一种带有前级功控的二次雷达发射机设计  

Design of Secondary Radar Transmitter with Pre-stage Power Control Function

作　　者：王玉柱 滕新友 牟光红 邰战雄 任业富 WANG Yuzhu;TENG Xinyou;MOU Guanghong;TAI Zhanxiong;REN Yefu(Sichuan Jiuzhou Aerocont Technologies Co.,Ltd.,Mianyang 621000,China)

机构地区：[1]四川九洲空管科技有限责任公司,四川绵阳621000

出　　处：《现代信息科技》2023年第1期44-47,共4页Modern Information Technology

摘　　要：二次雷达在不同的使用环境下,周围的天然地形或人造建筑会对其发射的电磁波形成遮挡,导致反射信号过大,对二次雷达造成多径干扰,影响雷达的正常工作。鉴于此,该文设计一种带有前级功控的发射机,该发射机的饱和输出功率可达800W,可实现3dB衰减步进,0~15d B的衰减范围,当天线辐射路径中有遮挡物时,前级功控会控制发射机的输出功率,减小雷达的反射信号,从而解决多径干扰的问题。In different use environments,the natural terrain or man-made buildings around the secondary radar will block the electromagnetic waves it emits,resulting in excessive reflected signals,causing multipath interference to the secondary radar and affecting the normal operation of the radar.In view of this,this paper designs a transmitter with front-stage power control function.The saturated output power of the transmitter can reach 800 W,which can achieve 3 dB attenuation step and 0~15 dB attenuation range.When there is an obstruction in the antenna radiation path,the front power control will control the output power of the transmitter,reduce the radar reflection signal,and thus solve the problem of multipath interference.

关 键 词：二次雷达 发射机 前级功控 

分 类 号：TN95[电子电信—信号与信息处理]