On the design of impedance matching circuits for vehicular power line communication systems
Bibliographic record
Abstract
The design of power line communication (PLC) systems for vehicles, i.e., vehicular power line communication (VPLC), is a challenging task as propagation conditions are harsh and devices need to be low cost and highly integrated (to have minimal overhead on vehicle's cost and weight). One particular challenge, which is common to many PLC application scenarios, is the temporal and spatial variation of the input impedance. In this paper, we investigate on this issue and, based on previous studies and measurements on access impedances for a PLC network in a car, we discuss the design of adaptive impedance matching circuits for VPLC. This includes a study on frequency range of operation, suggestions for impedance matching circuits, and proposing a circuit structure. In particular, since inductors are an integral part of matching circuitry and given that over the typical frequency range of operation for VPLC their integration is challenging, if not impractical, we advocate the use of active inductors in matching circuits. As compared to passive inductors, they occupy a smaller on-chip size and their inductance is adjustable. We also propose an active inductor structure that provides a wide range of inductance values which are suitable for VPLC applications.
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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 | 0.001 | 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".