Research on the Influence of the Parasitic Loop of the Roll-Pitch Seeker on the Stability of the Guidance System

Abstract Disturbance rejection rate is an important performance index of the seeker,the disturbance affects extraction accuracy line-of-sight angular velocity output by seeker,and introduce additional parasitic loop in guidance loop,this stability system and reduces missile system. This paper analyzes principle roll-pitch model seeker caused scale deviation between detector, frame angle sensor gyroscope established, time domain response characteristics are analyzed. Then, based on time-invariant theory, influence parameters analyzed.The simulation results show that positive negative feedback have a great It necessary to design appropriate according meet requirements.