摘要
讨论了由蚊虫、声音等对天幕靶带来的干扰问题,通过对天幕靶原理分析,证明了弹丸与声波、蚊虫等引起天幕靶输出信号是不同的。在此基础上,提出了一种基于CPLD(Complex Pro-grammable Logic Device)的抗干扰电路,并应用到具体的工程实践中。仿真分析和应用结果表明该电路能有效地抑制声波和蚊虫等对天幕靶带来的干扰,提高了电路的抗干扰能力,保证了测试结果的可靠性和精确性。
In this paper,we briefly discuss some problems brought about by voice an flying insects. Thought the theoretical analysis,we get the conclusion that the voice and bullets insects result in different output of sky screen target.On the basis of this,a resisting disturbance circuit is proposed with CPLD and applied in engineering project.The simulative analysis and practical application demonstrate that disturbance is effectively restricted and the disturbance restriction ability of circuit is greatly improved, which ensures reliable and accurates the metrical result.
出处
《国外电子元器件》
2007年第11期3-6,共4页
International Electronic Elements
关键词
靶场
CPLD
干扰
天幕靶
proving ground
CPLD
disturbance
sky screen
