Point-spread functions in inverse scattering and image reconstruction with microwaves and millimeter waves
Bibliographic record
Abstract
Chapter Contents: 1.1 Introduction 1.2 System point-spread function (PSF) 1.3 Models of scattering in terms of point-spread functions 1.3.1 Scattering models using convolution 1.3.2 Field-based electromagnetic scattering models 1.3.3 Electromagnetic scattering in terms of S-parameters 1.3.4 Electromagnetic scattering models for real-time inversion 1.4 Extracting the scattering signals from measured data 1.5 Reconstruction with quantitative microwave holography 1.5.1 Microwave holography with analytical PSFs 1.5.2 Basics of quantitative microwave holography (QMH) 1.6 Basics of scattered power mapping (SPM) 1.7 Examples of QMH and SPM 1.8 Advanced signal processing for improved image reconstruction 1.8.1 Apodization filtering 1.8.2 Low-pass filtering in the Fourier domain 1.8.3 PSF translation 1.8.4 Frequency normalization 1.9 Image reconstruction of breast phantom 1.10 Conclusions Acronyms References
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 machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.011 | 0.007 |
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 source (direct Gemma or distilled Codex), 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".