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针对高速机动目标,提出了三维联合比例制导律.该制导律通过时变导航比将顺、逆轨拦截优势相结合,由2个平面制导律合成三维制导律后,可实现顺顺轨、逆逆轨和顺逆轨结合3种拦截模式,极大地扩展了经典比例制导律捕获区域.在二维条件下,根据目标加速度推导了视线角速率的解析式,设计了时变导航比.将二维联合比例制导律扩展到三维,修正了之前算法中俯仰平面的拦截弹路径倾角与速度计算误差,并给出了目标加速度背离拦截弹的机动模型.仿真结果表明:对于高速机动目标,联合比例制导律捕获区域更大,且较经典比例制导律和负比例制导律脱靶量更低、较增广比例制导律控制力更小.
For the high-speed maneuvering target, a three-dimensional joint ratio guidance law is proposed, which combines the advantages of both clockwise and anti-track intercepts by time-varying navigation ratio and computes three-dimensional guidance law by two plane guidance laws. In the two-dimensional condition, the analytic formula of line-of-sight angular velocity is deduced according to the target acceleration and the time-varying navigation ratio is designed. The two-dimensional The joint proportional guidance law is extended to three dimensions, the error of pitch angle and velocity of the interception missile in the previous algorithm is corrected, and the maneuvering model of the target acceleration departure from the interceptor is given.The simulation results show that for the high speed maneuvering target, the joint proportional guidance The law capture area is larger, and the miss distance is lower than that of classical proportional guidance law and negative-proportion guidance law, which is lower than that of augmented proportional guidance law.