Azimuth positioning of moving targets in two-channel SAR by direction-of-arrival estimation
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Bibliographic record
Abstract
Many present and future SAR systems that are also intended to measure and monitor moving objects on the ground will be restricted to only two parallel antenna apertures owing to the enormous costs involved for extra receiver channels. This is particularly true for space-based systems, such as RADARSAT-2 and TerraSAR-X. Classical techniques to simultaneously detect moving targets by rejecting the superimposed clutter and to estimate their correct locations subsequently via direction-of-arrival (DoA) estimates cannot be applied owing to the dual-receiver limitation. Proposed is an alternative method to retrieve clutter-suppressed target signals in the individual channels that allow the application of DoA-estimation and verifies its feasibility with measured airborne SAR data.
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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