推力突变对图像跟踪和制导的影响

研究末制导加速飞行段推力突变对图像制导导弹跟踪和制导的影响，分析了推力变化时射手滞后对导引头输出的影响，利用多媒体技术生成的虚拟战场，在不同捕获距离条件下，通过将射手作为实物进行跟踪与制导的半实物仿真，获得因推力突变引起的跟踪误差和比例系数的变化规律，结果表明，通过适当控制末制导加速飞行段推力突变的大小，可以保证跟踪稳定和弹道收敛，并使导弹的机动性大大增加。

Influence of Abrupt Thrust Change on the Image Tracking and Guidance

To study the influence of abrupt thrust change in the terminal accelerating phase on the image tracking and guidance of image guided missiles, an influence caused by shooter's lag on the seeker's output when thrust changes is analyzed.With visual battlefield based on multimedia technology,a man in loop real time simulation of tracking and guidance is taken for various target acquisition distances.Tracking error and guidance coefficient variety caused by abrupt thrust change are obtained.Image tracking and trajectory will be stable and the maneuverability of the missile will be increased greatly if the scope of abrupt thrust change can be controlled properly in the terminal accelerating phase.