天幕靶抗蚊虫干扰数字滤波电路设计

Digitalfilter used in skyscreen to resist the interference caused by insects

通过对天幕靶原理的分析，并借助实验，证明了弹丸与蚊虫等低速飞行物所引起的天幕靶模拟输出信号不同，在此基础上，针对天幕靶对慢速干扰信号的响应特点，提出了一种采用数字滤波技术实现抗蚊虫干扰的新方法．

In this paper,we briefly discuss some problems brought about by flying insects,after the theoritical analysis and experimental result,we get the conclusion that the insects and the bullets will result in different analogue outputs of the skyscreen.According to the frequency characteristics of the skyscreen,a new antiinterfence method is proposed based on the digitalfilter.