米波雷达射频数字化接收机抗干扰设计  

Anti-Jamming Design of RF Digitalized Receiver in VHF Radar

作　　者：伍小保[1] 王冰[1] 郑世连[1] 张飞[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088

出　　处：《雷达科学与技术》2015年第2期214-218,共5页Radar Science and Technology

摘　　要：米波雷达由于其频段反隐身以及不在反辐射导弹制导频段内等优势近年来得到了飞速发展和广泛应用,但是由于米波频段内充斥作广播电视等通信干扰信号,因此接收机抗干扰设计是米波雷达面临的一个巨大挑战。文中给出了基于频域的多级滤波技术以及基于射频数字化采样时钟优化选择的接收机外界干扰抑制方法,该方法可有效地抑制米波雷达接收机工作频带外以及频带内的干扰信号,并可应用于米波雷达射频数字化接收机的设计中。VHF radar achieves rapid development and has wide applications in recent years because its frequency band has anti-stealth advantage and is far from the guidance frequency band of anti-radiation missile （ARM）.However,there are many jamming signals in VHF band,such as radio,TV,and communications signals,which becomes a big challenge to the receiver anti-jamming design of the VHF radar.The paper in-troduces receiver anti-jamming design method based on frequency-domain multi-stage filtering technique and RF digitalized receiver sampling frequency optimization selection technique.The method can reject VHF ra-dar out-band jamming and in-band jamming effectively,and can be utilized in the design of VHF radar RF digitalized receiver.

关 键 词：米波雷达 射频数字化接收机 抗干扰 多速率滤波处理 

分 类 号：TN957.5[电子电信—信号与信息处理]