Ocean clutter characteristics for a coherent Doppler UHF radar
Why this work is in the frame
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Bibliographic record
Abstract
A coherent UHF radar has been developed by the authors for the detection of small targets in high sea-states. There are several important advantages that can be exploited by operating in the UHF band. The UHF spectrum has been proven to provide a window where the clutter energy scattered back from the sea is significantly less than at other radar frequencies. In addition, the availability of off-the-shelf UHF components allows the development on an inexpensive coherent radar prototype. Coherent radar operation allows for the processing of multiple radar returns for enhanced target detection. The radar has undergone extensive field testing during the summer of 1999 at various locations in Newfoundland, Canada, and Prince William Sound, Alaska. During these experiments, a wide variety of environmental conditions were experienced. Some of the results of the data analysis are presented. Specifically, an analysis is presented on characteristics of the ocean clutter at UHF frequencies and a comparison is made to historical measurements.
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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) | 0.001 | 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