Volume 37 Issue 4
Apr.  2012
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HE Yufan, WANG Jiasong, LI Yuanping, CHEN Jianrong. Technique and Application of Space-based TT&C for LEOs Based on Compass-1 System[J]. Geomatics and Information Science of Wuhan University, 2012, 37(4): 441-444.
Citation: HE Yufan, WANG Jiasong, LI Yuanping, CHEN Jianrong. Technique and Application of Space-based TT&C for LEOs Based on Compass-1 System[J]. Geomatics and Information Science of Wuhan University, 2012, 37(4): 441-444.
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Technique and Application of Space-based TT&C for LEOs Based on Compass-1 System

  • 1 State Key Laboratory of Astronautic Dynamics,462 East Xianning Road,Xi'an 710043,China;2 Xi'an Satellite Control Centre,11 South Gongyuan Road,Xi'an 710043,China

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  • Received Date: January 19, 2012
  • Published Date: April 04, 2012
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  • This paper proposes a method of using Compass-1's short message transmission function to support space-based TT&C technology,using its time service function to support space-ground time difference measurement technology,and using its positioning function to support orbit determination technology for LEOs.Currently,YG-9,the first satellite carrying a Compass-1 user receiver,has validated the key technologies of space-based TT&C.The test on YG-9 has shown that the space-based TT&C functions well,the precision of space-ground time difference measurement can satisfy the requirements of onboard computer,and the orbit accuracy of YG-9 can achieve 1m in semi-major axes with only the four-way ranging data between YG-9 and Compass-1.Finally,this paper analyzes the application foreground of Compass-1 space-based TT&C technology.
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