在轨卫星

阿莫斯解释说：那些AIS通讯广播可以通过在轨卫星截获。

Those AIS communication broadcasts can be picked up by orbiting satellites , Amos explains .

卫星激光测距（SLR）是利用测量超短激光脉冲在卫星与地面测站间往返飞行时间的方法确定星地距离，对在轨卫星进行精密跟踪的一种技术。

SLR is a most high-accuracy tracking technology to artificial satellite flying in orbit , by measuring the round trip time of a laser pulse between satellite and observatory station .

美国战略指挥部空军中校LesKodlick将军称：“我们认为这是第一次两在轨卫星相撞。”

Air Force Lieutenant Colonel Les Kodlick of the US strategic command , said : " We believe it 's the first time that two satellites have collided in orbit . "

对于中低分辨率卫星遥感图像而言，由于不易获得理想的直线刃边，因此使用传统的直线刃边法检测在轨卫星MTF比较困难。

For the mid-low spatial resolution satellite remote sensing image , it is very difficult to obtain a perfect straight edge object , so how to measure the MTF of the mid-low spatial resolution satellite on orbit is a hard task .

因此，本文提出另外一种设想，建立图像的质量评价参数和光学系统指标MTF的数据关系模型，通过简单易行的计算在轨卫星的图像质量参数，根据已经建立的模型关系，直接推算出MTF。

There are a lot of work to make the technique mature . We suppose an idea that building up a data relation model between image quality assessment parameters and optical system assessment parameter MTF . Through model we can use image quality assessment parameters to get MTF indirectly .

介绍另一种在轨卫星传感器绝对辐射定标&辐照度基法定标，并利用敦煌辐射校正场对FY1C卫星可见近红外通道进行定标。

This paper describes another in flight method for satellite sensor absolute radiometric calibration , named irradiance based method which was used to calibrate the VIR channels of FY 1C with Dunhuang site .

在轨卫星与地面时钟精确同步方法研究

On the Methods to Keep Satellite / Ground Clocks Synchronous Accurately

在轨卫星液体推进剂测量技术评述

Introduction and estimation on measurement methods of liquid propellant applicable to satellites

回顾了在轨卫星液体推进剂测量技术发展概况。

The development of liquid propellant measurement methods applicable to satellites are outlined .

在轨卫星的姿态机动中，经常会希望系统满足某种意义上的最优条件。

In the control of satellite attitude maneuver , we always want the system meets optimal requirement .

研究了在轨卫星姿态控制系统发生可修复性故障状况下的重构容错控制。

This paper investigates the reconfiguration fault-tolerant control method of the on-orbit satellite attitude control system with recovered faults .

运用在轨卫星传回的图像研究遥感器性能变化是对在轨卫星进行动态监测的重要途径，这一领域已成为目前国际上研究的热点。

Measurement MTF of the on-orbit satellite imaging system from the sensing image is a hot research topic in international .

在轨卫星运行仿真平台的研究涉及了卫星轨道力学，计算机仿真和地理信息技术等多学科领域。

The research of simulation platform of satellite in orbit involves some field including dynamics of satellite orbit , computer simulation and geographical information technology .

印度每年花在空间项目上的资金有680亿卢比（合11亿美元），有20颗在轨卫星，执行通讯和遥感等任务。

India spends 68 billion rupees ( $ 1.1 billion ) a year on its space program and has 20 satellites in orbit for communication and remote sensing .

综合运用所研究的关键技术，开发和实现了在轨卫星远程诊断系统各功能模块。

NET technology , the design of system network platform is achieved . 4 . At last , based on the researched key technologies , the functional modules of in-orbit satellite remote diagnostics system is developed and implemented .

本文也给出了调制方式分类识别试验系统与卫星测控通信地面站相结合，对某一在轨卫星侦收识别的结果，验证算法的工程可行性和有效性。

Furthermore , the modulation recognition results of an in-orbit model satellite are given using modulation classification and recognition test system and remote sensing and controlling earth station in Harbin Institute of Technology , which proves the engineering validity of the algorithm .

在局域网范围内以某卫星姿控分系统为例，模拟实现和验证了在轨卫星远程诊断系统的数据远程传输、实时状态监控、故障实时诊断、数据库远程访问、远程交互诊断等功能。

By taking an example of the satellite attitude control subsystem in LAN network , the functions of this remote diagnosis system such as remote data transfer , status monitoring , real-time diagnosis , data access and remote interactive diagnosis are achieved and verified .

在轨纳卫星的主动热控建模及控制策略研究

Modeling and Control Strategy of Active Thermal System for On-orbit Nano-satellite

长期在轨运行卫星的轨道维持技术

Orbit Maintenance for Long Life Satellites

伴随着在轨运行卫星数量的增加，研究人员掌握的遥感数据越来越多。

With the number of satellites in orbit increases , the researchers acquired remote sensing data more and more .

为提高在轨微小卫星的使用效能及生存能力，提出一种微小卫星低可观测外形飞行姿态规划算法。

A flight attitude planning algorithm is developed for low observable micro-satellite shields to enhance the on-orbit satellite 's survivability and operational effectiveness .

面向在轨服务的卫星对接过程建模与仿真分析

Modeling and Simulating Analysis of the On-orbit Servicing Satellites ' Docking Process

在轨地球同步卫星轨道控制参数计算及工程实现

Orbit Control Strategies and Implementation for on-Orbit Geostationary Satellites

中国人已经步入了太空，并证明自己有能力用弹道导弹击落在轨的人造卫星。

China has put a man in space and proved it can shoot down an orbiting satellite with a ballistic missile .

介绍了典型低轨道卫星的军事作用和运作机理，并给出了当前在轨低轨道卫星的技术参数。

Military function and operation mechanism of low earth orbit satellites are introduced , and technical parameters of low earth orbit satellites are provided .

在轨运行的卫星不可避免地受到模型参数不确定性和各种干扰力矩的影响，这些不确定性的存在使挠性卫星大角度姿态机动的控制问题进一步复杂化。

For any on-orbit satellite , it is inevitable to be influenced by some kinds of uncertain parameters and disturbance torques , which makes the attitude control problem further complicated .

结果表明，预测结果精度较高，预测算法能够解决基于在轨数据的卫星关键部件寿命预测问题。论文最后对全文主要工作和创新点进行了总结，对进一步研究内容进行了展望。

The results showed that prediction accuracy is higher , and the prediction algorithm can solve the problem of satellite key components life prediction based on in-orbit data . Finally , concluded the main works and key innovations of the paper , looked ahead the further study contents .

第四章以我国在轨运行的中国卫星X号卫星为例，详尽地介绍了同步通信卫星在定点位置漂移的原因及计算方法。

Article 4 : Look on the " ChinaSat X " as the example , introduced caused reason and calculation mean of GEO communication satellite orbit drift in detailed .

中国DMC小卫星在轨测试技术研究卫星通信有效载荷在轨测试误差分析

A Research on the Technology of On-Orbit Calibration and Validation of China DMC Microsatellite ; Measurement Error Analysis for In-Orbit Test of Satellite Communication Payloads

利用MSCADAMS中用户自定义子程序方法建立卫星姿态控制系统的模型，对卫星附件在轨展开过程进行卫星姿态动力学仿真分析。

This satellite attitude control system model is established by using MSC Adams user subroutine . The simulation analysis of the satellite attitude dynamics during the process of appurtenances deployment in the space is discussed .