电光与控制, 2009, 16 (4): 82, 网络出版: 2010-04-01  

多元红外导引头预处理陷波电路的设计与仿真

Design and Simulation on Band-Stop Filter of Preprocessing Circuit for Multi-Element IR Seeker
作者单位
中国空空导弹研究院,河南 洛阳 471009
摘要
多元红外导引头为了对抗云团等大背景干扰,在预处理电路中加入了陷波器。利用Matlab进行仿真,分析了陷波器带宽对抗人工干扰和预处理电路时间响应常数造成的影响和加入陷波器后的使用效果。仿真结果表明陷波器的带宽越窄会使整个电路的时间常数变长,带宽越宽会使抗人工干扰时信号下沉。根据仿真结果设计了预处理陷波电路,经内外场试验该电路在抗云团等大背景干扰时,大大降低了背景噪声的幅值,提高了信噪比,在目标脉冲信号提取及抗人工干扰性能方面表现出了良好的性能。
Abstract
Band-stop filter was used in preprocessing circuit for multi-element IR missile seeker in order to restrain heavy cloud clutter background. The effect of the bandwidth on response time and anti-artificial countermeasure was simulated based on Matlab/Simulink. Simulation result showed that narrow bandwidth could lengthen the whole circuit response time and broad bandwidth could make signal wave go down in anti-artifical countermeasure. Based the results of the simulation,the preprocessing trap filter was designed. The circuit worked well on signal detection and anti-artificial countermeasure in laboratory and field experiments.

李红波, 高淑慧, 李世杰. 多元红外导引头预处理陷波电路的设计与仿真[J]. 电光与控制, 2009, 16(4): 82. LI Hongbo, GAO Shuhui, LI Shijie. Design and Simulation on Band-Stop Filter of Preprocessing Circuit for Multi-Element IR Seeker[J]. Electronics Optics & Control, 2009, 16(4): 82.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!