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Simulation results prove that,compared to the zero forcing method,the proposed method achieves 9 dB gains under 10-4 of average bit error rate and similar simulation conditions.

仿真实验表明，所提出的方法与迫零法相比，在相同的仿真条件下，在平均误比特率为10-4时可以获得约9 dB的性能增益。

This paper expounds the approach to simulation of the roller gear indexing cam based flexible cam axes,and studies the method of forcing between flexible cam axes and rigid graduator to set up the model for simulation of the roller gear indexing cam based rigid-flexible coupling .

阐述了在考虑凸轮轴柔性条件下实现弧面分度凸轮机构运动仿真的途径和步骤，结合有限元技术和虚拟样机技术，研究了如何在柔性体凸轮轴与刚体分度盘之间施加作用力的思想和具体实现方法，为该机构的刚柔耦合运动仿真提供了基础模型

Our simulation shows that our proposed method reduces frame loss rate in all the simulation settings.

我们的数值模拟展示了我们提出的方法在所有模拟设定降低了失去画面的比率。

At the same time, the function flow chart of machining simulation systems is given and a common method and process of developing machining simulation systems is educed.

同时，本文给出了金属切削加工模拟系统的功能框图和建立加工模拟系统的一般方法和步骤。

Based on the powerful function of simulation and series of simulation models for devices in protues, a new way is provided to simulate the electronic technology.

基于Proteus强大的仿真功能和丰富的元件仿真模型，提出了新的用于电子技术的仿真方法。

The application of Visual Simulation in the military research area will affect military furnishment capability and research efficiency. visual simulation ; modeling ; texture ; Vega ; OpenGL

视景仿真技术对作战装备的使用效果有很好的实时显示，给人以强烈的视觉上的冲击，对提高武器装备的性能、研

Based on the simulation of Section DK84+050, the application of gapped pile foundation in subgrade was researched and the comparison with practical project simulation was made. Furthermore, the development of the settlement of ground, the stress of soil and pile and dissipation of pore pressure was also studied.

在DK84+050断面模拟的基础上，研究了预留净空桩基础在路基中的应用，并与实际工程的模拟进行了对比分析，研究了地面沉降发展情况、桩土应力发展情况及孔压消散的发展。

The reason why quaternion is used in flight simulation of fighter aircraft and the geometric meaning of quaternion are described,according to axis system used in flight simulation of fighter aircraft in China,three problems are introduced as follows:(1) quaternion kinematic equations,(2) relationship of quaternion and coordinate transformation matrix,(3) Euler angles in terms of quaternion.

阐述了在战斗机的飞行仿真中采用四元数的原因和四元数的几何意义，并按照中国战斗机飞行仿真中采用的坐标系，介绍了三个问题：四元数运动学方程；四元数与坐标变换矩阵的关系；用四元数表示的欧拉角。

Based on the study of a discrete chaotic system of numerical solution and graphical simulation, while for discrete time-delay chaotic system a numerical simulation procedure.

详细说明：摘要：基于研究了离散混沌系统的数值解法和图形仿真，同时针对离散时滞混沌系统给出了数值仿真的程序。

On the basis of the minimum scale soil nutrient distribution generated randomly based on the given values of mean, standard deviation and related distance, or obtained by geostatistics analysis based on soil sampling data, the amount of fertilization, yield and fertilization use efficiency at different scales were calculated by related fertilizer models and yield models supported by geographical information system and computer simulation, then the simulation result was intuitively visualized by curve graphics and RGB primitive colors synthesized image and thematic maps.

系统通过随机数生成法或地统计分析法生成最小尺度条件下的土壤养分空间分布数据，以此为基础，采用GIS、计算机模拟技术模拟不同尺度的养分空间分布，并以肥料效应模型和产量模型计算不同尺度条件下的施肥量、产量和肥料利用效率，最后通过曲线图、三原色合成影像和GIS专题图实现形象直观地表达模拟结果。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。