The guidance control system design of a miniature guided ammunition

摘要

This paper is concentrated on a canard-configured miniature guided ammunition and the pneumatic fluid mechanics simulation calculation results show that the ammunition has good aerodynamic characteristics. At the same time, based on the longitudinal linear kinematic equation of the ammunition, the transfer function which is from canard deflection angle to pitch attitude angle and normal acceleration is established. This paper designs a two-loop acceleration autopilot, of which the step response characteristics can not only shorten the adjusting time effectively but also better solve the contradiction between rise time and overshoot with a faster convergence speed. Thus the two-loop acceleration autopilot can realize fast tracking in the guidance phase. This research will perform as theoretical basis for the guidance control system integration design of canard-configured guided ammunition and the analysis of its stability in the future.