“…In [33], the extended state observer based guidance law (ETSMG) is given as where 1 = 1, 2 = 2, 1 = 3, 2 = 1.5, = = 500, = 0.6, 01 = 50, 02 = 1800. The design parameters of the SANFTSMG are chosen as 1 = 30, 2 = 2.65, 1 = 60, 2 = 1.48, 1 = 4, 2 = 0.5, 3 = 118, 4 = 0.01, and = 0.68.…”