GPS/SINS制导炸弹建模与弹道仿真

针对某型制导炸弹控制系统的研制需求,应用全弹道建模方法,建立了炸弹完整的数学模型.根据射程和命中精度的要求,提出了弹道设计思路,在滑翔段采用给定俯仰角飞行的方法,使炸弹尽快脱离跨音速飞行状态;在俯冲段采用比例导引法,导引炸弹命中目标.在VC 6.0环境下,运用OperGL图形库,开发了弹道仿真软件,该软件能实时、直观地显示了制导炸弹飞行的全过程及相关的飞行参数.仿真结果表明:所设计的弹道具有射程远、精度高的特点,有较高的实用价值.

Modeling and trajectory simulation of guided bomb based on GPS/SINS

The bomb's mathematical model has been developed based on the whole trajectory modeling method.The trajectory design method is proposed.In gliding phase,a descending trajectory based on given pitch angle is presented to make the bomb escape from transonic flight as quickly as possible.In dive phase,proportional guidance law is adopted to guide the bomb to the target.The trajectory simulation software has been developed under the environment of VC 6.0 using OperGL library,in which the flying postures and all kinds of flight parameters can be displayed real-timely and visually.Simulation results indicate that the trajectory has many advantages such as better accuracy,easy realization and great application value.