Dataset for "SIMAD: A Minimal-Information Measurement Framework for Attitude Determination under Incomplete Vector Observations"

Experimental procedure The experiment was conducted through a sequence of controlled rotations. The system was initially placed at Position 1, then rotated 90° clockwise to Position 2, followed by another 90° clockwise rotation to Position 3. Afterward, the system was rotated 90° counter-clockwise back to Position 2, where the experiment was terminated. At each position, the system remained stationary for at least one minute to ensure stable data acquisition. It should be noted that during the final return to Position 2, the fiber-optic IMU data acquisition interface unexpectedly stopped recording data, likely due to a loose or faulty data cable connection. Consequently, data collection was terminated prematurely. Data files - 2025-09-04_20-37-18.txt: ER-3MG-01 three-axis MEMS gyroscope measurements (unit: °/s). The first column records timestamps in milliseconds since the Unix Epoch (1970-01-01 00:00:00 UTC). - 2025-09-04_20-37-14.txt: ZIMU070 IMU measurements, including three-axis gyroscope (unit: °/s) and three-axis accelerometer data (unit: m/s²).