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Record W2326769983 · doi:10.2514/6.2015-2599

Trajectory Accuracy Sensitivity to Modeling Factors

2015· article· en· W2326769983 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venue15th AIAA Aviation Technology, Integration, and Operations Conference · 2015
Typearticle
Languageen
FieldEngineering
TopicAir Traffic Management and Optimization
Canadian institutionsLockheed Martin (Canada)
Fundersnot available
KeywordsSensitivity (control systems)TrajectoryComputer scienceEngineeringPhysicsElectronic engineering

Abstract

fetched live from OpenAlex

This paper presents the analysis of sensitivity of aircraft trajectory prediction to relevant modeling factors such as wind, temperature, thrust settings, speed and aircraft mass. The topic is important because current and planned automation systems used for air traffic management, airline operations and Flight Management Systems rely on the accuracy of four dimensional trajectories (4DT) to plan and manage operations. Trajectory accuracy becomes even more critical in the Trajectory Based Operations (TBO) concepts envisioned for the Next Generation Air Transportation system (NextGen). Understanding the predictability envelope under various realistic conditions provides insight into the potential benefits and limitations of the efficiency gains that are expected from TBO. The aim of this study is to perform a systematic analysis of the accuracy of trajectory predictions across a wide range of aircraft types and operating environments. This is done by Monte Carlo simulations of the trajectory generation process that take into account the error distributions of the input variables to the trajectory generation algorithms. The prior distributions are calibrated using empirical data. The Monte Carlo method is used to generate the posterior distributions of trajectory accuracy performance metrics.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.711
Threshold uncertainty score0.766

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.031
GPT teacher head0.244
Teacher spread0.212 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it