Local Level Lab

Airborne measurements. Open methods.

What the saved prediction errors show

22 saved error curves examined. The two deadline-limited starts remain unavailable. No new fit or aircraft propagation is performed. Every prediction, model choice and accuracy label is unchanged.

These settings reuse one development recording. They are not independent flights. The plots show how errors grow during training and later prediction. The dotted line begins prediction.

Candidate Removal Working errors Weighted training RMS Later N/E/up lag-one correlation
Globe + specified field Zero Short memory 0.5327 0.991 / 0.992 / 0.992
Globe + specified field Zero Persistent 0.06752 0.991 / 0.992 / 0.992
Globe + specified field Profiled Short memory 0.5327 0.991 / 0.992 / 0.992
Globe + specified field Profiled Persistent 0.06752 0.991 / 0.992 / 0.992
Globe + zero field Zero Short memory 1338 0.992 / 0.992 / 0.992
Globe + zero field Zero Persistent 83.61 0.992 / 0.992 / 0.992
Globe + zero field Profiled Short memory 1338 0.992 / 0.992 / 0.992
Globe + zero field Profiled Persistent 83.61 0.992 / 0.992 / 0.992
Tested disc Zero Short memory 2857 0.992 / 0.992 / 0.992
Tested disc Zero Persistent 175.1 0.992 / 0.992 / 0.992
Tested disc Profiled Persistent 175.1 0.992 / 0.992 / 0.992

Unchanged horizontal and height prediction errors

A correlation near one means nearby errors move together. It is not raw receiver noise: aircraft reconstruction, instrument calibration, receiver errors and model mismatch all contribute. Large slow trends can produce high correlation. First differences describe changes between adjacent saved errors, using their actual time intervals; they do not separate those causes.

Training and prediction are summarized separately. Centred Fourier variance describes fast and slow fluctuations only when the original sampling is uniform; no interpolation is used. Sixty-second blocks are descriptive, not independent trials. Constant signals have undefined correlations.

These are not calibrated confidence statements. Weighted training RMS describes an already fitted objective; it is not a chi-squared test, an instrument accuracy measurement or a complete prediction-error law. All 22 completed starts are retained in the statistics; the table and plot use the parent’s training-only choices. Seven confirmation groups remain protected, and the 53-stretch findings remain unchanged.

Axis statistics CSV · Diagnostic plan · Parent prediction comparison · Next analyses