一前言利用纯追踪导引方法的制导航弹,要求其速度矢量始终对准目标。为此,需由弹上制导系统测量航弹速度矢量与线之间的夹角,以产生误差信号,进而形成控制信号,控制航弹飞行,以达到速度矢量对准目标的要求。要测得航弹速度矢量与视线之间的夹角,可 A preconception A guided-missile that uses a purely guided approach requires that its velocity vector be always aligned with the target. Therefore, the missile guidance system needs to measure the angle between the velocity vector of the projectile and the line, so as to generate the error signal, and then form the control signal to control the flight of the projectile so as to achieve the goal of the velocity vector alignment. To measure the angle between the launch vector and the line of sight, you can