估计

According to the recommended frame structure of IEEE802.16,the independent correlation of multiple preambles and the unique words in data sequence were adopted in the algorithm,and the initial timing offset was estimated.

该算法基于IEEE802.16推荐的帧结构，利用多个前导字的独立互相关特性和数据序列中插入的独特字，对定时误差进行初始估计，并用内插环路进行定时估计误差的跟踪，获得定时同步结果。

Therefore, the use of proceeds of law index fund re-valuation, market participants have been worried about a possible resumption of its behavior may lead to arbitrage: In accordance with the provisions of the reorganization of listed companies resume trading day Price Limits, Assuming the stock resume trading day limit, as long as the pre-estimation of its sharp decline in more than 10% of the Fund to estimate the net value of the day there will be upward, ahead of an ambush investors sold stock to resume trading day fund could be boon.

因此，法律的指数基金收益再利用价值，市场人士一直担心其行为可能恢复可能导致套利：按照上市公司资产重组的规定复牌日涨跌幅限制，假设股票恢复交易日的限制，只要预先在超过10％的资金急剧下降的估计估计当天将有上升的净值，埋伏前投资者抛售股票恢复交易日的基金可以提供方便。

To overcome the above described drawbacks,P.W.Baier and other researchers propose a novel multi-user transmission scheme for the downlink of TD-CDMA termed joint transmission. This paper discusses the application of JT technology in the FDD system,and proposes a new solution: Through feedback signal,channel pre-estimation is accomplished at the base station.

为此提出了名为联合传输的多用户传输方式，可以利用TDD模式上下行链路移动无线信道脉冲响应相等的优点，只在上行链路对信道进行估计，下行链路利用估计得到的信道冲击响应值，把在移动台判决传输信号的任务交给基站来完成，利用这种技术可以提高系统性能和减少系统复杂性。1系统模型及JT原理联合传输技术[1～3]，可由信道传输概念引出，如图1所示。

According to the function of distributed emulator, optical information processing and image multi-object tracking system, the following three aspects were emphasized in this dissertation. Firstly, a vast virtual terrain, ground radar models and canyons were created for the distributed emulator with modeling software Creator. The radars were driven to scan during emulating and the real time terrain code was sent to Radar module. Secondly, an optics channel simulating the optics camera of a virtual aircraft was implemented with simulating software Vega. The 2-D information got from the channel was translated and sent to multi-sensor information fusion system as an optics information source. Thirdly, the dissertation studied some motion estimation methods and analyzed the factors which influence the speed and the precision of the block matching algorithms. Then an improved block matching method was proposed for image multi-object tracking system and applied in the system combined with frame difference method.

论文根据多传感信息融合实验系统中的分布式飞行仿真系统、光学信号处理器和图像多目标跟踪系统三个子系统的功能要求，具体完成了以下三方面的工作：首先利用建模软件Creator创建分布式飞行仿真系统中的大面积地形、场景中的地面雷达模型和峡谷地形，并在仿真过程中实时驱动雷达模型的扫描，同时为后续雷达仿真模块提供实时地形编码；其次利用仿真软件Vega，在分布式仿真系统中为光学信号处理器设计实现了光学通道，模拟飞行器的光学摄像机的功能，并且对由此通道获得的目标二维光学信息进行转化处理，作为光学信息源发送给后续的多传感信息融合器；最后针对图像多目标跟踪系统，在研究图像分割运动估计算法的基础上，通过分析影响块匹配算法速度和精度的因素，改进了块匹配运动估计算法，结合差分法可应用到目标跟踪系统中。

It is better for enhancing clock synchronization precision. And research one-way delay communication models, gives the analysis of real cases.

本文对网络时钟同步单向通讯模型进行了研究，采用数理统计估计法对网络延迟参数作了精确估计，并给出实例分析。

A model consisting of deception parameters is presented to estimate the states of target as well as the states of range gate pull-off in pulse Doppler radar.

建立一个包含欺骗过程参数的滤波模型，在估计目标状态的同时，对目标距离拖引欺骗的相关参数进行估计。

On the approximate uncorrelation property of DWT coefficients of LMSV process in the same scale and different scales, first the quasi maximum likelihood estimation method of parameters and the estimation method of volatility process of LMSV model are presented.

根据小波变换可将过程分解到不同的尺度上以及LMSV过程同一尺度下和不同尺度下DWT系数的近似不相关性，提出了建立局部似然函数的方法，又根据DWT系数和MODWT系数之间的关系，将局部似然函数表示为模型参数和局部小波方差估计的形式，并用该方法对中国股市收益进行了时变LMSV模型参数的估计。

The existence and convergence theorem of Newton method and quasi Newton method solving nonlinear equation with parameters F = 0 is obtained under point estimates and weak conditions.

在点估计条件下给出用Newton法及拟Newton法求解带参数非线性方程F = 0解的存在性定理和收敛性定理，以及误差估计。

Based on the cost of hardware implementation and the precision of estimation, a new block-matching algorithm named the Hierarchical Quasi-Full Search Algorithm is proposed.

综合考虑硬件成本和运动估计的精度，提出了一种易于硬件实现的运动估计算法，称之为分层准全搜索法。

Compared with the single-bounded questionnaire format, the double-bounded questionnaire format could obtain more information about the respondents' willingness to pay, hence, it reduces the confidence interval range and improves the estimation accuracy of the greatest willingness to pay. At the pilot practice for three continuous years, the percent of banana windstorm insurance pilot size in the total banana planting area was less than 10% in Hainan. Combined with this research result, the author holds that Hainan finance should strength the subsidy to banana windstorm insurance on the basis of 30% subsidy in two continuous years of 2007 and 2008, and the subsidy percentage should try to achieve 40%. At the same time, the premium rate should not be too low, 18% is suitable.

与单边界问卷格式相比，双边界问卷格式能够获得被调查者支付意愿的更多信息，从而缩小了估计的置信区间，提高了最大支付意愿的估计精度；在连续3年的试点实践中，海南香蕉风灾保险试点规模占其香蕉种植面积不足10%，结合本研究结果，笔者认为海南省财政应在2007、2008连续两年30%的财政补贴基础上进一步加大对香蕉风灾保险业的补贴力度，力争补贴比例达到40%左右，同时费率也不宜过低，宜保持在18%左右。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。