某卫星Ka频段高速数据传输系统仿真与设计

发布时间：2018-03-30 02:39

本文选题：Ka频段　切入点：高速数据传输　出处：《上海交通大学》2014年硕士论文

【摘要】：随着对地遥感观测卫星应用需求提高,不但对地球表面进行高分辨率成像,并且能够穿透植被发现隐蔽的地下目标,获取丰富的陆地及海洋地理信息和军事情报。为实现遥感卫星高分辨、宽视场和多途径的成像能力,载荷提出了6000~11000Mbps的数据率需求,而目前X频段星载数据传输系统1000Mbps的传输能力已无法满足上述需求,因此有必要设计高频段的高速数据传输系统。准确分析空间传输因素、合理规划链路能量资源和全面分析数据传输应用是保证数据高效准确传输的重点。本文根据理论分析,对高速数据传输的空间因素和设备因素进行论证,通过建模仿真,重点对Ka频段星地信道品质进行系统性评估,为星地空间链路各环节的设计提供依据;根据卫星轨道特点,对数据传输应用进行综合分析,提出适用于某卫星Ka频段高速数据传输系统的传输应用方案;依据工程可实现性,完成某卫星Ka频段高速数据传输系统的总体方案设计,为某系列卫星系统的研发奠定基础。
[Abstract]:With the increasing demand for Earth remote sensing observation satellite applications, not only high resolution imaging of the Earth's surface has been carried out, but also hidden underground targets can be discovered through vegetation. In order to achieve the high resolution, wide field of view and multi-channel imaging capability of remote sensing satellite, the data rate requirement of 6000~11000Mbps is put forward in order to obtain abundant land and marine geographic information and military information. At present, the transmission capacity of 1000Mbps in X-band spaceborne data transmission system can not meet the above requirements, so it is necessary to design a high-speed data transmission system in high frequency band. Reasonable planning of link energy resources and comprehensive analysis of data transmission applications are the key points to ensure efficient and accurate data transmission. According to theoretical analysis, the spatial and equipment factors of high-speed data transmission are demonstrated in this paper. The systematic evaluation of satellite to ground channel quality in Ka band is emphasized to provide the basis for the design of each link of satellite and ground space link. According to the characteristics of satellite orbit, the application of data transmission is analyzed synthetically. This paper presents an application scheme for a Ka-band high-speed data transmission system of a satellite, and completes the overall scheme design of a Ka-band high-speed data transmission system based on engineering realizability, which lays a foundation for the research and development of a series of satellite systems.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN927.2

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