传统的MLE算法虽对符号定时估计很有效，但计算复杂度较高。
Traditionally, the MLE algorithm is an effective method of symbol timing estimation, but it has very high computational complexity.
本文提出了一种低复杂度的符号定时估计，利用一个训练帧来实现同步。
In this paper, a novel symbol timing estimation algorithm is presented which realizes symbol synchronization by using a symbol.
上行链路中的粗频偏及定时估计是多用户OFDM系统的关键技术之一。
The estimation of the coarse frequency offset and timing is one of the key technology in the uplink multiuser OFDM system.
传统的MLE算法虽对符号定时估计很有效，但在ISI干扰情况下性能不高。
Traditionally, the MLE algorithm is an effective method of symbol timing estimation, but it has very low performance when there is ISI.
该算法利用经过特殊处理的前后两段信息序列的内在相关性进行准确的符号定时估计。
This algorithm utilizes inherent correlation property of two segments of information sequence to carry out accurate symbol timing estimation.
频率估计装置57、定时估计装置58分别将频率偏移量和定时偏移量通过控制信道从移动台接收的信号中检测出来。
Frequency and timing estimating units (57, 58) measure frequency and timing offsets, respectively, from a signal received from a mobile station via a control channel.
针对瑞利衰落信道中突发模式的空时网格编码的多电平连续相位调制(STTC - MCPM)系统，提出了一种基于数据辅助的符号定时估计算法。
A data aided symbol timing estimation algorithm was proposed for burst-mode space-time trellis coded multi-level continuous phase modulation (STTC-MCPM) systems in Rayleigh fading channels.
由于这只是一个估计，因此未必能在指定时间停止，但是尽可能接近指定的时间。
Since it is an estimate, it might not necessary stop at the specified time but is as close as possible.
在某一特定时间，一般人群中患有活动性癫痫(即具有持续性癫痫发作或者需要治疗者)的比例估计在每千人口4至10人之间。
The estimated proportion of the general population with active epilepsy (i.e. continuing seizures or the need for treatment) at a given time is between 4 to 10 per 1,000 people.
继续以大象作为单位，赫穆斯·菲尔德估计一片标准的雷雨云——一片积雨云——在任何特定时间内，都相当于与1,500万头大象相同重量的水漂浮在天空中。
Sticking with the elephant unit, Heymsfield estimated that a typical thunderstorm cloud — a cumulonimbus — has 15 million elephants worth of water floating in the air at any given time.
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。
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.
采用了最大平均功率定时同步算法和最大似然载波相位估计算法。
The maximum mean power estimation timing recovery algorithm and the maximum-likelihood carrier phase estimation algorithm are employed.
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 joint blind estimation method based on spectrum overlap for uplink interleaved orthogonal frequency division multiple access carrier frequency offset and timing synchronization is proposed.
基于波形检测的定时误差估计算法适用于PSK/QAM调制方式。
The timing-error estimation based on waveform detection can be used in PSK/QAM.
使用样本空间排序法给出了指数分布情形下不相同定时截尾试验平均寿命置信下限的估计方法。
Sample space order method is used to give the lower confident limits of mean life under unequal time truncations for exponent distribution.
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。
The synchronization techniques for burst packet transmission mode OFDM systems is studied, including timing, frequency offset estimation and channel estimation.
提出了从抽样后的报文中估计一定时间刻度原始流量的大小、估计原始报文长度与协议分布的方法。
It offers the way of estimating the primitive traffic at some time and the length of primitive message aod the way of protocol distribution from the message sampled.
基于该融合公式，证明了在单传感器系统中，当样本观测值一定时，分组数据融合的估计效果优于单组算术平均的估计效果；
In a single sensor system when the sample amount is constant, the estimation result of data fusion to subdivided into groups is superior to arithmetic average of single group.
利用具有循环前缀和循环后缀的OFDM帧结构，该文提出了一种新的符号定时跟踪盲估计算法。
A new blind symbol timing-tracking algorithm is proposed, using the special OFDM frame structure with cyclic prefix and cyclic postfix.
银行财务预测是指基于目前所掌握的最佳信息，针对特定时期、特定收入与支出的估计。
Bank financial forecast refers to an estimate of balance of the given receipts and disbursements for a particular period based on optimal information in hand currently.
它对一定时间间隔内两次采样得到的图象进行运算，用最陡梯度下降法直接迭代出图象位移的估计值。
The algorithm which utilizes the Steepest Descent Method can give the estimation of displacement between two frames of image directly.
证明了在符号定时精确已知时，时域估计方法和之前提出的频域估计方法的等价性。
Equivalence of the proposed method and the frequency domain estimation method proposed previously is proved.
估计并补偿频偏是为了实现载波同步，估计符号率和校正定时误差是为了实现码元同步。
Estimating and compensating carrier frequency offset are to achieve carrier frequency synchronization. Estimating symbol rate and correcting timing error are used to synchronize symbol.
提出一种在零前缀正交频分复用（ZP-OFDM）系统中，估计符号定时和载波频偏的算法。
The methods propose to utilize the zero padding prefix(ZP) characteristic of ZP-OFDM systems.
研究者界定了患病率作为“特定时期内现有的疾病人口总人数的估计”；
The investigators defined prevalence as an "estimate of the total number of cases of a disease existing in a population during a specified period";
研究者界定了患病率作为“特定时期内现有的疾病人口总人数的估计”；
The investigators defined prevalence as an "estimate of the total number of cases of a disease existing in a population during a specified period";
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