A Finite-time Convergent Variable Structure Guidance Law With Impact Angle Constraint

摘要

For attack the maneuvering target at a given direction, on the principle of mathematics, the guidance law based on traditional Lyapunov stability can only converge the line of sight angular rate to the zero, and converge the ballistic azimuth to the expected angle, when the time approaches infinity. Base on the stability theory of nonlinear control systems, a finite-time convergent variable structure guidance law with impact angle constraint is proposed. The simulation of some anti-ship missile against high maneuvering target has made, and the results shown the Tightness and effectiveness of the proposed method.