Redesign of the Stabilized Pitch Control System of a Semi-Active Terminal Homing Missile System

摘要

A high-order stabilization filter was formerly designed to stabilize an unstable pitch control system of a terminal homing missile system. In this report, a new dominant-data matching method is presented to redesign the high order stabilization filter. Using this new method several reduced order filters are obtained. As a result, the cost of implementation is reduced and the reliability is increased. An algebraic method is also applied to redesign the stabilization filter so that the performance of the redesigned pitch control system is improved. In addition, the proposed dominant-data matching method can be applied to determine a reduced order model of a high order system. Unlike the reduced order models obtained by most existing model reduction methods, the reduced order model mentioned above has the exact assigned frequency-domain specifications of the original system. The dominant-data matching method can also be applied to identify any practical system. (Author)