卫星系统

The research on the CCD sensor information is used to determinate the satellite attitude system without gyroscope .(1) Using quaternion and MRP as attitude representation , the attitude kinematics function are established . The satellite attitude dynamics function is established,that is disturbed by the first-order Markov force moment.(2) Using the quaternion as attitude representations, the attitude determination state estimator EKF and UKF are designed , numerical simulation is done .

基于CCD星敏感器的无陀螺测量卫星姿态确定系统的研究(1)针对地球同步轨道卫星，分别建立了以姿态四元数和修正罗德里格参数为卫星姿态描述参数的姿态运动方程；建立了卫星受一阶马尔柯夫干扰力矩时的卫星姿态动力学方程；(2)设计了采用姿态四元数为卫星姿态描述参数的EKF和UKF估计器，设计了分别以姿态四元数和修正罗德里格参数为卫星姿态描述参数的UKF估计器，并进行了数学仿真。

The CDAS realtime telemetry and attitude determination system of meteorological satellite FY2 is a system of multifunction long life time and high reliability ,based on multiprocessor concurrent processing and multilevel faulttolerant architecture.It implements integrally realtime processing of analog telemetry including demodulation of accurate sun pulse,realtime determination of satellite's attitude,coding telemetry demodulation and realtime data processing,satelliteground loop simulation test,a...

介绍了风云二号卫星指令与数据获取站实时遥测定姿系统，该系统是一个采用多级容错、多处理器并发运行体系结构，统一实现包括精太阳脉冲解调在内的模拟遥测信号实时处理、卫星姿态实时确定、编码遥测信号解调和数据实时处理、卫星星－地回路仿真测试及系统大容量数据、图形、字符实时处理、通信、记录等多功能、长寿命、高可靠实时遥测定姿系统。

Propellant tank and high pressure vessel are important component of satellite prolusion system .

1引言卫星用推进剂贮箱和高压气瓶是卫星推进系统的一个重要部件，对卫星推进系统的性能，可靠性和具有举足轻重的影响。

Based on the work by the forerunners, this paper do some investigation about various kinds of data transmission format, for example, CBERS-1-02B CCD double channel data transmission, WFI and IRMSS, SPOT-2/4 single channel multiple work modes, LandSat 5 TM multi frame structure, HJ-1A/B single channel multiple sensor and so on, make some conclusion about the common parts of transimission foramt of different sensors, which meet the requirement of easy production, extraction and transmission, at the same time, the author made the quick view data format which is fit for multiple satellites and sensors.

作者在总结前人研究工作的基础上，结合国家对航天对地观测地面系统一体化和数据标准化的要求，针对光学、红外、高光谱等传感器卫星原始数据格式，如：CBERS-1-02 卫星的CCD、WFI与CBERS-1的IRMSS多通道多传感器数据传输格式的特点；SPOT 2/4的单通道多工作模式数据的特点；LandSat5卫星TM复帧数据结构数据的特点；针对HJ-1A/B卫星单通道多传感器数据传输格式的特点等原始数据格式进行了详细分析，总结不同传感器数据格式的共性部分，满足数据格式便于生成、解析和传输的特点，研究制定了适用于多种卫星、多种传感器的快视数据格式。

According to the Stereometry Mapping Micro Satellite research of Harbin Institute of Technology, a systematic and deep study on fine attitude determination and control technique is made in this dissertation, which is funded by the National 863 Aerospace Advanced Technology Plan (863-2-5-1-8) and the National"211" Education Program.

本学位论文结合国家"863"航天高技术计划的"微小卫星一体化系统总体技术"（863-2-5-1-8）预研课题，以哈尔滨工业大学立体测绘微小卫星的研制项目为背景，同时得到国家"211"重点学科建设计划的资助，对现代小卫星姿态控制系统设计中高精度姿态确定与控制技术进行系统而深入的研究。

Based on the spaceflight technology innovation program of"Research on the Testing Method of Reliability----Research on the Fault Diagnostic Expert System and Neural Network"and the Pre-Research Defense Projects of"Research on longevous service and high reliability of Satellites"of the National tenth-five-year plan, taking attitude control system of a satellite as object, the theories and the applications of the neural networks and expert system in the fault diagnosis are studied in this dissertation.

本文以航天技术创新基金项目&可靠性试验方法研究——故障诊断的专家系统神经网络技术研究&和国家武器装备&十五&预研项目&卫星长寿命高可靠性技术&为背景，以卫星姿态控制系统为研究对象，在理论和实践两个方面对神经网络和专家系统相结合的故障诊断技术及其在卫星中的应用进行了研究。

This paper emphases on the construction of urban CORS and introduces the structure and operation of CORS by taking Shenzhen's continuous operational reference system as the example.

着重论述了城市连续运行卫星定位服务系统的构成模式，并以我国第一个实用CORS系统———深圳连续运行卫星定位服务系统为例，介绍了系统的构成和在CORS系统下的作业情况

The POAS with high availability, high performance and scalability features makes the data output of MSDPS more effective and reliable. The QVS is cross-platform, highly scalable and loosely coupled with a high degree of automation and handsome and simple human-computer interface.

本文设计并完成的遥感卫星数据产品输出系统大幅度提高了卫星数据产品输出的自动化程度，提高了生产效率与可靠程度，系统具有高可扩展性；产品常规质量检验系统具有跨平台、高可扩展性、与遥感卫星数据产品输出系统松耦合等特点，自动化程度高，人机交互界面美观简洁。

The harbor monitor system in the dissertation can be seen as a vessel transport management system employing comprehensively Galileo Satellite Position technology,ECDIS and modern satellite communication technology.

本论文所提出的港口船舶航行监管系统基于欧洲Galileo卫星定位系统，综合利用Galileo卫星定位技术、电子海图技术、以及现代卫星通信技术的系统。

When a malfunction of the satellite occurs, the teleoperator uses a space mouse and a data-glove with force feedback to control the arm/hand system fixed on the satellite body to remove the malfunction to implement the satellite self-serving.

远端由安装在卫星本体上的一个四自由度机器人和灵巧手的臂／手系统组成，当卫星出现故障时，遥操作者通过空间鼠标和力反馈数据手套分别控制远端的臂／手系统排除卫星故障，实现卫星的自我维护。

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。