MIMO雷达相位编码波形设计与实现  

Phase Encoding Waveform Design and Implementation for MIMO Radar

作　　者：应斌[1] 严济鸿[1] 何子述[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731

出　　处：《雷达科学与技术》2013年第5期511-515,521,共6页Radar Science and Technology

摘　　要：MIMO雷达为了避免通道间的相互干扰,为了获得对多目标检测的高分辨率,因此设计具有低自相关旁瓣峰值和互相关的正交信号集对于实现MIMO雷达系统是至关重要的,正交相位编码信号就具有上述优点。针对MIMO雷达发射波形正交的特点,以二相码为例的设计原理,设计了一种由主控计算机、波形控制模块和数字中频合成模块构成的二相码波形产生器。给出了基于AD9910单频调制方式产生单通道二相码信号的方法和OSK功能产生多通道二相码信号的方法,并给出了测试结果,验证了方案的正确性和可行性。In order to avoid mutual interference meanwhile obtain high-resolution multi-target detection,it is critical for the realization of the MIMO radar system to design cross correlation orthogonal signal with low autocorrelation side-lobe peak.The orthogonal phase encoding signal has all these advantages.The design principles of the orthogonal two-phase encoding signals are introduced.A new realization scheme is presented where multi-channel phase encoding signals generate phase encoding signals.We design a waveform generator composed of a host computer,a waveform control module,and a digital intermediate frequency synthesis module.The method for forming single-channel phase encoding signal based on the single tone mode of AD9910 and the method for forming multi-channel chirp signal based on the OSK function of AD9910 are introduced and the phase encoding signal is analyzed.Finally,the experimental results of the phase encoding signal and the time domain waveform of one channel chirp signal are presented to verify the correctness and feasibility of the method.

关 键 词：多输入多输出(MIMO) 二相编码信号 波形设计 AD9910芯片 

分 类 号：TN957[电子电信—信号与信息处理] TN958.92[电子电信—信息与通信工程]