Narrowband interference mitigation in an ultra-wideband receiver
Why this work is in the frame
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Bibliographic record
Abstract
Ultra-wideband (UWB) links are inherently subject to interference from other narrowband communication links. The paper proposes a solution for suppressing these narrowband interference sources that is based on using an analogue filter bank (AFB) for pre-processing the received signal. The AFB outputs are subsequently processed by a combination of maximum ratio combining (MRC) and generalised matched filter (GMF) processing. This receiver architecture requires significantly less processing than the optimum GMF processing while achieving a comparable performance in the context of narrow band interference (NBI). Furthermore, because the AFB consists of low-order bandpass filters of modest selectivity, monolithic integration is practical. Hence, the AFB is potentially a low-cost manufacturable implementation of the UWB receiver. Analysis and simulated performance of the AFB architecture are presented in this paper. The metrics used are the overall theoretical capacity and signal-to-noise ratio of the receiver decision variable. These results are presented as a function of the overall receiver complexity for different compositions of narrow and wide bandwidth channel noise. It is also shown that AFB forms a signal space of dimension equal to the number of bandpass filters and that the processing can effectively cancel multiple tones up to this dimensionality.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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