Design of Second-Order Sliding Mode Guidance Law Based on the Nonhomogeneous Disturbance Observer

Table 1

miss distances and flight times.

	Cosine; maneuvering		Step; maneuvering
FSMG	0.039 m	18.303 (s)	0.393 m	17.298 (s)
VDSMG	0.225 m	18.304 (s)	0.272 m	17.313 (s)
APNG	99364 m	—	96276 m	—