Use Of ADS-B and Perspective Displays to Enhance Airport Capacity

Powell, J. David; Jennings, Chad; Holforty, Wendy

doi:10.1109/dasc.2005.1563365

Cited by 15 publications

(10 citation statements)

References 12 publications

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“…Aircraft 1 is within the field of view, so its position can be conformally integrated in the display, as was suggested by e.g., Ref. [5]. Although aircraft 2 is outside the PFD field of view, its conflict probe B is not.…”

Section: Probing Data In a Plan-view Cdtimentioning

confidence: 71%

“…However, for traffic this is not the case. The depiction of traffic to aid the pilot in detecting a potential future loss of separation has been the subject of a range of studies [1][2][3][4][5]. Several studies focused on questions such as dimensionality of the display, intruder symbology and presence of elements such as speed vectors.…”

Section: Introductionmentioning

confidence: 99%

“…[5], the depiction of traffic on a SV Primary Flight Display (PFD) and Navigation Display (ND) is proposed. With the traffic geometry shown in the example used in that paper, the pilot indeed sees the other traffic on the PFD.…”

Section: Introductionmentioning

confidence: 99%

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Beyond traffic depiction: conformally integrating the conflict space to support Level 3 situation awareness

2010

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The research described in this paper explores the addition of conformally integrated traffic probes into an egocentric Synthetic Vision (SV) Primary Flight Display (PFD). The underlying thought is that, although the traffic that is predicted to cause a future loss of separation may not lie within the field of view of the display, the location where the loss of separation is predicted to occur always will. Hence, rather than focusing on the depiction of traffic, which contributes to level 2 Situation Awareness (SA), the concept pursues spatially integrated depiction of the airspace where a loss of separation is predicted. This provides readily actionable conflict information, relieving pilots from the traffic position and conflict estimation task and contributing to level 3 SA. The paper describes the integration of the data from the traffic probe into an SV PFD. The advantages of the concept will be illustrated using several traffic conflict scenarios, including an overtaking scenario involving unmanned aircraft. Given that unmanned aircraft may be markedly slower than manned aircraft which operate within the same airspace, a spatially integrated depiction of airspace where a future loss of separation is predicted, can help to preserve safety in classes of airspace that accommodate both manned and unmanned aircraft. Additionally, examples are provided illustrating how traffic probes can support pilots in monitoring the conformance of traffic to the priority rules of 14 CFR 91.113.

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Section: Probing Data In a Plan-view Cdtimentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

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Beyond traffic depiction: conformally integrating the conflict space to support Level 3 situation awareness

2010

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“…The depiction of other traffic to aid the pilot in detecting a potential future loss of separation has been the subject of a range of studies [11][12][13][14]. Several studies focused on questions such as dimensionality of the display, intruder symbology and presence of elements such as speed vectors.…”

Section: Probing To Increase Traffic Awarenessmentioning

confidence: 99%

“…In Ref. [14], the depiction of other traffic on the SVS PFD and ND is proposed. With the traffic geometry shown in the example used in that paper, the pilot will indeed see the other traffic on the PFD.…”

Section: Probing To Increase Traffic Awarenessmentioning

confidence: 99%

An integrated conflict avoidance concept for aviation

Tadema

Theunissen

2009

2009 IEEE/AIAA 28th Digital Avionics Systems Conference

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Conflict probing consists of predicting the future separation between ownship and hazards for a set of ownship velocity vectors, up to a predefined prediction horizon. Using predefined alert thresholds, the probing data indicates which ownship velocity vectors will lead to a future conflict and what the corresponding time to conflict is. This information can be used for automated conflict avoidance and for providing awareness and decision support in case operator involvement is desired. As probing is performed in real-time, the conflict space is continuously updated while the situation develops. E.g., unforeseen maneuvers of intruder aircraft will be reflected by corresponding changes of the conflict space. Probing data allows for the depiction of the predicted future separation on a display. Hence, it provides awareness without the need for the hazard itself to be displayed. Furthermore, conflict probing can provide a common framework for the computation of coordinated conflict avoidance maneuvers that include integration of multiple types of hazards and constraints such as vehicle performance and right-of-way rules. The concept is scalable in terms of probe dimensions, prediction algorithms, look-ahead time, alerting thresholds, types of hazards and level of operator involvement. Simulations can provide measures for determining minimal input data accuracy requirements, maximum look-ahead times and maneuver strategies that are least susceptible to uncertainties. The scalability enables a range of possible implementations, specifically matched to the concept of operation, the available data, interfaces and displays, allowing gradual implementation.

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Separation Risk Evaluation Considering Positioning Uncertainties from the Automatic Dependent Surveillance-Broadcast (ADS-B) System

Liu

2019

J. Navigation

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A probabilistic methodology for separation loss probability assessments is proposed in this paper. The key focus is on the effect of uncertainties from multiple Automatic Dependent Surveillance-Broadcast (ADS-B) systems on the separation loss probability assessment. First, a brief review of the ADS-B system and its associated uncertainty quantification metrics is discussed. It is found that most existing studies focus on the individual ADS-B uncertainty quantification for a single aircraft, which is not sufficient for separation loss probability assessment when two or more aircraft are involved. Next, a probabilistic positioning model with multiple aircraft is proposed and various types of uncertainties are included in the proposed model. Numerical simulations show that a navigation satellite fault can significantly affect separation error when individual aircraft see different satellite sets. Following this, several demonstration examples are illustrated to show the bounds for separation loss probability estimation. Finally, several conclusions and suggestions are discussed based on this study. One major finding is that the separation risk significantly increases when two nearby aircraft use different satellite sets to navigate. Real-time assessment of this risk should be performed.

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Use Of ADS-B and Perspective Displays to Enhance Airport Capacity

Cited by 15 publications

References 12 publications

Beyond traffic depiction: conformally integrating the conflict space to support Level 3 situation awareness

Beyond traffic depiction: conformally integrating the conflict space to support Level 3 situation awareness

An integrated conflict avoidance concept for aviation

Separation Risk Evaluation Considering Positioning Uncertainties from the Automatic Dependent Surveillance-Broadcast (ADS-B) System

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