표 1. | Table 1. 근접센서 측정 속도 및 필터 추적 속도 비교 | Comparison with RMSE of velocities.

Case	RMSE [m/s]
Measured velocity error of proximity sensor	12.45
Tracking velocity error of basic Kalman filter	38.74
Tracking velocity error of proposed Kalman filter	3.34