Bibliographic record
Abstract
Multi-angle swath bathymetry sonar systems use the range and estimates of the angle of signal arrival to determine bottom depth. The accuracy of angle of arrival estimates is influenced by a number of factors including noise levels, the presence of multipath arrivals, signal bandwidth, pulse length etc. Angle estimation accuracy is also affected by the integrity of the transducer array employed to receive the returning signals. This paper addresses some of the issues associated with transducer design for multi-angle swath bathymetry systems including inter-element crosstalk and housing interactions. Beampatterns and relative angle responses are presented for transducer arrays that show evidence of crosstalk and housing interactions. It is shown that the crosstalk and housing interactions can be reduced through the use of different inter-element materials and housing configurations. Beampatterns and relative angle responses are presented for an improved array and compared to the previous patterns and phase responses. The discussion and experimental results are limited to arrays constructed with piezo-ceramic bars resonant at 300 kHz, and intended for shallow water use.
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 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 | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".