Abstract
The double axis Digital Sun Sensor (DSS), product of Beijing Institute of Control Engineering (BICE), is widely used in spacecraft in China. The open flag current of DSS is one of telemetry to provide the information about sunlight intensity. Every axis has telemetry of open flag current called ‘X axis open flag current’ or ‘Z axis open flag current’. Based on the in orbit data of project SJ-6 which launched in 2008, the damping tendency of the open flag current of DSS is analyzed in order to find how the performance of photoelectric cell unit will be changed by sun radiation in long term on board working. According to the analysis, during 6 years worked in orbit, X axis has attenuated about 13.7%, and Z axis 16.0%.
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Reference
Mo, Y., Zhao, Y., Liu, X.: The signal processing technique for integrative encoded sun sensor. Aerosp. Control. Appl. 41(4), 36–39 (2015)
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Li, Y., Zhao, Y. (2019). The On Board Data Analysis About the Open Flag Current of Digital Sun Sensor. In: Sun, S. (eds) Signal and Information Processing, Networking and Computers. ICSINC 2018. Lecture Notes in Electrical Engineering, vol 494. Springer, Singapore. https://doi.org/10.1007/978-981-13-1733-0_19
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DOI: https://doi.org/10.1007/978-981-13-1733-0_19
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