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

Table 1

Results of pitch angle calculation using vector observation method.

Actual angle	Measuring angle	Actual angle	Measuring angle
0	0	10	10.22
20	21.73	30	32.33
40	43.81	50	53.16
60	64.43	70	75.61
80	78.16	90	N/A