干扰补偿式预测拦截制导法

A NEW PREDICTIVE INTERCEPT LOW OF DISTURBANCE COMPENSATION

针对比例导引律及其许多改进方法不能预测大机动目标因机动飞行引起的方位变化的缺陷，本文研究了一种新型的对干扰进行补偿的预测拦截方法．通过介绍初始扰动和常驻外扰动的估算方法并利用不变性原理对其进行补偿，视线角速度基本稳定在零点附近，达到了预测拦截、提高攻击大机动目标制导精度的目的．

In order to make up the weakness that the Proportional Navigation Guidance (PNG) and its improved guidance laws can't predictively intercept the position change caused by target's high maneuver. a new predictive intercept guidance law which compensates the disturbace is studied. This paper introduces the initial disturbance and the estimation method of existed external disturbance in a navigation system and compensating it through the principle of in-variability. The simulation results show that the LOS angle rate is almost kept at a low va-lue, and the purposes of predictive intercept and the improvement of guidance precision have been reached in attacking highly maneuvering targets.