研究卫星 meaning in Chinese
central european satellite for advanced research
Examples
- High latitude research satellite
高纬度研究卫星 - This thesis introduces the design and implementation of a planning and scheduling system for satellite ' s payloads
本文主要研究卫星有效载荷的规划与调度问题。 - Chapter studies attitude determination problem by multi - antenna . the coordinate system and ad - algorithm is introduced firstly
第三章研究卫星导航系统中多天线姿态确定问题。 - It contributes to the deeper comprehesion of these probability distributions , affords more detailed theoretical basis for further studying and simulating satellite mobile channels , ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime , some discussions on the work of model simulations are also given , ? incorrect derivation of the equality between c . loo model and corazza model in some other papers is pointed out . via the conception of received power , we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings . therefore , it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling , in order to enhance the efficiency and accuracy of research work , ? detailed processes of simulating lutz model by using matlab6 . 0 _ simulink4 . 0 and the results of comparisions are given
本文包含有以下的主要内容： ?对卫星移动通信信道传播特性研究中常用的三个概率分布给出了详细的推导过程；以便对这几个在卫星移动通信信道传播特性的研究中常用的概率分布函数有更深的理解，对进一步研究卫星移动通信信道传播特性和对信道的建模提供了更为详尽的理论基础； ?对卫星移动通信信道传播特性的研究中常用的信道模型进行了理论上的分析和讨论，并对卫星移动通信信道建模的研究工作提出了一定的看法； ?指出了以前的文献中关于c . loo模型和corazza模型的等同性的证明错误；并从接收信号功率的角度出发，通过理论推导及仿真曲线拟合重新证明了在乡村环境下，这两个模型的确是具有等同性的；从而在对乡村环境下的卫星移动通信信道传播特性进行研究时，可以只采用corazza模型来对实际的信道进行建模，这样可以避免重复的建模工作并提高研究工作的效率和准确性； ?给出了lutz模型在matlab6 . 0 _ simulink4 . 0环境下的软件仿真实现的详细过程和整体仿真测试的对比结果，保证了该模型在硬件实现时的可靠性和可行性，从而可以将它们应用于指导模型的硬件仿真实现并可以降低硬件实现时的风险。 - Attitude detemination and control system of a satellite contains two parts , one is the attitude detemination system and the other is the attitude control system . detemination of attitude is the search about attitude arientation on a benchmark . control of attitude is the access of direction on the predefine way . this paper only refer the system of attitude control for lace of space . if there is no special explain , the control system refered in this paper does ’ t contain attitude detemination system
卫星的姿态控制系统包括姿态的确定和姿态的控制两部分,姿态的确定是研究卫星相对于某个基准的姿态定位,而姿态控制是指卫星在某个规定或预先确定的方向上定向的过程。本文限于篇幅,仅对姿态的控制部分进行了分析,如果没有特殊说明,文中所说的姿态控制系统均不包括姿态的确定部分。