摘要
针对外场雷达目标散射特性测试的需要,设计并实现了一种外场测量雷达。该雷达可在外场以频分的方式在2个固定频段上同时进行雷达散射截面的测量,以及在转台的配合下进行二维成像测试。采用脉间变频技术,避免了线形扫频方法非线性引起的问题,通过现场可编程器件的使用,可灵活设置调制脉冲和硬件距离门,最大限度地消除外场虚假信号和背景杂波的影响,可采用校准支路实时对正交解调的误差进行校准。
To meet the requirements of the field radar target scattering measurement,a 2-channel instrumentation radar based on the pulse-to-pulse frequency shifting technique was designed and realized.The radar can perform radar-cross section (RCS)measurement on two fixed frequency bands simultaneously and test the 2-demeusional imaging in cooperation with a rotation platform.The pulse-to-pulse frequency shifting technique avoided problems caused by non-linear error of the linear frequency mod- ulation method.To furt...
出处
《现代雷达》
CSCD
北大核心
2008年第5期116-118,共3页
Modern Radar
关键词
测量雷达
脉间变频
雷达散射截面
二维成像
instrumentation radar
pulse-to-pulse frequency shifting
RCS
2-D imaging
