Table 11. The range of variance of features for C1 for each day showing the minimum, median, and maximum values when the motion of the platform was at least 30 seconds in duration.
| C1 | Day | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| Feature | min | med | max | min | med | max | min | med | max | |
| FFT Joystick digital ‘y’ axis (Hz) | 1.1 | 4.8 | 6.0 | 2.3 | 4.5 | 10.6 | 0.5 | 2.2 | 4.4 | |
|
Velocity vector (x, y) ×10
2
smoothness ‘S’ |
1.4 | 3.5 | 6.1 | 1.7 | 2.9 | 3.9 | 2.2 | 2.9 | 5.3 | |
| Input bias ellipse | F/right a | 6.5 | 19 | 44 | 6 | 13 | 24 | 12 | 18 | 24 |
| F/right b | 13 | 20 | 104 | 18 | 34 | 60 | 15 | 29 | 71 | |
| F/left b | 5 | 18 | 35 | 6 | 10 | 21 | 8 | 16 | 32 | |
| F/left b | 14 | 21 | 97 | 21 | 36 | 70 | 20 | 26 | 102 | |
| R/right a | 3 | 16 | 49 | 6 | 20 | 40 | 16 | 25 | 36 | |
| R/right b | 18 | 43 | 127 | 6 | 56 | 96 | 22 | 31 | 102 | |
| R/left a | 8 | 13 | 35 | 2 | 17 | 32 | 10 | 18 | 47 | |
| R/left b | 16 | 30 | 76 | 28 | 57 | 127 | 18 | 72 | 90 | |
|
Velocity vector bias
(mm/s) |
F/right | 10 | 24 | 45 | 10 | 16 | 24 | 12 | 16 | 40 |
| F/left | 13 | 25 | 33 | 11 | 19 | 29 | 10 | 15 | 42 | |
| R/right | 6 | 28 | 89 | 10 | 26 | 73 | 15 | 33 | 51 | |
| R/left | 9 | 21 | 160 | 11 | 21 | 46 | 14 | 23 | 36 | |
| Driving time | ratio | 0.1 | 0.5 | 1.6 | 0.4 | 0.7 | 1.6 | 0.1 | 0.4 | 1.0 |
| total | 39 | 95 | 360 | 30 | 75 | 161 | 56 | 121 | 1424 | |