[Retracted] Perception and Recognition of Upper Limb Movement Trajectory of Aerobics Based on Multi-Intelligent Sensors

Table 2

The results of calculating the roll angle by the vector observation method.

Actual angle	Measuring angle	Actual angle	Measuring angle
0	0	10	11.57
20	22.55	30	33.89
40	44.41	50	51.64
60	64.11	70	77.14
80	77.21	90	N/A