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. Author manuscript; available in PMC: 2026 Jul 17.
Published before final editing as: J Med Robot Res. 2026 Jul 4:2650007. doi: 10.1142/s2424905x26500078

Table 2:

Comparison of the MPPI and LQR controllers’ performance in terms of tracking desired pitch and yaw signals for square, circle, and infinity trajectories.

Trajectory Pitch (deg) Yaw (deg)
RMSE MAE RMSE MAE
LQR MPPI p LQR MPPI p LQR MPPI p LQR MPPI p
Rectangle 2.54±0.78 2.65±1.08 0.8748 1.82±0.67 1.88±0.83 0.9143 1.66±0.37 1.85±0.23 0.4228 1.34±0.24 1.29±0.11 0.7232
Oval 2.78±1.06 2.17±0.40 0.2325 2.24±0.97 1.55±0.31 0.1480 2.81±0.68 2.88±0.62 0.8559 2.35±0.72 2.30±0.49 0.8913
Infinity 2.83±1.14 2.47±1.34 0.4861 2.45±1.13 1.95±1.29 0.3237 2.19±0.68 1.83±0.34 0.1202 1.75±0.63 1.48±0.35 0.2115