Predictive Functional Control-Based Zenith Pass Controller Design for Roll-Pitch Seeker

Table 1

Definitions of coordinate system.

Frame	Definition
B	(i) Missile body frame (regarded stationary for simplicity); (ii) : missile nose direction; (iii) : right direction, on the yaw plane
S	(i) Seeker antenna heading frame; (ii) : antenna boresight direction; (iii) : coincides with pitch gimbal axis; (iv) = seeker roll, pitch gimbal angles
P	(i) Target pointing frame; (ii) : sightline direction; (iii)
DS	(i) Target pointing frame; (ii) : sightline direction; (iii) : coincides with pitch gimbal angles; (iv) = desired roll, pitch gimbal angles of seeker
LOS	(i) LOS frame; (ii) : sightline direction; (iii) : coincides with the z-axis of body frame; (iv) = azimuth and elevation angles of LOS based on missile body frame