Analysis of Equalization for DS-UWB Systems
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Bibliographic record
Abstract
In this paper, we analyze equalization for direct sequence based ultra-wideband (DS-UWB) systems using RAKE combining at the receiver. To this end, we consider the effective discrete-time impulse response at the RAKE combiner output and study the distribution of the zeros of the corresponding transfer function. Thereby, we apply the IEEE 802.15.3a standard channel model. Our findings suggest that linear equalization (LE) is well suited for the lower data rate modes of DS-UWB systems, whereas decision-feedback equalization (DFE) is favorably applied for high-data rate modes. These conclusions are confirmed by simulation results. It is also shown that LE and DFE perform relatively close to the matched filter bound limit.
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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 | 0.000 |
| 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