Research and Systematic Design on Satellite Integrated Data Management Technology

There are various different kinds of on-board satellite data (called 'satellite integrated data'), such as telemetry, telecommand, diagnosis knowledge, etc. Because some of the data (such as telemetry) is very large and most of these data is needed to be inquired in near real time, a stronger management strategy is needed to deal with the data. This paper researched the key techniques about satellite integrated data management, proposed a method to classify satellite integrated data. For telemetry, a compress algorithm is given using its slowly changed characteristic and an eigenvalues extraction algorithm is used for drawing the telemetry curve graph when users search the telemetry. For on-board state information data (such as telecommand, diagnosis knowledge, etc), a data type description method is given to manage it. Based on these researches, a satellite integrated database system is designed and implemented, the system manage the satellite integrated data well in practice.