• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.43 no.4
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• pp.349-358
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• 2015

The research and development trend of Trajectory-based Operations(TBO), which is considered as a key concept of future Air Traffic Management(ATM), is presented in this paper. The operational concepts of TBO in ASBU(Aviation System Block Upgrade) from ICAO(International Civil Aviation Organization) have been summarized, and the detailed operational concepts and procedures, which can be realized in the near future, are described through the investigations of operational concept development and related research/development activities of TBO in USA and Europe. The technical enablers, which have been identified based on understanding of TBO operational concepts, are introduced, and related research/development status of each technical enabler has been presented.

• Journal of Advanced Navigation Technology
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• v.19 no.3
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• pp.182-191
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• 2015

The automatic dependent surveillance - broadcast (ADS-B) system which is a core system of aviation system block upgrade is designed and implemented. The ADS-B system consists of the 4 blocks and 10 units, and filtering algorithm is applied to the implemented ADS-B system. To evaluate a performance of the implemented ADS-B system, real aircraft position data is used and compared reliable radar data. The comparison results show that average position difference of 99.57 m. In addition, comparisons of aircraft position data between the implemented ADS-B system employing filtering algorithm and the conventional ADS-B system under various situations are carried out, such as aircraft turning, taking off, landing, and cruising. The comparison results show that average position difference of 8.02 m.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.12 no.6
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• pp.44-53
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• 2013

Ongoing SWIM(System Wide Information Management) with the United States and European countries as the center is a part of the ASBU(Aviation System Block Upgrade) program improved performance of aeronautical data system in the International Civil Aviation Organization and a core technology of Integrated Aeronautical Data Management Network to elevate service through digitally aeronautical information management. Therefore, in this paper, we analyze SWIM architecture and network applied the concept of SOA(Service Oriented Architecture), and propose methods of implementation transforming applications operating established legacy aeronautical data system into integrated aeronautical data management network through adapter technology. This will allow development of middleware and application suitable for the next generation infrastructure network environment for efficient ATM(Air Traffic Management)and provide timely required information for users.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.11
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• pp.2668-2676
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• 2013

International Civil Aviation Organization adopted the program to improve performance of aviation-related data systems through the ASBU for 20 years from 2013. Research and development for integrated management network of aeronautical telecommunication data through SWIM(System Wide Information Management) technology which is part of program, are being progressed in the United States and European countries. Therefore, in this paper, we suggest a method of testbed implementation based on technology of aeronautical data services architecture applied the concept of SOA(Service Oriented Architecture), development of future data management model for integrated management of aeronautical data, and development of user-centric integrated aeronautical data management network through adapter technology for interoperating legacy aeronautical data system to develop even technology with development trends of advanced countries.

• Journal of Advanced Navigation Technology
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• v.25 no.6
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• pp.498-509
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• 2021

The wake turbulence at the wingtip of preceding aircraft may affect the normal operation of following aircraft. Aircraft are classified into four categories according to their maximum take-off weight, and horizontal separation is applied with this category matrix. The FAA and EUROCONTROL revealed that the magnitude and effect of preceding aircraft wake turbulence were smaller than the current distance separation minima suggest. This new information presents the opportunity for revising wake turbulence minima into seven categories (RECAT). This paper confirms the feasibility of implementing RECAT at major airports in South Korea using the draft of ICAO Doc. 10122. The paper also calculates the ultimate runway capacity of Incheon International Airport in South Korea using the Harris Model and comparatively analyzes the amount of runway capacity. As a result of the analysis, it was confirmed that the implementation of RECAT could increase the ultimate runway capacity of Incheon International Airport. This paper's calculation methods and results can be used as primary data for implementing RECAT in other airports.

• Journal of Advanced Navigation Technology
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• v.19 no.2
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• pp.123-132
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• 2015

Among various fields of the CNS/ATM, the surveillance field which includes ADS-B system, MLAT system, and WAM system is implemented. These next generation systems provide superior performance in tracking aircrafts. However, They still have error. In this paper, filtering algorithm is proposed in order to enhance aircraft tracking performance of ADS-B, MLAT, and WAM systems. The proposed method is a Robust Interacting Multiple Model filter, called Robust IMM filter, that improves IMM filter. The Robust IMM filter can not only improves the aircraft tracking performance but also track aircraft continually using estimates calculated from the filter when data losses occur. The simulation results of the proposed aircraft tracking methods show that the filtering data provides a better performance up to an average of 19.21%.