查询词典 error model

When data are balanceable, two methods should have no difference, but the standard error computed by two-level model is bigger than that by generalized estimating equation. When data were unbalanceable, generalized estimating equation shows somewhat advantage. Type 2 diabetes mellitus might exist genetic heterogeneity and there is no gene that is related with the occurrence of bipolar disorders.

当数据平衡时，两者结果一致，但多水平模型计算出的标准误大于广义估计方程算出的标准误；当数据不平衡时，两者结果不一致，广义估计方程更能检测出有统计学意义的基因位点。

On the basis of introducing the channel and system model of wireless optical communication,average bit error rate of uncoded and RS coded system with channel side information were analyzed,and compared with Turbo coded system from the following two aspects:received optical power and Log-amplitude fluctuation variance.

在介绍无线光通信信道及系统模型的基础上，推导了无线光通信未编码系统和RS编码系统在已知信道边信息条件下的平均误码率，从接收光功率和对数振幅起伏方差方面对RS码编码系统和Turbo编码系统的性能进行比较。

This dissertation gave an in-depth study to the effect of radome error upon the guidance system and gave a formula for that effect with missile dynamics of arbitrary order and unsimplified seeker model. Based on that, the critical condition for the design of guidance controller under the radome effect was derived.

本文深入研究了天线罩瞄准线误差对制导控制系统稳定性的影响，得出了在任意阶导弹动力学模型和非简化导引头模型下，天线罩瞄准线误差对制导控制系统的影响公式，并由此得出了天线罩瞄准线误差影响下导引控制器设计的极限条件。

The model error of direction finding system is analyzed and calibrated.

对阵列测向系统的模型误差进行了分析与校正。

Through field measurement for the contact pressure of box foundation with Ⅰ shaped plane of a high rise building on cobble subsoil, the distribution law of the contact pressure has been diagrammed. At the same time, the contact pressure has been calculated with finite compression layer model, which is well accordant with the measured result. The relative error of average value for the measured to the calculated contact pressure is 6.9%. This shows that the numerical calculation is right.

通过对西南交通大学某教学楼箱形基础基底反力的实测结果，得出了&Ⅰ&形平面箱基置于密实卵石层上的基底反力分布规律，又用有限压缩层地基模型对该箱基反力进行了计算，结果表明：实测反力与计算反力分布规律一致，实测反力平均值与计算反力平均值相对误差为6.9％，也说明此法计算箱基反力是可行的。

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。

A parametric surface was reconstructed at a local area of each sample point, and a believing neighbor area was generated based on a given error. A new parametric surface was recomputed, and a larger believing area was generated. The surfel with largest believing area was reconstructed, and the original model was approximated by the surfel in an as large as possible local area.

该算法在每个采样点附近重建一个函数曲面，根据给定误差得到置信邻域，重新计算函数曲面，得到更大的置信邻域，如此反复迭代，产生一个具有最大置信邻域，并在更大范围内逼近原模型的面元。

The settlement observation of bridge pier and abutment was discu ssed. The GM prediction model of the settlement observation error and t h e settlement development was established to set up system for bridge saftely use and maintenance.

阐述了桥梁墩、台沉降变形的观测，建立了桥梁墩、台沉降观测误差和沉降变形逐年发展情况的GM预测模型，为桥梁安全使用，养护管理决策提供可靠的科学依据。

Having set up the model of the SAR platform motion errors, we study the effects of the motion error both in azimuth and range direction of the SAR platform on the images' focused performance.

在建立机载UWB SAR运动误差模型的基础上，研究了方位向和距离向载机运动误差对于成像性能的影响。

The numerical results show that: the stress distribution on contact surface is relative to the relative velocity of sliding block and friction coefficient, and the maximum relative error of stress can be 100.08%. The non-linear Stribeck friction model can better describe the real situation of contact surface, because of the consideration of impact of the relative velocity to the friction.

研究结果表明：随着接触体相对速度的改变，摩擦因数相应变化，接触面上的应力与位移的分布随之改变，应力最大相对误差达100.08%；Stribeck模型考虑了速度对摩擦因数的影响，更能描述接触的真实情况。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。