PD引信地杂波回波建模与仿真  

Ground Clutter Echo Modeling and Simulation on PD Fuze

作　　者：吴剑锋[1] 何广军[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《现代防御技术》2009年第1期43-47,51,共6页Modern Defence Technology

摘　　要：由于雷达引信载体运动的高速性,引信工作的近程性,使得引信在低空作战时,地杂波信号极易诱使引信早炸。首先介绍了地杂波的散射特性,然后建立了基于网格映象法的地杂波回波信号的仿真模型,在这个基础上分析了引信地杂波信号特性。研究结果可用于PD引信抗地杂波干扰能力的预测和评估。Because of the high moving speed of radar fuze carrier and the short range it works, when the low latitude fights in fuze, ground clutter is more apt to make the fuze burst ahead of the time. Firstly, the scattering characteristic of ground clutter is introduced. Secondly, a calculation model of the ground clutter echo is set up based on the net image method. On this basis, analyze the characteristic of the video signal of the ground clutter received by the fuze. The result of study can used in PD fuze resist ground clutter interfere with prediction and assessment of ability.

关 键 词：脉冲多普勒引信 地杂波 网格映象法 数字仿真 

分 类 号：TN957.51[电子电信—信号与信息处理] TP391.9[电子电信—信息与通信工程]