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���λ�, ����ʤ, �غ���, ����*
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Preliminary orbit determination method of HEO satellite using a single navigation GPS satellite measurements
Li Taohu, Liu Jiansheng, Qin Honglei, Li Rui*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ HEO(Highly Elliptical Orbit)���������������GPS(Global Positioning System)���������������ٵ���Ҫ����֮һ���ǽ���ڵ��ŵ������������µij���ȷ������.�������Ϸ��������õ��ŵ������ǵĹ۲���ȷ��HEO���ǹ����ֵ���������������,ָ��������F.G����������ֵ���ڵ�����,�����һ�ֻ��ڹ������Լ���ĵ����������㷨,���㷨���踴�ӵ���ѧ����,������F.G�������ö̻����϶�����ʱϵ�������ȿ���Ӱ��.����������,���������������������Χ��ȡֵʱ,�ڿ��ǹ���������������,��ֵ��λ��ƫ����104 m����,�ٶ�ƫ����100 m/s����,�ܹ����ݵ��ŵ������ǵĶ̻��۲�ֵ�ɿ�����ɹ����ֵ��ȷ��.
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�ؼ����� HEO   ����ȷ��   ��������   GPS     
Abstract�� The autonomous navigation of highly elliptical orbit (HEO) satellites using GPS needed to solve a key problem of the preliminary orbit determination under the condition of only one navigation satellite. The feasibility by using the pseudo-range received from a single navigation satellite was demonstrated, and the limitation of the F.G method for preliminary orbit determination was figured out. An iterative batch method using orbit elements as constrains was proposed to determine the preliminary orbit. This algorithm did not have complex mathematic operation and could avoid the influence of ill-conditioned equation with short arc data by using F.G method. The simulation results show that its positioning bias is about 104 m and velocity bias is approximate 100 m/s with an acceptable orbit injection errors, and the proposed method using a single navigation satellite measurements could determine the HEO initial orbit credibly.
Keywords�� highly elliptical orbit   preliminary orbit determination   autonomous orbit determination   global positioning system     
Received 2011-04-02;
���λ�, ����ʤ, �غ���, ����.���ǵ���HEO���dz���ȷ���㷨[J]  �������պ����ѧѧ��, 2012,V38(6): 755-759,765
Li Taohu, Liu Jiansheng, Qin Honglei, Li Rui.Preliminary orbit determination method of HEO satellite using a single navigation GPS satellite measurements[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(6): 755-759,765
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2012/V38/I6/755
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