Table 4 Measurement results of left track irregularity in field environments with 60 km/h speed.
From: Novel method to measure track irregularity based on multiple MEMS-IMU and geometric constraint
ID | Horizontal (mm) | Vertical (mm) | ||||||
|---|---|---|---|---|---|---|---|---|
Our proposed | Fiber-optic IMU | Our proposed | Fiber-optic IMU | |||||
RMSE | STD | RMSE | STD | RMSE | STD | RMSE | STD | |
M21 | 0.46 | 0.37 | 0.41 | 0.35 | 0.45 | 0.36 | 0.40 | 0.34 |
M31 | 0.48 | 0.39 | 0.44 | 0.36 | 0.47 | 0.38 | 0.43 | 0.35 |
M41 | 0.51 | 0.41 | 0.45 | 0.37 | 0.5 | 0.40 | 0.44 | 0.36 |
M32 | 0.47 | 0.42 | 0.42 | 0.36 | 0.46 | 0.41 | 0.41 | 0.35 |
M42 | 0.51 | 0.43 | 0.44 | 0.38 | 0.50 | 0.42 | 0.43 | 0.37 |
M43 | 0.56 | 0.45 | 0.47 | 0.39 | 0.55 | 0.44 | 0.46 | 0.38 |
Mean | 0.49 | 0.41 | 0.43 | 0.37 | 0.48 | 0.40 | 0.42 | 0.35 |
Min | 0.47 | 0.37 | 0.41 | 0.35 | 0.45 | 0.36 | 0.40 | 0.34 |
Max | 0.56 | 0.45 | 0.47 | 0.39 | 0.55 | 0.44 | 0.46 | 0.38 |
