X波段雷达灵敏度测试信号源的设计与实现  

Design and Realization of X-Band Signal Source for Testing Radar's Sensitivity

作　　者：吕波[1] 宋瑶[1] 朱四红[2] 周长友[2] 

机构地区：[1]军械工程学院光学与电子工程系 [2]中国人民解放军75124部队

出　　处：《测控技术》2012年第3期15-18,23,共5页Measurement & Control Technology

摘　　要：针对基层部队雷达性能指标的测试需求,设计了一种小型化、数字式雷达灵敏度测试信号源。该信号源通过数字接口接收上位机的频率、功率和脉冲调制控制命令,其频率带宽达2000 MHz,频率间隔1 MHz,功率变化30 dB,脉冲宽度最小低至纳秒级。给出了信号源硬件电路和软件程序的具体设计步骤,通过原理样机的测试验证了信号源的可行性。In order to meet the radar testing need of troops at the grass-roots level,a small digital signal source for radar＇s sensitivity measurement was designed.This device can receive upper computer＇s control codes of frequency,power and pulse modulation through digital interface.It can realize frequency bandwidth 2000 MHz,frequency space 1 MHz,power attenuation 30 dB and nanosecond pulse width.Design steps for the signal source＇s hardware and software are given,and test results of the prototype verify its practicability.

关 键 词：接收机灵敏度 信号源 检测设备 锁相环 

分 类 号：TN974[电子电信—信号与信息处理]