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The Research and Design of the Advanced Orbiting System’ Sending End

Author: ZhangLiFeng
Tutor: LiJian
School: Inner Mongolia University of Technology
Course: Applied Computer Technology
Keywords: Advanced rail system Link Controller Channel Combiner GT2000
CLC: V446
Type: Master's thesis
Year: 2009
Downloads: 59
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Abstract


Advanced rail system (AOS) is an advanced spatial data communication systems institutional standards of the Advisory Committee of Space Data Systems (CCSDS) proposed spacecraft for manned spacecraft and space station complex task - oriented , well positioned to meet the spacecraft is empty - or empty - empty of measurement and control and communications data and payload data processing and management , has gradually aerospace technology developed countries adopted . This paper discusses the research and application of AOS standards at home and abroad , based on in-depth analysis of the AOS relevant CCSDS standard recommendations , a detailed discussion of the characteristics of the AOS , the hierarchical model , type of business , the data unit format and data processing rules ; design intended functional structure and implementation of the the AOS demonstration system , designed to complete the sending end of the channel combiner and each business function modules link controller respectively demonstration system runs on Linux and Windows environments , virtual channel access (VCA), the demonstration of the packaging bag, and the bit stream AOS business data transmission processing function . Channel combiner to run our own intellectual property rights of high-performance embedded microprocessor Ark GT2000 \the upper layer interface to receive and link controller or business users through the Ethernet port as virtual channel data . Paper, a detailed exposition of cutting custom kernel and root file system , Draco development board embedded Linux operating system and achieve self- loaded drive program and application procedures , as well as virtual channel data combiner and scheduling channel co- MUX software 's design thinking and process also introduced a \Link controller with Socket and multi- threading technology to develop and run in Visual C environment , the the typical packet bit stream , packaging and VCA AOS business data processing . The paper describes the the business link controller design and development of ideas , methods and process , to write a the sender business simulation test program to generate a variety of the AOS business data for software to simulate debugging and testing .

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CLC: > Aviation, aerospace > Aerospace ( Astronauts ) > Space instrument,spacecraft devices,spacecraft guidance and control > Computing device
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