Real-Time Millimeter-Wave Imaging With Linear Frequency Modulation Radar and Scattered Power Mapping
Bibliographic record
Abstract
We present a novel real-time image reconstruction method processing linear frequency modulated (LFM) signals. The method exploits the principles of the Fourier-space scattered power mapping (F-SPM). We show that F-SPM, originally developed for frequency-domain signals, can be easily modified to process time-domain data with the same reconstruction speed and image quality. To facilitate validation, we have developed an in-house time-domain radar simulator, which generates synthetic LFM data much faster than full-wave time-domain simulations, which are prohibitively slow. The new image-reconstruction method is validated through synthetic data generated by the radar simulator as well as experimental data acquired with off-the-shelf millimeter-wave (77 to 81 GHz) LFM radar. Comparisons in terms of reconstruction speed and accuracy are carried out with the method of microwave holography, which is deemed the fastest image-reconstruction method for LFM radar.
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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".