弹载脉冲多普勒雷达目标模拟器宽带频率跟踪方法设计  

Design of Wideband Frequency Seeking Method of a Pulse Doppler Radar Simulator in a Missile

作　　者：陆锦辉[1] 

机构地区：[1]南京理工大学电子工程系,江苏南京210094

出　　处：《兵工学报》2005年第3期330-334,共5页Acta Armamentarii

摘　　要：本文讨论的弹载脉冲多普勒雷达目标模拟器主要是在外场静态联试时为雷达提供模拟动态目标回波信号,以检查其截获跟踪性能。该弹载雷达模拟器采用二次变频、锁相环载波提取和单边带调制等技术实现了系统设计要求,能快速自动锁定较大范围内离散的雷达工作频率,并将通过多普勒调制和距离延时的模拟目标回波发送回雷达接收机。本文从系统原理、程序设计等方面讨论了宽带频率跟踪方法的设计和实现,试验表明该方法在工程上可行。The pulse Doppler radar simulator discussed is used to provide radar echo signals and checkout the performance of radar in an open condition. The design of the simulator makes use of the techniques of twice frequency conversion and carrier extraction based on locked phase loop and single sideband modulation. It can automatically and quickly lock the radar running frequency in a wide range, and resend the simulated echo signals. The design and implementation of frequency seeking from the system principle and program design were discussed chiefly in the paper. The test shows that the method is feasible in engineering.

关 键 词：雷达工程 脉冲多普勒雷达 模拟器 频率跟踪 

分 类 号：TN955[电子电信—信号与信息处理]