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《Electronic Test》 2008-04
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Research of effective technology of space telemetry data transmission

Liu Wenyi Liang Erhu Zhang Wendong National Key Laboratory For Electronic Measurement Technology, North University of China,Taiyuan 030051,China  
This paper introduces the characteristics of the telemetry system,and explains the need of using data compression in the telemetry system.From the choice of compression algo- rithms and hardware design showed that the data compression work with the basic theory,and in order to achieve what will happen in the space of telemetry data transmission,using an effec- tive method.It includs telemetry data channel transmission model,and how to apply data pack- et transmission technology inhibitory effect of the proliferation of error and data loss lock.Fur- thermore,in order to design a reliable transmission of all data systems,it will make a deep a- nalysis to the blockage of the channel short-term caused by inefficient compression.Thrugh the combination of hardware and software processing,it can reduce the adverse consequences caused by such cases in greatest extent.
【CateGory Index】: TP873
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