The Decoupling Algorithm of Phased Array Radar Seeker Based on the Stability of Beam

Phased array radar seeker technology is an important development realm of today's military power in the world. For the way of whole strapdown, the coupling between missile attitude and beam direction is one of the key technologies needing to be solved at present. This paper proposed a decoupling algorithm based on stability of the beam for the coupling problem which caused by the interference of missile attitude, extracted the line of sight rate in pitching and yaw directions. The theory process of beam stability algorithm was deduced in detail, and the decoupling matrix was solved by the algorithm. According to the results of simulation experiments, it showed that the algorithm is a good way to isolate the missile attitude disturbance in beam direction, and proved that the algorithm based on stability of the beam is effective in decoupling and extracting the line of sight of phased array radar seeker.