Data-based modeling of propeller tip-vortex cavitation noise for realistic acoustic ship signature
Why this work is in the frame
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Bibliographic record
Abstract
Propeller tip-vortex cavitation (TVC) noise significantly influences the acoustic signature of a navigating vessel; however, its detailed simulation has not been extensively developed thus far, owing to the complexity of TVC noise. This paper proposes an advanced data-based method for generating propeller TVC noise to enhance the realism of passive sonar simulators. Generative adversarial networks are applied to randomly create waveforms of TVC noise sources, and a probabilistic representation of TVC occurrences is adopted to continuously generate them depending on the ship speed. The proposed method is validated using the performance metrics of statistical measures and auditory features. The signals simulated by the proposed method effectively represent the time–frequency characteristics of the propeller TVC noise depending on the ship speed.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it