Low-complexity and frequency-scalable analog real-time FDM receiver based on a dispersive delay structure
Why this work is in the frame
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Bibliographic record
Abstract
A real-time analog frequency division multiplexing (FDM) receiver is proposed based on a dispersive delay structure (DDS). The DDS used here is a C-section all-pass network with a linear group delay response. It demultiplexes the FDM signal in the time domain by mapping each of its frequency components to its corresponding group delay. Compared to conventional FDM receivers, which utilize many analog and digital components for demultiplexing, making the receiver architecture complex, the proposed FDM receiver employs a single DDS in a simpler architecture. Moreover, the digital circuits employed in the conventional FDM receivers suffer from certain limitations at high frequencies, such as low speed, high power consumption and cost. The proposed DDS-based FDM receiver is purely analog and can be frequency-scaled.
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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) | 0.003 | 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