多采样率在某新型兵器控制系统中的探索研究

Research on New Weapon Control System Based on Multi-sampling

多采样率数字控制系统是指含有2个或2个以上不同采样周期的采样器和保持器的数字控制系统。采样时间是其重要参数,决定了系统的控制精度。文中应用等效的思想对该兵器控制系统进行性能探索研究,采用假想开关法,在慢速率采样器后人为地引入快速率虚拟采样器,把低采样信号变为高采样频率信号。系统的等效变换首先需要在低采样频率中引入数字保持器,然后进行高频率采样,以使同一采样频率的信号互相连接或综合,最后延伸补助环节并构成系统的补助通道。通过设置2个和4个采样开关进行实验,发现多采样率使系统性能得到优化的同时却出现了个别的振荡点。解决方法就是重新对系统进行零点配置。

In this paper, idea of equivalent is used to explore and research the performance of the new weapon control system, adopting hypothesis switches, the speediness dummy sampling appliances are followed the slow switches, let the slow sampling signals become high sampling signals. First of all, we need to import numeric holding appliances in the slow sampling appliances, then carry out the high frequency sampling,thus, the same sampling signals can joint or synthesize each other, and make up of assistance channels at last.By setting two and four sampling switches in the experiment, it is found that the performance of the system becomes better on the one hand, but on the other hand, some surging points appear. The solving method is configuring the zero and pole points of the system over again.