Control for canceling periodic disturbances with uncertain frequency
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Presents an algorithm to cancel periodic disturbances with uncertain frequency. The disturbances are canceled using a controller with an internal model structure in parallel with a traditional PI controller. It is shown that under ideal circumstances the time varying states of the internal model can be mapped to two time invariant variables, the magnitude or energy of the internal model and the difference between the nominal error frequency and the true error frequency. An additional integral controller then can be used to reduce this error to zero. The stability of the feedback control system including this algorithm is justified by singular perturbation theory. Simulations demonstrate the validity of the analytical results, the ability of this algorithm to identify the frequency of periodic disturbances and the capability of this feedback control system to reject periodic disturbances with uncertainty in frequency.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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