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_基于射线跟踪模型的3.5 GHz无线传播特性研究
说明： 3.5 GHz 是 5G 网络部署的重要频段，本文结合射线跟踪模型，对 3.5 GHz 的无线传播特性进行了研究，并于 1.8 GHz 进行了对比，提出 5G 网络初期部署的建议(3.5GHz is an important frequency band for 5g network deployment. In this paper, the radio propagation characteristics of 3.5GHz are studied in combination with ray tracing model, and compared with 1.8GHz. Suggestions for initial deployment of 5g network are proposed)
- 2019-12-11 10:08:09下载
- 积分：1
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Desktop
abaqus 帮助文档中的蠕变本构模型，包括时效强化模型和应变强化模型，以及一个模型的inp文件(Creep constitutive model in abaqus help document, including time-based reinforcement model and strain reinforcement model, and inp file of a model)
- 2020-06-22 16:00:01下载
- 积分：1
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chapter5attitude
说明： 卫星姿态是指卫星星体在轨道上运行所处的空间指向状态。将直角坐标系的原点置于星体上，指向地面的Z轴反映偏航方向，Y轴反映俯仰方向，X轴反映滚动方向。星体在高空中沿局部地球铅垂方向和轨道矢量方向运行，不时地产生对三轴的偏移。姿态控制是通过姿态控制分系统（ACS）来实现，使用地平扫描仪可感应俯仰和滚动轴的姿态误差，使用速度陀螺仪和罗盘可感应偏航轴的姿态误差。(Satellite attitude refers to the spatial orientation of a satellite in orbit. The origin of the Cartesian coordinate system is placed on the star, the Z axis pointing to the ground reflects the yaw direction, the Y axis reflects the pitching direction, and the X axis reflects the rolling direction. The stars move along the direction of the earth's vertical direction and the orbit vector in the high altitude, resulting in the deviation of the three axis from time to time. Attitude control is realized by attitude control subsystem (ACS). The attitude error of pitch and rolling axis can be induced by using horizon scanner, and the attitude error of yaw axis can be induced by using speed gyroscope and compass.)
- 2017-10-29 16:46:09下载
- 积分：1
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瞬态动力学分析
三个ANSYS瞬态分析的命令流：冲击载荷作用悬臂梁的阻尼振动分析；破碎锤的瞬态动力学分析；滑动摩擦接触分析(Three command streams of ANSYS transient analysis: damped vibration analysis of cantilever beam under impact load; transient dynamic analysis of crushing hammer; sliding friction contact analysis)
- 2020-06-16 19:20:01下载
- 积分：1
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IMMPDA
对数据融合算法中经典的交互式多模型法进行仿真，便于入门级进行学习(Simulation of classical method which is interactive multiple model method and it is easy for entry-level learning)
- 2017-08-15 14:00:31下载
- 积分：1
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test
基于CARSIM的驾驶员预瞄模型实现无人车路径跟踪(The pilot model realizes the path tracking of the driverless car)
- 2017-09-20 15:11:19下载
- 积分：1
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单个圆形活塞换能器指向性
使用matlab进行超声波阵列指向性仿真(Simulation of directivity of ultrasonic array using MATLAB)
- 2021-04-04 15:09:04下载
- 积分：1
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system
对连续波雷达系统从数据建模到后续处理最后检测目标(For continuous wave radar system, from data modeling to subsequent processing, final detection target.)
- 2018-08-16 13:40:14下载
- 积分：1
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boost
说明： 状态空间Boost建模，用增广系统进行状态反馈控制恒压(The state space boost model is built, and the augmented system is used to control the constant voltage)
- 2020-12-28 14:44:21下载
- 积分：1
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几个lammpsin文件
说明： 一个计算铜的热导率的in文件，基于lammps软件(An in file for calculating thermal conductivity of copper)
- 2020-12-21 17:29:13下载
- 积分：1
