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Record W2963673165 · doi:10.1109/rast.2019.8767789

Attitude Estimation for a Deorbiter CubeSat

2019· article· en· W2963673165 on OpenAlexaff
Houman Hakima, M. Reza Emami

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicSpace Satellite Systems and Control
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsCubeSatQuaternionKalman filterControl theory (sociology)EstimatorSpacecraftComputer scienceExtended Kalman filterMonte Carlo methodTorqueAngular velocityStar trackerInertial measurement unitAttitude controlAerospace engineeringSatellitePhysicsEngineeringMathematicsArtificial intelligenceClassical mechanics

Abstract

fetched live from OpenAlex

This paper investigates the attitude estimation ca pabilities of a debris-removing nanosatellite called deorbite CubeSat. The spacecraft is designed based on the utilizatioi of commercially-available components with long space heritage which are embedded in an eight-unit form factor. The attitud. estimation machinery employed in this work is a discrete time, quaternion-based, extended Kalman filter, which utilize measurements provided by a three-axis rate sensor, five su sensors, and a three-axis magnetometer. To obtain a linear state space model, gravity gradient and magnetic disturbance torque are included in the plant model, and the model is linearizec with respect to the process noise and the states, namely the inertial angular velocities and the quaternions. measurement noises are modelled based on zero-mean Gaussian distributions and are quantified based on the performance of the state-of-the art, commercial-of-the-shelf devices. A Monte Carlo simulatioi is created to analyze the performance of the estimator agains various initial angular velocities and quaternions, both in the sunlit and in the eclipsed portions of the orbit. In light o the results, the accuracy of the deorbiter CubeSat's attitud knowledge is discussed.

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.

How this classification was reachedexpand

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: Empirical
Teacher disagreement score0.532
Threshold uncertainty score0.652

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.001

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 head0.003
GPT teacher head0.187
Teacher spread0.184 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations3
Published2019
Admission routes1
Has abstractyes

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