查询词典 error model

To explore the mechanism of the follower rest,a united model is developed to simulate the formation of the diameter error of the slender bar.

为探索跟刀架的作用机理，开发了一个联合模型用以仿真细长轴车削尺寸误差的形成过程。

Aiming at the key technology of numerical control, taking NC gear shaper as research object, some issues are studied in this paper.1 NC gear shaper YK5120 was developed.1 Three dimensional model of NC gear shaper is built, kinematics simulation and interference checking of NC gear shaper are carried out.2 Based on kinematic theory of multi-body system, the precision of gear shaper and the error of generated gear are analyzed and simulated.3 Applying finite element software, the natural frequency and mode of NC gear shaper are analyzed.

本文针对插齿机数控化中的关键技术，以数控插齿机为研究对象，做了以下研究工作：1 设计完成YK5120型数控插齿机机械结构；2 建立了数控插齿机的三维模型，并对其进行了运动仿真和干涉检验；3 以多体系统运动学理论为基础，对数控插齿机的精度和齿轮加工误差进行了分析与仿真；4 应用有限元软件，对数控插齿机的各阶固有频率及振型进行了分析。

Imbursed by the sub-item"Research on System Framework of Joint Source-Channel Coding under Wireless Circumstance"of national high-tech research and development plan(863 plan)"Digital Audio, Video Encoding, Transmission, Testing and Applying Model"(No.2002AA119010), and the great item"Research of Future Communication System Fundamental Theory and Technology (No.60496315)", the dissertation studies several key techniques of Low-Density Parity-Check Codes that were considered much in error correction codes field.

本文正是在国家高技术研究发展计划(863计划)&数字音视频编码、传输、测试与应用示范&(No.2002AA119010)的子课题&基于无线环境的联合信源信道系统框架研究&、国家自然科学基金重大项目&未来移动通信系统基础理论与技术研究(No.60496315)&等研究项目的资助下，对近年来在纠错码领域表现抢眼的低密度校验码(Low-Density Parity-Check Codes，LDPC)的若干关键技术展开了研究。

The geometrical characteristic of error hand for 2D linear segment uncertainty ε(subscript σ) model has been studied in this paper.

对地理信息系统中2维线元不确定性ε模型的误差带的几何特征进行研究。

To model and compensate the magnetic heading error of the magnetic compass system which in a carrier with some pitch angle or roll angle,a new deviation compensation algorithm based on RBF neural network is presented.A BP neural network has been developed to solve the same problem for comparison.

针对具有一定俯仰角或横滚角的磁罗盘系统磁航向误差建模和补偿问题，提出了基于径向基函数神经网络的修正方法，并与BP神经网络方法进行了比较。

Minimum mean-square error decision feedback equalizer was used to preprocess this model and a decoder with boundary controlled Fano tree search algorithm was proposed.

该解码器可达到几乎最大似然性能，在很大的信噪比区域范围内其复杂度比目前典型的解码器低，而且该解码器可用于发射天线数大于接收天线数的系统。

In this paper, the framework of measuring head of large diameter measurement system in multi-rolling-wheel method is designed by using the designing knowledge of precise mechanic, the knowledge of data processing and error correction and the method of the mathematical model fitting about measuring force and wheel deformation is described.

本论文中应用精密机械设计、数据处理与误差修正等知识，介绍了大直径多滚压轮测量系统的测量头结构设计和滚轮变形与测量力之间数学模型的拟合方法。

In this paper, the framework of measuring head of large diameter measurement system in multi-rolling-wheel method is designed by using the designing knowledge of precise mechanic, the knowledge of data processing and error correction and the method of the mathematical model fitting about measuring force and wheel deformation is described.

中文摘要：本论文中应用精密机械设计、数据处理与误差修正等知识，介绍了大直径多滚压轮测量系统的测量头结构设计和滚轮变形与测量力之间数学模型的拟合方法。

As an example, the mobilities for 50, 150 and 300 bp DNA molecules are calculated using this model, which matches the experimental data with a error less than 5%.

算例表明对于50，150和300bp的DNA片段，在低电场强度下，迁移率误差值在5%以下。

According to verifying 11 vacuating wells parameters such as structure and sand body thickness that have been predicted by model, it shows high coincidence rate of more than 90% to real datum. Moreover, the permeability variation in pilot site accords with water flooding situation. The computed parameters such as reserves, cumulative oil production of single well and area, water cut have small relative error of less than 2%, the matching accuracy degree is high.

通过11口抽稀井检验，模型预测的构造、砂厚等参数与实际情况相比，符合率在90%以上；试验区的渗透率变化与水淹状况也具有较好的一致性；储量、区块及单井累积产油量、含水等参数计算的相对误差均小于2.0%，拟合精度高。

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。