A low-perturbation near-field imager equipped with optical MST probes
Bibliographic record
Abstract
In this paper, the design and implementation of a near-field microwave imager based on a probe consisting of an optically modulated scatterer (OMS) is described and discussed. The probe uses a commercial-off-the-shelf (COTS) photodiode chip and a short dipole and it fulfils the requirements for a minimum scattering antenna. Measurement using this OMS probe is nearly perturbation-free due to the low scattering of the measured radio-frequency electric field by the optical fiber used to carry the modulating light signal. An array of OMS probes is then developed to eliminate or reduce the delays associated with a mechanical positioning system in a planar near-field setup. Optical power switching between the array elements is done with a switched laser diode array using a number of fiber-pigtailed laser diodes. The performance assessment of the near-field imager, including its linearity and accuracy, is made by comparisons with a known field distribution.
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 | 0.000 | 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 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".