Ground-based Navigation Technology Research Satisfied With RNAV Performance

PBN is the future of current development of civil aviation. The implementation of PBN can increase airspace capacity, reduce flight delays and ensure flight safety. In order to meet higher requirements of RNAV in future time, ground-based navigation system, as the current main navigation system, must have some breakthroughs in the navigation capabilities, positioning accuracy etc. Researching on ground-based navigation technique satisfied with RNAV is highly significant for PBN application and development.In this paper, with flight safety as the main line and RNAV as the guide, research on ground-based navigation technique satisfied with RNAV was done in two ways: en route and airborne.Focusing on the characters of ground-based navigation system, navigation performance of en route was analyzed with a background of VOR / DME and DME / DME. The research on navigation tolerance and coverage will provide a theoretical basis for optimizing the distribution of navigation facility in RNAV-2. The performance of airborne navigation system is the key to the implementation of RNAV. Based on the FMS of civil aviation aircraft, the author analyses the positioning error of the ground-based system and the influencing fact of positioning error. Using actual flight data, a RNAV simulation platform was built in this paper in order to provide a support for optimizing the distribution of navigation facility.Based on the development trend of PBN in our country, this paper performed simulation satisfied with requirement of RNAV using route Beijing-Shanghai and actual flight data as background. The results show that: In the current layout, the performance of the airborne navigation system can satisfy with RNAV-5; RNAV-2 could be performed in this route by the method of optimizing the facility's distribution.