卫星系统

Air China has developed on its own the operation management system, integrated satellite telephone system, space data communication system and shortwave wireless system, which made it the first airline company with the super long-distance supervision capacity in the country. In 2004, after the use of shortwave communication systems, the supervision network which has Beijing and Lhasa as the core, covers the Asian continent, the Indian Ocean and Pacific Ocean stretching to the arctic pole area.

国航自行研制开发了运行管理系统，集成了卫星电话系统、空地数据通讯系统和短波无线电系统，使国航成为国内第一家具有超远程监控能力的航空公司，尤其是2004年短波通信系统的投入使用，形成了以北京、拉萨两点为圆心，全方位、全时空、全天候覆盖亚洲大陆、印度洋和太平洋，并延伸到北极区域的监控网络。

Considering the limits of RDSS in active positioning mode,such as poor security,limited capacity,and inability to continuously provide position,velocity and attitude outputs,a technique of tightly coupled RDSS /SINS integrated navigation system is proposed for land vehicles by utilizing the time differenced carrier phase of 3 geostatic satellites.

针对北斗系统有源定位方式保密性差、用户数目有限，不能提供连续的位置、速度、姿态信息的问题，提出利用北斗系统3颗地球静止卫星的载波相位时间差分信息，与车载捷联惯导构成紧组合导航系统，通过扩展卡尔曼滤波器估计并修正惯导系统的速度误差；引入载体的侧向和天向速度约束，改善了速度估计精度；结合北斗系统的伪距信息，消除了长航时条件下位置误差的积累；推导了滤波器观测方程，对组合导航滤波器进行了设计；通过车载实验进行了验证，实验结果表明，速度误差和位置误差的积累受到了有效地抑制，精度满足陆地战车导航的要求。

SPWM full-bridge inverter and isolating transformer output makes UPS own superstrong load shock capacity as well as computers,network,military communication system,satellite communication system,high-grade medical equipment,precision instruments and equipment,monitor protection system,statellite communication system,fire fighting illumination system,financial securities network,broadcasting station sending and receiving system as well as jinformation transmission system.

适用于：计算机及网络系统、军用通讯系统、卫星通信系统、高级医疗设备、精密仪器设备、监控保安系统、消防照明系统、金融证券网络、电台发射及接收系统、信息传输系统等领域。

Our product line includes digital television receivers (Terrestrial, Cable, Satellite, MMDS), digital headend equipments (Professional Satellite Receiver, Encoder, Multiplexer, Scrambler, Modulator), and software and solutions (Conditional Access System, Subscriber Management System, Electronic Program Guide).

我们的产品主要包括数字机顶盒(地面/有线/卫星/ MMDS )，数字电视前端设备(专业卫星接收机/编码器/复用器/加扰机/调制器)，以及软件和方案(条件接收系统/用户管理系统/电子节目指南)。

Our product line includes digital television receivers (Terrestrial, Cable, Satellite, MMDS, IPTV), digital headend equipments (Professional Satellite Receiver, Encoder, Multiplexer, Scrambler, Modulator), and software and solutions (Conditional Access System, Subscriber Management System, Electronic Program Guide).

我们的产品主要包括数字机顶盒(地面/有线/卫星/ MMDS /IP 机顶盒)，数字电视前端设备(专业卫星接收机/编码器/复用器/加扰机/调制器)，以及软件和方案(条件接受系统/用户管理系统/电子节目指南)。

Our product line includes digital television receivers (Terrestrial, Cable, Satellite, MMDS, IPTV), digital headend equipments (Professional Satellite Receiver, Encoder, Multiplexer, Scrambler, Modulator), and software and solutions (Conditional Access System, Subscriber Management System, Electronic Program Guide).

我们的产品主要包括数字机顶盒(地面/有线/卫星/ MMDS /IP 机顶盒)，数字电视前端设备(专业卫星接受机/编码器/复用器/加扰机/调制器)，以及软件和方案(有条件接受系统/用户管理系统/电子节目指南)。

Our product line includes digital television receivers (Terrestrial, Cable, Satellite, MMDS, IPTV), digital headend equipments (Professional Satellite Receiver, Encoder, Multiplexer, Scrambler, Modulator), and software and solutions (Conditional Access System, Subscriber Management System, Electronic Program Guide).

我们的产品主要包括数字机顶盒(地面/有线/卫星/ MMDS /IP 机顶盒)，数字电视前端设备(专业卫星接受机/编码器/复用器/加扰机/调制器)，以及软件和方案(条件接受系统/用户管理系统/电子节目指南)。

It can be used in the tracking system of a mobile satellite communication system to make the beam of the directional antenna on a vehicle point to the satel...

该系统能消除载体的变速运动对输出航姿角的影响，结构简单、紧凑，成本较低，可用于定向性移动卫星通信天线跟踪卫星的开环控制系统中。

The website installs collaboration of group of dispatch of palm of in relief branch, Beijing through moving with China, with 8 hang net database to be a foundation, developed new other people to shed information client to carry system, content to shed system of mobile phone WAP, content to shed short message system, satellite to locate system and network communicate system, with 8 hang net portal website one case, compositive content sheds one library 6 platform.

网站通过与中国移动安阳分公司、北京掌讯集团合作，以八挂来网数据库为基础，开发了新的物流信息客户端系统、物流手机WAP系统、物流短信系统、卫星定位系统和网络通话系统，与八挂来网门户网站一起，组成物流一库六平台。

The design includes an integrated property management information system, families intelligent systems, structured wiring systems, computer network systems, visitors phone systems, satellite and cable television systems, video surveillance and perimeter to prevent system, electronic patrolling system, one-card management system, the car park management systems, and weak electricity and telephone network engineering, public broadcasting system, large-screen display systems, electrical and mechanical equipment control system, totaling 14 ground systems, functional, configuration and reasonable.

该设计方案包括综合物业信息管理系统、家庭智能化系统、结构化布线系统、计算机网络系统、访客对讲系统、卫星及有线电视系统、视频监控及周界防范系统、电子巡更系统、一卡通管理系统、停车场管理系统、电话及弱电管网工程、公共广播系统、大屏幕显示系统、机电设备控制系统等共14个子系统，功能齐全，配置合理。

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。