CAJ | 학술논문

针对拦截大机动目标的中制导问题,设计了一种最优中制导律.建立了弹目相对运动学模型,以控制能量最小和中末制导交班时刻的速度前置角最小为性能指标,利用伪控制变量方法推导了最优制导律,并给出了一种剩余飞行时间的估计方法.仿真结果表明,所设计的制导律在目标作大机动飞行的情况下,能够有效减小制导指令且使中末制导交班时刻的速度前置角接近于0.
침대란절대궤동목표적중제도문제,설계료일충최우중제도률.건립료탄목상대운동학모형,이공제능량최소화중말제도교반시각적속도전치각최소위성능지표,이용위공제변량방법추도료최우제도률,병급출료일충잉여비행시간적고계방법.방진결과표명,소설계적제도률재목표작대궤동비행적정황하,능구유효감소제도지령차사중말제도교반시각적속도전치각접근우0.
In order to intercept big maneuvering target, an optimal midcourse guidance law was proposed. The relative kinematic relation was established. By minimizing the energy and the velocity deflection angle at the moment of the midcourse-terminal handover, the optimal midcourse guidance law was derived by means of pseudo control variable. During the design process ,an estimation method of time-to-go was put forward. Simulation results show that the proposed guidance law can effectively minimize the normal overload, and reduce the velocity deflection angle to nearly zero while intercepting big maneuvering target.