滑动运行继电式激光制导系统

A LASER GUIDANCESYSTEM OF RELAY CONTROL WITH SLIDINGMODE

继电控制式激光制导系统的简单性使它具有高可靠性、低成本等优点。而系统自振使得弹着点散布大，降低了制导精度。将滑动运动模态引人系统，使其变成滑动运行的继电控制方式。结果，弹着点散布压缩，制导精度提高，而且保持了原系统的优点。介绍了该系统的组成，分析了提高制导精度的原理，并提供一些仿真结果。

The simplicity of laser guidance systems which operate on Bang-Bang control pattern makes them have high reliability and low cost.However,the resonance of the system spreads the distribution of hitting points of the missile,hence the guidance accuracy is reduced. Introducing sliding mode into the system changes it to a sliding relay-control guidance system. So,the distrf bution is significantly compressed the guidance accuracy is enhanced,and the advantages of this kind of laser guidanee system are retained.The composition of the systems is presented,the phi-losophy of enhancing the guidance accuracy is analysed,and some simulation resuIts are shown.