Table 3.

Three-factor with three-level orthogonal experiment table for the SPS.

Experimental group	Factor A: Swing-arm sprayer operating speed (m/s)	Factor B: T16 plant-protection UAV operating height (m)	Factor C: T16 plant-protection UAV operating speed (m/s)
1	0.40 (1)	2.00 (1)	1.00 (1)
2	0.40 (1)	2.50 (2)	1.50 (2)
3	0.40 (1)	3.00 (3)	2.00 (3)
4	0.50 (2)	2.00 (1)	1.50 (2)
5	0.50 (2)	2.50 (2)	2.00 (3)
6	0.50 (2)	3.00 (3)	1.00 (1)
7	0.60 (3)	2.00 (1)	2.00 (3)
8	0.60 (3)	2.50 (2)	1.00 (1)
9	0.60 (3)	3.00 (3)	1.50 (2)

A1 refers to the first level of factor A, that is, A1 is 0.40m/s; B1 refers to the first level of factor B, that is, B1 is 2.00 m; other factor levels are expressed in the same way, e.g., B2, C3, etc.