Demonstration of Inter-Vehicle UWB Ranging to Augment DGPS for Improved Relative Positioning
Why this work is in the frame
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Bibliographic record
Abstract
Vehicle-to-vehicle (V2V) navigation is reviewed and the concept of differential GPS relative navigation augmented with ultra-wideband (UWB) and bearing measurements is introduced theoretically. Filtering software is developed and tested using a data set collected between three moving vehicles in a test in Calgary. Initial results combining GPS pseudorange, UWB range and bearing measurements show that the additional measurements can significantly improve horizontal positioning accuracy, particularly in environments where GPS availability is poor. The UWB measurements generally contributed to an improved along-track relative position while the bearing measurements improved the across-track position. Data from the three vehicle test was also used to characterize UWB systematic errors in the V2V environment. Correcting for a scale factor and bias in each UWB range measurement reduced the UWB errors from decimeter to centimeter magnitude and allowed for an improved carrier-phase DGPS float solution augmented with UWB ranges to be calculated.
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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 | 0.001 | 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 | 0.001 |
| 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