偏和定时误差时，会造成载波间干扰ICI和码间干扰ISI，严重影响了OFDM系统的整体性能。

Secondly the phase synchronization error can not overrun a limit which is requested by elevation accuracy demand during the whole interferometric data acquirement time .

二是在整个干涉数据的录取时间里，主动和被动两个雷达载波相位 同步 误差不能超过高程测量的精度要求所允许的误差。

When introducing MIMO technique into OFDM system synchronization error may lead to severe inter-antenna interference .

引入MIMO技术后， 同步 误差还会引起严重的天线间干扰。

In this paper a mathematical model considering the time synchronization error is given and a phase error analysis is performed . Range and azimuth compressions of a single point target are simulated for different time synchronization errors .

本文建立了考虑时间 同步 误差的数学模型，进行了相位误差分析，并对点目标的距离压缩和方位压缩特性在不同的时间同步误差下作了仿真。

Finally experimental test of the synchronization error and real-time .

最后，通过实验测试了 同步 误差和实时性。

The effect of synchronization error of an OFDM system is discussed in detail .

就 同步 误差对系统性能的影响进行了详细分析、讨论。

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。

From a statistical view it studied the frequency drift which is the primary source of synchronization error and gave the clock synchronization model of the system .

论文从统计的角度，对 同步 误差的主要来源：频率漂移进行了的研究，并给出了系统的时钟同步模型。

High Accuracy Test Method of Computer Time Synchronization Error

计算机时间 同步 误差的高精度测试方法

This thesis also analyses the factor of causing synchronization error and unsteadiness . Based on the analysis the corrective action is implemented in the system and it improves the performance of the system .

论文在测试的基础上分析了 同步 误差以及不稳定性产生的原因，根据分析的结果对系统进行了改进，从而提高了系统的稳定性以及 同步精度。