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针对高速目标拦截问题,提出了能自动选择拦截模式并调整拦截弹速度,兼具顺、逆轨拦截能力的全向真比例制导律(OTPN),该制导律可以满足对高速目标实施全向拦截制导的需求。本文在高速目标的比例拦截制导研究中,发现存在2个满足成功条件且比例关系符号相反的制导终点,分别对应顺、逆轨拦截模式;在制导律的设计中综合控制加速度限制因素,通过制导比例关系的正负变换放宽了初始拦截约束条件。数值仿真结果验证了OTPN的正确性和有效性,与其他制导方案的拦截仿真比较表明:同等拦截条件下OTPN的捕获范围、拦截时间和总控制量需求等参数均优于经典比例和负比例制导律;通过捕获能力仿真,研究了控制加速度上限和比例系数取值对OTPN拦截捕获能力的影响。
For the high-speed target interception problem, an omnidirectional true proportional guidance law (OTPN) that can automatically select the interception mode and adjust the interception missile speed and has the ability of both forward and reverse tracking is proposed. The guidance law can meet the requirements of omnidirectional interception Guided demand. In the research of high-speed target proportional intercept guidance, we find that there are two end-of-guidance points that satisfy the success condition and the opposite signs of proportion, which correspond to the intercept mode of forward and reverse tracking respectively. In the design of the guidance law, the acceleration limiting factors are comprehensively controlled, The positive and negative transformation of the proportional relationship relaxed the initial interception constraints. Numerical simulation results verify the correctness and validity of OTPN. Comparing with other interception schemes, the simulation results show that the acquisition range, interception time and total control demand of OTPN under the same intercept conditions are better than the classical proportional and negative proportional guidance Through the simulation of capture capability, the influence of the upper limit of control acceleration and the value of scale factor on the capture ability of OTPN intercept is studied.