二阶滑模控制算法在滑翔增程弹中的应用研究

滑翔增程是目前采用的较为有效的一种弹箭增程技术,对滑翔增程弹进行控制,就要使弹丸在飞行过程中,能够尽可能地跟踪方案弹道。利用无陀螺捷联惯性测量装置,实时解算弹丸滑翔飞行过程中的实际飞行姿态和弹道参数,与方案弹道中的理想飞行参数进行比较,其偏差信号构成控制指令。将增程弹的弹道分为升弧段和降弧段:升弧段为无控飞行;降弧段采用二阶滑模控制算法设计控制器。通过鸭式舵控制弹丸飞行实现增程,获得了较高的指令跟踪性能,对滑翔增程弹的设计具有一定的参考价值。

Study on Application of Second-order Sliding Mode Control Theory to Gliding Extended Range Projectiles

Gliding flight is efficient to extend the range of a projectile.In the flight process the projectile should track the schemed projectiles as far as possible.The real attitude and trajectory parameters were gotten by gyroscope free strap-down inertial navigation system(GFSINS).The differences between the real and ideal parameters were used to form control commands.The flight trajectory was divided into climbing section and falling section,the former is an uncontrolled flight and the latter is a controlled fl...