一种测量机载箔条云RCS时间特性的新方法  

A New Method for Measuring the Time Property of the Airborne Chaff Cloud RCS

作　　者：梅永华[1] 许金萍[1] 刘洪亮[1] 杨沛[1] 

机构地区：[1]中国人民解放军63880部队1分队

出　　处：《电子科技》2009年第6期64-66,87,共4页Electronic Science and Technology

摘　　要：针对目前国内外场测量机载箔条云RCS时,在载机弹出箔条弹至箔条云充分展开这段时间内,测量设备无法将飞机的回波与箔条云的回波进行有效分离,导致测量精度不高的问题。文中在总结已有的国内外对机载箔条云RCS测量方法的基础上,根据雷达多普勒效应,速度不同的目标,在频谱中产生不同频移原理,提出了在外场测量机载箔条云RCS的新方法——频谱法。仿真结果说明,此方法可以更精确地测量机载箔条云的RCS时间特性。Measurement precision is low when the airborne chaff cloud RCS is measured in the domestic outfield because measuring equipment cant effectively separate the chaff cloud＇s echo from the aeroplane＇s echo in the time from when the chaff bombs shoot out the aeroplane to when the chaff cloud sufficiently outspreads. On the basis of a summery of the measuring methods of the airborne chaff cloud RCS both home and abroad, the paper brings forward a new method, the spectrum method. This method is based on the effect of Doppler, whose principle is that targets with different speeds will bring different frequency move. Simulation results show that this method has higher measurement precision in measuring the time property of the airborne chaff cloud RCS.

关 键 词：箔条云 雷达横截面 频谱法 

分 类 号：TN973[电子电信—信号与信息处理]