基于chirp信号的宽频带相控阵雷达数字补偿技术  

Digital Compensation Technology of Wideband Phased Array Radar Based on Chirp Signal

作　　者：刘海波[1] 牛阳[1] 任晓远[1] 王珣[1] LIU Hai-bo NIU Yang REN Xiao-yuan WANG Xun(School of Information and Electronic, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学信息与电子学院,北京100081

出　　处：《北京理工大学学报》2016年第9期966-970,共5页Transactions of Beijing Institute of Technology

摘　　要：针对宽频带大口径相控阵雷达孔径渡越时间问题,提出了一种直接宽带数字中频的宽频带相控阵雷达实现框架,并基于chirp信号提出了使用数字去斜技术补偿孔径渡越时间,使用数字本振相位调整补偿射频通道一致性的信号处理方法.结合实际硬件系统验证了方法的有效性和工程可实现性,结果表明本文方法可有效补偿孔径渡越时间和射频通道的不一致性.A wideband PAR （phased array radar） implementation framework was proposed based on wide band digital intermediate frequency to solve aperture full time problem. A method was presented to compensate the aperture full time by digital stretch processing of chirp signal. A compensation approach was also put forward for RF （radio frequency） channels phase consistency with phase adjustment of digital oscillator. Experiment results based on hardware system indicate that the method is effective and engineering realizable, it can effectively compensate the inconsistency of aperture fulltime and RF channels.

关 键 词：宽频带相控阵雷达 孔径渡越时间 射频通道不一致性 数字补偿 

分 类 号：TN957.5[电子电信—信号与信息处理]