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���ܲ�, ������, Ѧ��, �����*
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Design and implementation of GPS ground-based regional integrity monitoring system for China civil aviation
Zhu Yanbo, Zhang Xiaolin, Xue Rui, Zhang Miaoyan*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ ����й�����Ϳ��н�ͨ�����ֲ����ص�,������й���ȫ�����Ƕ�λϵͳGPS(Global Positioning System)�ػ���������Լ���ϵͳGRIMS(Ground-based Regional Integrity Monitoring System)�ĸ���.һ������7�����վ�ĵ�����������ӽ��ڵ�GPS����,�ж������״��,�����жϽ������Ҫ�ļ�����ݷ��͵�����վ.����վ�����й���Χ�ڵĽ��ջ���������Լ��RAIM(Receiver Autonomous Integrity Monitoring)�ն�,ͬʱ����ȫ���񺽷ɻ���ʵʱλ��,��������λ��RAIM�ն��еķɻ���ʱ��������Ը澯��Ϣ.�����dz��ֹ��ϵ��ɻ��յ��澯��Ϣ֮��ĸ澯�ӳ�С��7��s.��ϵͳ�Ѿ�Ӧ�����й���,�ڱ�֤���а�ȫ��ͬʱ����˷���Ч��.
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Abstract�� A GPS(global positioning system) GRIMS(ground-based regional integrity monitoring system) was established by considering the particularities of Chinese terrain and the distribution of air traffic flow. A ground-based monitoring network composed of 7 monitoring stations gathered data of all GPS satellites in view and made primitive judgments of GPS satellites′ health from all the data gathered. The judgments and important original data were then sent to master station. All RAIM(receiver autonomous integrity monitoring) holes in Chinese airspace, as well as positions of all airplanes of Chinese airlines, were calculated in master station. All airplanes that were considered to be in any RAIM hole would receive a notification message. The time limitation of the whole process from gathering monitoring data to the notification be received was 7��s. GRIMS is used in China civil aviation and improvs both safety and efficiency.
Keywords�� satellite navigation aids   fault location   global positioning system     
Received 2005-08-18;
About author: ���ܲ�(1970-),��,�㽭��ɽ��,��ʿ��, zyb@adcc.com.cn.
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���ܲ�, ������, Ѧ��, �����.��GPS�ػ���������Լ���ϵͳ�����ʵ��[J]  �������պ����ѧѧ��, 2006,V32(07): 797-801
Zhu Yanbo, Zhang Xiaolin, Xue Rui, Zhang Miaoyan.Design and implementation of GPS ground-based regional integrity monitoring system for China civil aviation[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(07): 797-801
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