查询词典 estimation of error

The upper bound of the derivative estimation error using proposed scheme is computed in order to compare with those using AVSDE.

并以本文提出的技巧来计算出导数估测误差的上界后，和AVSDE计算出的上界两者做比较。

He is a waspish critic of American policy towards the Muslim world under George Bush, but manages toWestern misconceptions without falling into Mr Crooke's error of taking extremist movements entirely at their own estimation.

他是乔治？布什手下主要负责美国对穆斯林世界政策的一名尖锐的评论家，成功地刺痛了西方误解，而没有陷入克鲁克根据自己的的判断完全采取极端主义运动的错误中。

But in the case of long-range acoustic communications in shallow water it is disturbed by severe multipaths whid produce increased inter-symbol interference. So the error of frequency estimation for the week signals is bigger and the BER becomes larger.

但是，用于浅海远程水声通信时，由于多径传播的影响，导致严重的码间干扰，使得远程微弱信号的频率估计产生较大偏差，误码率显著增加。

The reestablish and error estimation formulas of the non-noise signal under the finitive scale condition is given for the basic filtering operation of high pass, low pass, and band pass respectively. The signal Wavelet analysis softwave developed, which is of some common use, and is served as the basis of the research following it, is also introduced here.

第二章首先建立了突变信号的数学模型；导出了对突变信号进行连续小波分析的尺度截取准则；分别针对突变信号进行高通、低通和带通三种基本滤波操作的情况，给出了在有限尺度分析情况下的非噪部分信号的重建估计和误差估计公式；并介绍了所开发的作为后续工作的基本分析工具、具有一定通用性的信号小波分析软件。

The article adopted a new filtering-cloud composing technology used to monitoring drought,analyzed the property of Ts—NDVI characteristic space and the TVDI's indicating drought ability, put forward the TVDI compute model, grade standard, and the impact estimation method. The result indicated: 1 the decade-composed data obtained by the maximum surface temperature principle has better ability than the composed data obtained by the maximum NDVI on monitoring drought; 2 in the Ts-NDVI characteristic space,the dry side and the wet side almost are horizontal lines when the NDVI is on the small side, the temperature difference is about 45℃; 3 the TVDI has inequable level on monitoring drought as its value, the less TVDI indicates without drought occurrence, the bigger TVDI shows the drought certainly happened, the unsure drought conclusion mainly comes from the middle TVDI; 4 the monitored results of Sichuan hot-drought in 2006, obtained by the remote sensing and by the climate index, are basically consistent, the estimating error on the bearing drought crop area and on the drinking trouble population is within 10%.

采用了干旱监测合成滤云新技术，分析了Ts—NDVI特征空间属性和TVDI指数干旱监测能力，提出了四川伏旱TVDI计算模型、分级标准、和影响评估方法，结果表明：1按最大地表温度原则得到的旬合成数据比按最大植被指数原则得到的旬合成数据具有更强的旱情监测能力；2在Ts—NDVI特征空间中当NDVI较小时干湿边几乎同为水平直线，两者相差约45℃；3TVDI指数因其大小不同而对旱情的监测能力也不一样，较小时说明没有干旱发生，较大时则一定有干旱发生，中间段对干旱的监测具有不确定性；42006年四川伏旱遥感监测与气候监测结果基本一致，农作物受旱面积与饮水困难人口数估算误差在10%以内。

According to the monotonically increasing match criteria around the location of the optimal motion vector a fast fractional motion estimation algorithm based on the group error is presented.

根据匹配准则的目标函数在最优运动矢量的附近都是单调递增这一假设，提出一种基于分组误差的快速分数像素运动估计算法。

In the first part, first of all, we have a priori estimate for solution of the reaction-diffusion equation with initial condition and Dirichret boundary conditions. Then, we construct a semidiscrete Legendre pseudospectral scheme, and have a priori estimate for approximate solution. We discuss the asymptotic stability of approximate solution. At last, we get a error estimation on large time for solution of the semidiscrete system.

首先，对此类方程初边值问题的解进行了先验估计；然后建立方程半离散的Legendre拟谱格式，并对近似解进行了先验估计，讨论了近似解的渐近稳定性；最后，得到了半离散系统解的长时间误差估计。

The simulation results show that the performance of uncoded Symbol Error Rate can reach the bound of ideal channel estimation at the proper step size.

仿真结果表明，选择合适的步长，算法误符号率性能基本接近理想估计的性能界。

Using a fitting method which can reasonably assign weight to the observational data including two quantities with different dimensions, we obtain a V-band MRL based on the dynamical masses and luminosities of 203 main sequence stars. Compared with the previous work, the improved MRL is statistically significant, and the relative error of mass estimation reaches about 5%.

利用一个能合理分配两个不同量纲观测量权重的拟合方法，根据203颗恒星的动力学质量和光度数据给出了主序星的V波段经验质光关系，该结果对此前结果的改进不仅具有统计显著性，而且其对恒星质量估计的相对误差已达到约5%。

In terms of channel coding, a frame-level unequal error protection scheme and performance estimation model for wireless video transmission is proposed, and a novel algorithm for video data packeting is presented.

利用这些预测公式，通过少量计算便可以较为准确的预测H.264输出码流的码率和恢复质量；在信道传输方面，本文主要提出了一种帧级不平等保护策略及其编码质量的预测算法以及一种新型的数据打包方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了