[Retracted] Application Research and Analysis of Intelligent Sensors in Tennis Serving Technical Correction Equipment

Table 4

Algorithm RMSE mean and variance comparison.

Algorithm name		Mean value of RMSE (m)	Variance of RMSE
1	Bayesian recursive filtering method	0.2754	0.0246
2	Kalman filtering method	0.2869	0.0215
3	Extended Kalman filter	0.2041	0.0159
4	Limiting filtering method median filter	0.2649	0.0412
5	Arithmetic average filtering method	0.2517	0.0325
6	Moving average filtering method	0.2942	0.0274
7	Limiting moving average	0.3027	0.0243
8	Filtering method	0.2876	0.0271