BTT导弹的最优导引规律

本文假定自动驾驶仪及弹体的动态特性为一阶环节,考虑了目标机动和导弹的姿态,用工作点线化方法,得到了以脱靶量和控制总能量为最小的二次型性能指标及以法向加速度和滚动角速度为控制变量的BTT导弹的最优导引规律。用简化模型进行了数值仿真计算,结果表明所推导的导引规律,可以拦截机动目标,具有良好的导引精度,有一定的工程实用价值。

OPTIMAL GUIDANCE LAW WIRH FIRST ORDER LAG LOOP FOR A BANK-TO-TURN MISSILE

An optimal guidance law for a BTT missile based on the minimum principle is discussed in this paper. It is assumed that the kinetic characteristics of autopilot and airframe are that of a first order lay loop. The target maneuvering and the attitude of the body are considered. The linear moving equations of the target relative to the missile are obtained by linearzing the state equations at the operating point. The quadratic performance index is the minimum miss distance and controlenergy consumption.Based on the assumptions an optimal intercept guidance law with the pitch acceleration and roll rate as control variables for a BTT missile has been deduced.