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Research and Design of the Advaned Orbiting Demonstration System’s Receiving End

Author: WuYingSong
Tutor: LiJian
School: Inner Mongolia University of Technology
Course: Applied Computer Technology
Keywords: AOS CCSDS GT2000 Draco
CLC: V443.1
Type: Master's thesis
Year: 2009
Downloads: 50
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Abstract


The Advanced Orbiting System (AOS) is a Communication system standard that proposed by the Consultative Committee for Space Data Systems (CCSDS) in order to meet the needs of manned spacecraft and space station etc. it has been adopted by devoloped countrise.The successful launch of "Shenzhou" staffed spacecraft and return to the world has aroused world attention, which indicates that China is entering the world of aerospace technology in the ranks of great powers. To promote AOS technology and extensive participation in international exchanges and cooperation is of great significance for our country’s space technology development.The paper discusses the research and application of Advanced Orbiting System, analysis deeply CCSDS serise of standard, and discussed in detail the hierarchical model of AOS, the main service types, data formats and data processing;the design determined the functional structure and the program realization of the Verification system. The development completed separately run on Linux and Windows environment advanced concept technology demonstration system receiving end channel shunt and functional modules and so on each AOS service link controller,and realize VCF Service,VCA Service,Packet Service,Bitstream Service and etc.The paper elaborated various services link controller and the channel splitter software’s design and development mentality, the method and process in detail. The link controller uses socket and the multi-thread programming technology in Windows XP and Visual C + + environment to develop and run.Demultiplexer channel in Linux and the GCC compiler development environment, running on the development board of Draco.Paper also introduced China’s independent intellectual property rights in high-performance embedded microprocessors, "Arca GT2000" the development of on-board embedded Linux operating system and ArcaBoot to build a platform to develop specific methods and processes, and as a channel demultiplexer interface running on the bottom above the platform "PCI bus synchronization and channel coding sublayer of data to send and receive cards" Linux driver for design improvements.

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CLC: > Aviation, aerospace > Aerospace ( Astronauts ) > Space instrument,spacecraft devices,spacecraft guidance and control > Electronic equipment > Space communications
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