取样脉冲宽度对冲激引信回波信噪比的影响  

Effect of Sampling Impulse Width on Impulse Radar Fuze Echo SNR

作　　者：宋宝军[1] 付红卫[1] 王欣[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《探测与控制学报》2012年第5期11-15,共5页Journal of Detection & Control

摘　　要：已有的冲激引信检测能力分析多从常规电路参数展开,难以体现取样脉冲宽度对信号检测的影响。因此,以基于取样积分器的冲激引信为对象,分析了取样脉冲宽度对回波信噪比的影响。分析表明:只有取样脉宽在一定范围内时,才能保证回波有足够的积累,并充分保留信号的高频分量、提高信噪比。仿真表明:适当的取样脉宽可有效改善回波信噪比,提高检测能力。The detection capability investigation of impulse radar fuze usually starts from the conventional circuit parameters,which is hard to indicate the effect of sampling impulse width on signal detecting. Based on sampler and integrator, the effect of width of sampling impulse on echo signal noise ratio was analyzed in this paper. The results indicated that the echo signal could be accumulated sufficiently and the high-frequency elements could also be reserved sufficiently when the width of sampling impulse was restrained within a certain range. The simulation results showed that the approximate width of sampling impulse could improve echo signal and noise ratio effec- tively, and the detection performance could also be enhanced effectively.

关 键 词：冲激引信 取样积分器 取样脉冲宽度 信噪比 

分 类 号：TJ434.1[兵器科学与技术—火炮、自动武器与弹药工程]