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针对逆轨、顺轨拦截模式,提出了带末端约束碰撞角的ACPN(Angle Control Proportional Navigation)、ACRPN(Angle Control Retro-Proportional Navigation)2种轨迹成型制导律.将线性的比例制导(PN)/负比例制导(RPN)作为标称指令,将碰撞角约束作为反馈指令,以相对加速度建立微分方程,得到了ACPN、ACRPN制导律.ACPN使用正比例系数,逆轨拦截目标;ACRPN使用负比例系数,顺轨拦截目标.与现有的研究结果进行仿真对比:ACPN具有耗费控制力少、末加速度小的优势;ACRPN的控制力、脱靶量、碰撞角误差较逆轨拦截优势明显.此外,分析了拦截高速目标的捕获区域.结果表明,ACPN比偏置比例导引的捕获区域大.当拦截弹的航迹角小于π/2+λi时(λi为初始视线角),宜采用ACPN(逆轨模式)拦截目标,拦截弹的航迹角大于等于π/2+λi时,宜采用ACRPN(顺轨模式)拦截目标.
In this paper, two trajectory forming guidance laws, ACPN (Angle Control Proportional Navigation) and ACRPN (Angle Control Retro-Proportional Navigation) Negative Proportional Guidance (RPN) is used as a nominal command, and collision angle constraint is used as a feedback command to establish differential equations with relative accelerations. ACPN and ACRPN guidance laws are obtained. ACPN uses a positive proportional coefficient and a target for interception of the orbit; ACRPN uses a negative proportional coefficient, And the objective of interception was intercepted.Comparison with the existing research results: ACPN has the advantages of less controllability and less acceleration at the end.Control power, miss distance and collision angle error of ACRPN are obviously superior to those of the orbit interception.Furthermore, The results show that the ACPN is larger than that of the bias guided acquisition.When the track angle of the interceptor is less than π / 2 + λi (λi is the initial line-of-sight angle), ACPN Mode) to intercept the target, intercept the trajectory of the projectile angle is greater than or equal to π / 2 + λi, ACRPN should be adopted (in-line mode) to intercept the target.