Analysis of downlink aircraft parameters monitored by SSR mode S in ENRI

Senoguchi, Atsushi; Koga, Tadashi

doi:10.1109/dasc.2009.5347483

Cited by 12 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Short-term conflict alert (STCA) is an ATC safety-net providing an alert some time before an ATC separation infringement occurs. The warning time in enroute airspace is around 3 min in Japan 26) and 2 min in Europe. 27) Figure 13 shows the time from the first RWC alert to the CPA.…”

Section: Interaction With Short-term Conflict Alert Systemsmentioning

confidence: 99%

Potential Operational Consequences of the Use of ACAS Xu in Controlled Airspace

AVENEAU,

TORATANI,

SENOGUCHI

et al. 2024

Trans. Japan Soc. Aero. S Sci.

View full text Add to dashboard Cite

A "detect-and-avoid" capability providing a "remain well-clear" function will be needed for unmanned aircraft to fly safely in uncontrolled airspace. It could also be used in controlled airspace provided that the action chosen by the pilot, based on the system suggestive guidance, is compatible with the current air traffic control clearance or an amended clearance. The study reported in this paper looks at the potential operational consequences of the interaction between a pilot and the air traffic controller in controlled airspace when a clearance amendment must be requested by the pilot using the recently standardized detect-and-avoid system, Airborne Collision Avoidance Systems Xu (ACAS Xu). Numerical simulations on a potential encounter are performed. A model of pilot behavior when faced with a remain well-clear alert (including pilot-controller communication delays) is used. An analysis of the qualitative results outlines several areas of concern: the possible confusion caused by multiple changes in remain well-clear guidance, the undesirable effects when both aircraft are equipped with ACAS Xu, and the potential interaction with short-term conflict alerts displayed at the air traffic controller's workstation.

show abstract

Section: Interaction With Short-term Conflict Alert Systemsmentioning

confidence: 99%

Potential Operational Consequences of the Use of ACAS Xu in Controlled Airspace

AVENEAU,

TORATANI,

SENOGUCHI

et al. 2024

Trans. Japan Soc. Aero. S Sci.

View full text Add to dashboard Cite

show abstract

“…The following data were provided [26]: clock, aircraft identifier and type, longitude and latitude, pressure altitude, true track angle, ground speed (GS), magnetic heading, true airspeed (TAS), and IAS. Aircraft data within 250 NM from the ground station were provided once every 10 s. The SSR Mode S data acquired from December 1 to 31, 2014, were selected for analysis.…”

Section: Track and Weather Datamentioning

confidence: 99%

Waypoint Position Optimization for Accurate Ground-Based Arrival Time Control of Aircraft

Takeichi

2018

Journal of Advanced Transportation

View full text Add to dashboard Cite

In the ground-based arrival time control operation, the measurement of the arrival time error and the speed advisory to cancel it are performed at specific waypoint(s). It is generally recognized that the arrival time accuracy depends on the accuracy of trajectory prediction and control and the availability of information about the aircraft intent. Additionally, the position of the waypoint also determines the arrival time accuracy. Therefore, in this study, the feasibility of waypoint position optimization to improve the arrival time accuracy of aircraft controlled by ground-based speed advisory and its effectiveness are discussed. The models of flight time uncertainty and the arrival time control window were developed using the actual track and numerical weather forecast data. An optimization problem was formulated that defined the arrival time uncertainty at the terminal point as the objective function and numerically solved using sequential quadratic programming. Through numerical investigations, the feasibility of the waypoint position optimization and its effectiveness were clearly demonstrated in comparison with uniform arrangement cases. It was also clarified that the advantage of the multiple waypoint application was enhanced when larger arrival time control windows were available.

show abstract