卫星系统

In a system of space optical communication,it will influence to bit error rate of the communication system when the optical transmitter wiggles as vibration of the satellites platform.

在空间光通信系统中，由于卫星平台的振动，使得光发射机发生摆动，从而对通信系统的误码率产生影响。

The stable tracking technology which is one of the key technologies for mobile status communication system has become a hotspot. In order to develop the car-borne antenna stable tracking system, this paper discusses the whole scheme of the antenna system.

天线稳定跟踪技术作为各类移动载体卫星通讯系统中的关键技术之一，已成为了当前移动载体稳定跟踪系统应用领域的一大研究热点。

The principal technique for the measurement system of marine gravity is improved, the gyro stable platform adoptes the technique of optic fibred gyro extensively, the new technique for correction of cross-coupling error is developed, the gravity system is accomplished with digital control, and the satellite altimetry technique is introduced into the area of marine gravity measurement.

海洋重力测量系统的主体技术得到改进，陀螺稳定平台广泛采用光纤陀螺技术，开发出改正交叉耦合效应的新技术，系统实现数字化控制，卫星测高技术引入海洋重力测量领域。

RVs . A member of KVH's new SlimLine family of satellite TV systems, the in-motion TracVision R6 ST is a complete standard definition DIRECTV system with everything you need to enjoy TV in your RV.

一名成员KVH新的超薄型家庭卫星电视系统，在运动TracVision R6 ST是一个完整的标准清晰度直播电视系统，你需要的一切享受在您的电视房车。

PSis space-base radio positioning system that can provide accurate positioning and high precision time information to user anywhere on the surface of the earth at anytime.

PS即全球定位系统，它是一个中距离圆形轨道卫星定位系统，可以为地球表面绝大部分地区提供准确的定位和高精度的时间基准。

Major process products have: jig and fixture of aircraft assembly plant and auxiliary tools; tire vulcanization and tire production line、transmission line 、loader、Lay-tire equipment、tire mould、clean mould machine、repair mould machine、tire mold 3D intelligent;warehouse palletizer;oil platform;fur machinery; electrical engineering alloy、contact process;hydraulic elevator accumulator、1t—50t electric hoist and crane machine; door and window manufacturing machine、varouris kinds of large scalestabilization machinery and mixing machine; Grain and oil produce equipment、auxiliary machine and control system; Satellite Launching base facilities; tire forming machine、cutter etc equipment parts; various kinds of box of reducer; milk packing machine and parts; elevator up and down operate panel、controlling Single Chip Micr-computer and Elevator Group Supervisory Control System; repair circuit disk produce equipment and imported equipment copped; air and water treatment equipments,etc.

主要加工产品有：飞机组装厂夹具和辅助机具；轮胎硫化机及轮胎生产线、传输线、抓胎机、存胎器、轮胎模具、洗模机、修模机、轮胎模具智能三维检测仪；立体仓库堆垛机；石油钻井平台；皮毛机械；电工合金、触头加工；液压升降台、1吨－50吨电葫芦和起重机；门窗生产机具、各种大型搅拌机械和研磨机械；粮油生产设备、辅助设备和控制系统；卫星发射基地设施；轮胎成型机、裁断机等设备配件；各类减速机箱体；牛奶包装机及配件；电梯升降操纵面板、控制单片机和电梯群控系统总成；线路芯片生产设备大修和进口设备仿制；空气和污水处理设备等。

And using it, the above algorithms are tested and verified with experiments. The real time simulation experiments proved that the maneuver algorithms can fast slew small satellite attitude, and the reaction wheel low-speed friction suppressing technique can improve small satellite attitude stabilization accuracy.

为促进上述研究内容的实用化，结合工程实际，研制开发了快速原型实时仿真系统，为现代小卫星姿态控制系统的研制提供了一体化环境，使得实物或半实物实时仿真的快速实现成为可能。

The rapid maneuver algorithm could be applied to attitude capture and control without the precise system model. With dSPACE real times simulation system, reaction wheel, fiber gyro and on-board computer a hardware-in-the-loop was processed to validate the algorithm.

文中设计的快速机动控制器，无需知道系统精确模型，即可实现卫星任意时刻的姿态捕获和机动控制，并釆用dSPACE实时仿真系统、反作用飞轮实物、光纤陀螺实物和星载机，在单轴气浮台上进行了半实物仿真验证。

The system needs the help of satellite receiving station.

卫星运行仿真系统是一个大型的系统，需要很多人来共同开发，需要投入更大的物力、财力，开发完善成功后必将获得巨大的经济和社会效益。

In addition, the modal analysis is made using FEA method in three working states: fixing the reinforced panel upon the slip table, the slip table and vibration fixture as a vibrating system, and considering the mass of satellite.

通过有限元方法分析了安装加强台面后对水平滑台、水平滑台与振动花盆组成的振动工装系统、考虑卫星质量影响的振动工装系统等三种工况下模态振型的变化，说明抗弯模量有明显提高。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。