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Research on High Speed Satellite CCSDS Data Processing Using Software Method
Author: WangSen
Tutor: ZhaoZuo
School: Beijing University of Aeronautics and Astronautics
Course: Information and Communication Engineering
Keywords: Data Management Distributed Systems Parallel computing Thread Synchronization
CLC: V557
Type: Master's thesis
Year: 2010
Downloads: 145
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Abstract
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The data management subsystem is an important subsystem of the spacecraft . This project comes from the number of tube testing system , ground testing of the system to complete a number of pipe systems , it is an important guarantee for subsystems development and testing conditions , tube subsystems developed success have a decisive impact on the number of the entire ship . The number of tube test system in a large number of important telemetry data transmission in accordance with CCSDS format , the system needs to resolve CCSDS data streams to extract the corresponding parameters . The rate of the the CCSDS data stream processing on a single computer can not use the original number of tube software real-time parsing the data stream . This paper studies the structural features of the issues need to be addressed in the CCSDS data , drawing on a distributed system architecture , combined with parallel computing techniques , a distributed the CCSDS data processing methods . The original stand - alone process dispersed to multiple computers , while taking advantage of the computing power of multiple computers for data processing . On the architecture , the system uses a distributed three-tier analytic structure : shunt shunt layer data parsing layer parse the data , application logic layer analytical results are applied to the testing process . The hardware platform of the system running the ordinary dual-core PC, the operating system is Windows system layers of software with VC achieve article describes the implementation details . Parallel computing technology and dual-core platform is used to optimize the software , in order to maximize the use of dual-core performance . Distributed analysis system software testing center existing computer and network platform for implementation, the analytic method relative to pure hardware , reducing the cost . Finally, the distributed processing system performance testing , test results for comparison with the original number of tube software than the results show that the processing speed of the system data to be greatly improved .
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CLC: > Aviation, aerospace > Aerospace ( Astronauts ) > Ground equipment, test site, launch sites, space base > Data processing
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