片语

frequency-offset estimation频偏估计

frequency-offset transponder[通信]

Integer-Frequency-Offset整数倍频偏

frequency deviation[通信] 频率偏移

frequency y offset频偏

frequency-offset matrix频偏矩阵

frequency-offset estimate频偏估计

frequency-offset-lock偏频锁定

英汉例句

• Numerical analysis and simulations show that this algorithm reduces the computational complexity significantly for the estimation of large frequency offset while maintains a good performance.

  理论分析和仿真表明该算法在保证估计精度的同时，可显着降低大频偏估计的计算复杂度。

• So frequency offset must be removed prior to demodulation.

  因此，解调前必须去除频率偏差。

• The emphasis is put on the effect of frequency offset and partial correlation of GOLD sequence on parameters.

  主要考虑了频偏和GOLD码部分相关对参数选择的影响。

• This paper introduces the method of clock calibration to VCXO in system, based on GPS and CPLD. It can solve the problem of frequency offset because of Crystal worse behavior in Long-term use.

  本文还给出了基于GPS芯片和CPLD，对系统压控晶振时钟进行校準的实现方法，有效解决了由于长时间使用，晶振自身特性变化，造成的频率偏移现象。

• The effect of sample frequency offset on MIMO-OFDM signals is exploited. An amplitude weighted least squares estimation of sample frequency offset in MIMO-OFDM systems is presented.

  本文分析了采样钟频率偏移对MIMO-OFDM系统接收信号的影响，提出了一种适用于MIMO-OFDM系统的采样钟频率偏移估计算法，即幅度加权最小平方估计法。

• Timing offset causes inter-symbol interference, and frequency offset would destroy the orthogonality between subcarriers, causing ICI, which lead to a sharp decline in overall system performance.

  定时偏差会导致码间干扰，频率偏差会破坏子载波间的正交性，引起子载波间干扰，从而使系统整体性能急剧下降。

• However in uplink channel, each user has its own frequency offset which leads to a loss of orthogonality among the sub-carriers and multiuser interference at the base station receiver.

  在上行链路中每个用户由于载波频率偏差而存在潜在的不同步，这样使子载波之间失去正交性，从而在基站接收端产生多用户间干扰。

• 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。

• The ways of estimating the frequency offset and Doppler spread width in WCDMA system are studied in this paper.

  本文主要研究了WCDMA(宽带码分多址)系统中频偏和最大多普勒频偏的估计方法。

• Various existing synchronization algorithm to estimate symbol timing offset and carrier frequency offset can be classified into blind and pilot-aided methods and algorithm based on cyclic prefix.

  目前，估计载波频率偏差和符号定时偏差的算法主要有数据辅助的方法和非数据辅助的方法以及基于循环前缀的算法。

• Doppler compensation techniques: the large Doppler frequency offset can case the performance degraded in PN and carrier synchronizing.

  多普勒频移补偿：大的多普勒频移会引起载波同步及伪码捕获性能的下降。

• 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。

• To overcome the frequency offset between the mixing signal and modulating signal in PGC demodulation, an additional (A/D) channel in DSP system is used to sample the modulating signal.

  针对PGC解调中混频信号与实际调制信号的频率偏差，在DSP系统实现中采用一路A/D转换器对调制信号进行同步采样，从而克服了频率偏差对解调结果的影响。

• 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。

• 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。

• 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準则计算载波相位的轨迹，得到频差和初始相位。

• 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。

• 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、中频锁相跟蹤技术和开环预校正技术。

• The time synchronization and carrier frequency offset estimation can be achieved simultaneously.

  该算法能够同时实现时间同步与频偏估计。

• The results of calculation are discussed and the relationship between the resonance frequency offset and the parameters of the cavity is generalized. Methods to minimize the effect are suggested.

  对此作了详细研究， 并对计算结果进行了讨论，总结出谐振频率偏移与谐振腔各参量的相互关系，从而提出减小这种效应的有效措施。

• The cancellation error is nonstatio nary with the frequency offset error′s influence and the classical adaptive cancellation filter cannot converge to desired weight.

  在频偏误差的影响下对消误差为非平稳过程，传统自适应对消滤波器无法收敛 。

• In this algorithm, the same pilot sequences in symbols were inserted while the carrier frequency offset was estimated in the receiver by correlating pilot sequences from adjacent symbols.

  算法的关键是在发送符号中插入相同的导频序列，利用相邻导频序列的差分相关值的相位来估计载波频率偏差。

• 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。

• Carrier frequency offset estimation is one of key technologies in digital relay satellite systems.

  载波频偏估计是数字中继卫星通信系统中的一个关键技术。