First , the structure of the second generation ctdrs isl was discussed in this paper , the characteristic of coverage in the second generation ctdrs by the characteristic of orbit and the simulation model of isl was analyzed then the effect of the isl establishing process analyzed . second , the discussing and analyzing focus on the characteristic of signal during the establishing isl process , establishing the orbit model , the technology of doppler frequency shift capturing and tracking sequence and the effect of background noise , then the theory analyzing the parameters we have just mentioned , and this will support the reference for the implement of project . the simulation and test of the isl of ctdrs and analyzing from theoretical basis to implement of simulation were mainly focused in this paper 其中讨论了二代中继星捕获跟踪系统星间链路的仿真方案的组成结构,利用轨道特性对二代中继卫星系统的覆盖特性进行分析,搭建了星间链路的仿真模型,其中包括中继卫星和用户卫星在内的轨道模型、星间链路模型、用户星信号调制模型等,并对星间链路建立过程的影响进行分析;重点针对星间链路建立过程的信号特性,轨道模块的建立、多普勒频移技术、背景噪声影响、载波的捕获与跟踪技术等进行了实际参数的设计与理论分析。
Based on chinese tracking and data relay satellite ( ctdrs ) in the future , the antenna pointing control and complex control theory of user satellite are studied deeply in this dissertation , which is funded by the improve item of dept . of astronautic engineering and mechanics ? “ the teaching demonstration of antenna pointing control system in tdrss ” . the main contents of this dissertation are consisted of the following parts : firstly , dynamics equation is derived using lagrange equation for user satellite , so as the kinetics equations of user satellite at the same time are expressed in the form with matrix differential equations that is suitable for attitude control system design and analysis 本学位论文结合航空宇航科学与技术学科研究生教学基地实验室建设项目“中继系统星间链路天线指向控制系统教学与演示实验” ,以我国跟踪与数据中继卫星系统为背景,对某型号用户星星间链路天线指向跟踪控制和复合控制理论进行深入的研究,研究内容主要包括以下几个方面: 1 .利用lagrange方程建立了用户星的动力学方程,同时推导了运动学方程,并将这组动力学方程以矩阵微分方程形式表示,使之适用于姿态控制系统的设计和分析。
This paper presents the results of studies on collectivity scheme and some key technologies about the network - based navigation system which is composed by existing stations ( e . g . radio beacon ) , unmanned air vehicles ( e . g . relay uav ) , other air - tactical serving vehicles and data relay satellites 本文研究了利用地面现有台站(如无线电信标台)和移动站(如移动指挥车辆) 、空中无人机平台(如中继无人机)和其他空中战术服务平台、以及数据中继卫星等构成的网络化导航系统的总体方案和相关技术。
According to the technical requirements of data relay satellite system , we determine to exploit and analyze the oscillation amplitude comparison mono - pulse mode in a single channel mono - pulse , angular tracking manner in comparisons among several angular tracking modes e . g . cone scanning , step tracking , phase comparison mono - pulse and oscillation amplitude comparison mono - pulse 根据数据中继卫星系统技术指标与技术要求,通过比较圆锥扫描、步进跟踪、相位比较单脉冲与振幅比较单脉冲等跟踪方式的优、缺点,确定采用振幅比较单脉冲方式中的单信道单脉冲角跟踪方式,并对此跟踪方式进行了详细的研究。
The project ‘ simulation and test of the second generation ctdrs ’ was taken as the scientific research background in this paper , and the background and purpose of this project were taken as the leading line , the subject research present situation in the domestic and foreign were elaborated , the characteristic and advantages of isl ( inter - satellite link ) simulation design adopting stk ( satellite tool kits ) software , then the simulation results supported by matlab and stk were analyzed 本文以我国第二代中继卫星捕获跟踪( ctdrs )系统的预研项目“二代中继星捕获跟踪系统仿真及验证”为科研背景,以课题的研究背景与意义为主线,论述了课题在国内外的研究现状以及采用stk ( satellitetoolkit )完成星间链路仿真设计的特点与优势,并对stk和matlab的仿真结果进行了一定的分析。
中继: relay; repeating; relaying; ...卫星: satellite bit; particle实时中继卫星: real time repeater satellite数据中继卫星: data-relay satellite; drs data relay satellite同步中继卫星: srs synchronous relay satellite; synchronous relay satellite延迟中继卫星: delayed repeater satellite有源中继卫星: active repeater satellite中继卫星系统: relay satellite system区域型中继卫星: zone type trunk satellite数据中继卫星系统: drss data relay satellite system数据追踪中继卫星: tracking data relay satellite无线电中继卫星: radio relay satellite延迟式中继卫星: delayed repeater satellite延迟型中继卫星: delayed repeater satellite中继卫星通信系统: communications relay satellite system跟踪和数据中继卫星: tracking and data relay satellite跟踪和数据中继卫星系统: tracking and data relay satellite system (tdrss)跟踪与数据中继卫星: tracking and data relay satellite跟踪与数据中继卫星系统: tdrss tracking and data relay satellite system跟踪域数据中继卫星: tdrs tracking and data relay satellite轨道数据中继卫星系统: orbiting data relay satellite system轨道资料中继卫星系统: orbiting data relay satellite system,odrss环形数据中继卫星系统: odrss orbiting data relay satellite system军事战略战术中继卫星: milstar延时转发器卫星,延迟中继卫星: drs delayed repeater satellite