动能拦截器弹-目相对距离的解析测量方法

Analytic Measurement Method for Missile-Target Relative Distance of Kinetic Kill Vehicles

弹-目相对距离的求解及精度分析是实现精确制导的前提,本文提出一种求取动能拦截器弹-目相对距离的解析测量方法.通过几何关系列出视线坐标系下的弹-目相对距离方程;定量研究了弹-目相对距离的可观性;求取出具有测量误差时的弹-目相对距离的误差界.仿真结果表明:求解出的弹-目相对距离误差精度与可靠性较高,能够满足末制导要求.

Considering the accurate missile-target relative distance is the prerequisite of precise guidance, we proposed an analytic measurement method which can measure the missile-target relative distance of the kinetic kill vehicles. We considered the following problems. Firstly, we derived the equation of missile-target relative distance. Secondly, we studied the observability of the missile-target relative distance on measurement. Finally, we got different error bounds with different initial conditions. The simulation shows that the measurement method of missile-target relative distance has high accuracy and high reliability which meets the requirements of the terminal guidance.