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Journal Article

Citation

Zhu Y, Zhang X, Xue R, Zhang M. Beijing Hangkong Hangtian Daxue Xuebao 2006; 32(7): 797-801.

Affiliation

School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Copyright

(Copyright © 2006, Beijing hang kong hang tian da xue xue bao bian ji bu)

DOI

unavailable

PMID

unavailable

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 improves both safety and efficiency.

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