CAJ | 학술논문

针对反导拦截弹助推段一般不进行大机动飞行、弹道相对平直的特点，基于小扰动线性化方程，设计了由阻尼回路、攻角回路和过载回路组成的三回路自动驾驶仪。在理想弹道计算的基础上选取特征点，在每个特征点处将弹体简化为二阶环节来近似。针对待优化参数多、且处于不同控制回路的特点，采用遗传算法对控制器参数进行优化。仿真结果证明所设计的控制器能够很好地跟踪指令信号。
침대반도란절탄조추단일반불진행대궤동비행、탄도상대평직적특점，기우소우동선성화방정，설계료유조니회로、공각회로화과재회로조성적삼회로자동가사의。재이상탄도계산적기출상선취특정점，재매개특정점처장탄체간화위이계배절래근사。침대대우화삼수다、차처우불동공제회로적특점，채용유전산법대공제기삼수진행우화。방진결과증명소설계적공제기능구흔호지근종지령신호。
The anti-missile interceptor usually does not execute large overall maneuvering flight, and the trajectory is flat in the boost phase. The small disturbance linearized equations are used to design the three-loop autopilot,including the damping loop,the angle of attack loop,and the overload loop. Characteristic points are chosen based on ideal trajectory. The missile model is simplified as a second order one on each characteristic point. Since lots of parametes in different control loops are to be optimized,it is difficult to use the general optimization method. Here we use genetic algorighm to optimize the controller parameters. The simulation results show that the proposed scheme can track the command signals exactly.