Tracking law of tracking and data relay satellites;
中继卫星对目标的跟踪规律研究
While adopting an elevation-over-azimuth architecture by an inter-satellite linkage antenna of a user satellite, a zenith pass prob- lem always occurs when the antenna is tracing the tracking and data relay satellite (TDRS).
用户星星间链路天线采用方位-俯仰型支撑方式,它在跟踪中继卫星时存在过顶跟踪问题。
The Object of this dissertation is Tracking and Data Relay Satellite in the Tracking and Data Relay Satellite System.
本论文以跟踪与数据中继卫星系统中的中继卫星为研究对象,为实现中继星连续跟踪用户星,进而实现中继星对用户星轨道的精确测定这一目的,对中继星S频段相控天线展开、中继卫星高精度天线跟踪指向控制等问题进行了较深入的研究。
Knowledge representation is important to tracking and data relay satellite(TDRS)scheduling.
知识表示在中继卫星调度问题研究中占有重要地位。
The problem of H_∞ loop shaping attitude stabilization control for Tracking and Data Relay Satellite(TDRS) is investigated.
主要研究中继卫星H∞回路成形姿态稳定控制问题。
This paper mainly studies yaw angle estimation and attitude control of Tracking and Data Relay Satellite(TDRS).
本文主要研究了中继卫星的偏航角估计和姿态控制问题。
Design of the Complex Control System of TDRS;
中继卫星复合控制系统设计
On the tracking strategies and space geometrical relationship between a TDRS and user satellites;
中继卫星与用户星双向跟踪关系及策略
Tracking and Data Relay Satellite System (TDRSS) is one of the hot spots in aerospace engineering recently.
首先根据中继卫星系统中中继卫星跟踪用户星的要求,定义了中继卫星天线坐标系,推导出了中继卫星天线对用户星的跟踪规律,通过该跟踪规律可以推出中继卫星跟踪用户星时天线方位和俯仰轴转角,为了保证中继卫星与用户星之间的通信,中继卫星单址天线需要精确的指向用户星;然后详细描述了天线指向控制概念,并且设计了星上自主控制方案,星上自主控制方案由捕获和自动跟踪模式组成,一方面设计了天线捕获过程,另一方面对自动跟踪模式的天线步进逻辑进行了合理选择;最后根据推导的跟踪规律,以不同轨道的用户星作为跟踪目标,对所设计的天线指向控制系统进行了数学仿真,并且通过对仿真结果的分析验证了中继卫星单址天线指向性能。
Some satellite relay stations relay radio waves to the earth but they receive the waves not from the earth, but from other space.
某些卫星中继站向地球转播无线电波,但它们不是从地球而是从外层太空接收无线电波。
Generally, Satellite relay stations receive electromagnetic waves from one part of the Earth and then transmit them to another part of the Earth.
卫星中继站通常从地球的一个地区接收无线电波,然后再把它们传送到另一个地区去。
tracking and data relay satellite
跟踪和数据中继卫星
orbiting data relay satellite system
轨道数据中继卫星系统
Scientists have set up two kinds of relay stations. One kind is on the earth, the other is a satellite placed in space around the earth.
科学家们已建立了两种中继站,一种在地球上,而另一种是放在地球周围太空中的卫星上。
tracking and data relay satellite system
跟踪和数据中继卫星系统
Research on the Orbit Determination Style of TDRS and Precision Analysis;
中继卫星的定轨方式研究与精度分析
Allocation Strategy of Relay Satellite ISL's Antenna Resources
中继卫星星间链路的天线资源分配策略研究
General specification of satellite communication centre statio
GB/T16952-1997卫星通信中央站通用技术条件
Inaddition, theconstruction for the Beijing terminal station of China Satcom's satellite broadband service has been finished.
另外,中国卫通卫星宽带业务北京关口站已竣工。
buoy repeater statio
浮标中继站中继站浮标
Research and Simulation on 2~(nd) Generation Ctdrs Capture and Tracking;
二代中继卫星系统捕获跟踪技术研究与仿真
Research of Long Code Synchronous Technology in TDRSS;
跟踪与数据中继卫星系统长码同步技术的研究
Research on Relay Satellite Scheduling Problem with CSP;
基于约束满足问题的中继卫星调度问题研究
Research on Tracking and Date Relay Satellite System Simulation Based on UML
基于UML的跟踪与数据中继卫星系统仿真研究
INTELSAT-type commercial satellite earth station
国际电信卫星型商用卫星地球站
Application of Satellite Communication in Remote Centralized Control of Cascade Hydropower Stations
卫星通信在梯级水电站远程集中监控中的应用
The orbiter will continue to explore Saturn and its moons for four more year.
人造卫星会在后四年继续探索土星及它的卫星。
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