An Integrated Guide and Control Strategy to Enhance the Precision of Guidance Laws

Recently, ballistic missiles, in particular, Intercontinental ballistic missile (ICBM), with their high speed and high maneuverability, have posed great challenges for traditional intercepting techniques and methods. Despite the promising prospect of a new method, head-pursuit (HP) guidance method, there still exist problems that need to be solved. To address these problems, this paper, basing on sliding mode theory, proposes an integrated nonlinear guide-control strategy which takes into account both missilepsilas control loop character and guidance loop character. This strategy can effectively resolve escape maneuver of the target so that a favorable guide quality is still achievable even if the control loop is not compensated. Simulation is also done to test the validity of the integrated strategy we propose. And finally different guide and control qualities considering the dynamic features of different orders are compared to provide reference for practical engineering application in the future.