A Guidance Strategy for Strapdown Seeker considering Minimum Field-of-View Angle Constraint

Table 1

Algorithm of the guidance strategy.

Step 1	Guidance order obtained as , , and
Step 2	Calculating heading error angle from equation (19)
If
Step 3	Calculating and by equation (21) and equation (24)
	Updating rolling angle order as by equation (34) or (35)
	Updating acceleration orders as and by equation (36)
Else
Step 4	Calculating from equation (21)
	Updating rolling angle order as by equation (37)
	Updating the expected yawing angle as by equation (38)
	Generating new acceleration orders by equation (39)
End If
Step 5	Guidance order rewritten in body frame as equation (40)