查询词典 error estimation

a scheme of channel estimation using cyclic prefix based on the measurement of the low-voltage power line channel model is presented.after obtaining the frequency response of pilot sub-channel under the state of comb-type pilot,the data sub-channel response is obtained by interpolating the frequency response in frequency direction.in the pilot-free data period,the estimation of the channel is carried out by using cyclic prefix in order to improve the performance of system error rate.

摘 要：通过实际测量给出低压电力线的信道模型，在此基础之上提出了利用循环前缀对信道进行估计的方法，即在梳状导频模式时，使用导频获得导频子信道频率响应后，对其在频域方向进行插值得到数据子信道响应，在其后没有导频的序列的数据周期内，使用循环前缀对信道进行估计，从而起到改善系统误比特性能的目的。

The approach is applied to the estimation of weapon material. Experimental results show that the estimation error for the case is less than 10%.

将该方法应用于导弹主要参数的估算，测试结果证明了此方法的正确性和可行性。

The causation of delays between channels,the source of error in estimation process,computer simulation and testing results about estimation process are also discussed.

讨论了产生通道间延时的原因以及评价过程的误差来源，同时给出了评价过程的计算机仿真与测试结果。

Furthermore, the situation of the targets and imaging devices considering noise is studied. The recurrence formula of parameter estimation and the steady variance of estimation error are given.

进一步研究了目标受到干扰及成像设备存在噪声情况下的目标运动参数的估计问题，得到了参数估计的递推公式，并给出了估计误差稳态方差的范围。

The shape information of surveillance objects is represented as macro-block coordinates. The temporal redundancy is eliminated by motion estimation within the surveillance region in the reference frame. Since the number of luminance levels is reduced due to enhancement process, the residual error of motion estimation is compressed with lossless entropy coding.

监控对象的形状信息表示为宏块坐标；监控对象之间的时间冗余通过运动估计来消除，但搜索范围限制在前一帧监控对象区域之内；由于增强处理使得监控区域的灰度级减少了，所以对运动估计的残差进行无损熵编码。

Second, when the error distribution of the model is the Laplace distribution, the L1 estimation of 1-D location estimation is essentially the sample median, hence the study of the Laplace distribution is also important.

第二，由于当模型的误差分布是拉普拉斯分布时，一元位置的最小一乘估计是样本中值，因此对于拉普拉斯分布的研究也是至关重要的。

The invention can determines accurate time of information service constituted by a cluster of packet of bandwidth, enable network time delay to influence little on bandwidth estimation computation result; filter automatically regulates self stability and agility following link wave motion, promotes anti-error code interference ability of estimation result.

本发明能够得出带宽为一簇信息包组成的信息流服务的准确时间，使得带宽估计的计算结果不受到网络时延的任何影响；随链路波动状况自动调整自身稳定性与敏捷性的滤波器，提高了估计结果抗误码干扰的能力。

In addition, this approach was used in the estimation of the composition of the product P with a single time delay system in the oil refinery process. In comparison to the filtering approach without delay information, the estimation error of the proposed method is smaller.

应用本文所提方法对由石油精炼过程构成的单时滞系统中的产品 P 含量进行了估计，并与时滞无关的无偏H∞滤波器相比，时滞有关的无偏H∞滤波器的估计精度高，说明了本文方法的可行性。

First, for state estimation problem of the linear stochastic systems with uncertainties in both the state matrix and the noise matrix, a new satisfactory estimator is constructed with stochastic theory, which can guarantee that estimator error system with bounded perturbed model parameter satisfies the constraint indexes that is given. Thus a sufficient condition of solving satisfactory estimation is obtained; secondly, the algorithm of designing satisfactory estimator is presented by analysis.

首先，根据满意控制思想，针对一类在状态矩阵及噪声矩阵中均含有不确定性的随机系统，设计一种满意估计器，使预测误差系统在模型的参数发生扰动时，依然满足预先给定的设计约束指标，得到了满意估计问题求解的充分条件；然后根据分析给出了满意估计器设计的算法。

Furthermore that the square measure error is not depending on the choice of generalized matrix inverses is proved. Finally the least square estimation and the maximum likelihood estimation for this model are proposed.

在此基础上对奇异度量误差下的函数关系模型的参数进行估计，得出了模型参数的最小二乘估计和极大似然估计。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。