中国空间科学技术

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Research on 3D Attitude Determination System Based on GPS

Zheng Qinghui (College of Aerospace and Material Engineering, National University of Defense Technology Changsha 410073) Zhang Yulin Zeng Guoqiang Liu Youming (College of Arming and Commanding Technic,Beijing 101416 )   

  • Published:2003-08-25

Abstract: A 3D attitude determination system is established. Theory and algorithm of attitude determination based GPS are addressed in this paper. Least square adjustment is used to calibrate baseline, then get baseline length and angle between two baselines, which can be used as a restriction to accelerate ambiguity resolution. Vector of baseline is estimated to get coarse attitude, ultimately, the precise attitude is estimated by iterative least square adjustment. All the discussed above are validated by attitude determination system.