利用空时二维编码抑制MIMO雷达波形互相关能量  

Cross correlation assimilation for MIMO radar waveform utilized space-time coding technology

作　　者：曾祥能[1,2] 张永顺[1] 董臻[2] 郭艺夺[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800 [2]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《系统工程与电子技术》2011年第11期2404-2408,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(60736009)资助课题

摘　　要：分析了常规时域编码信号用于多输入多输出(multiple-input multiple-output,MIMO)雷达发射信号无法获得良好的波形分集性能。提出了将空时二维编码技术用于MIMO雷达发射波形设计,理论分析得出该技术能有效抑制波形的互相关能量,提高回波信号的信杂比,可获得良好的波形分集性能,并分析了空时编码技术在实际中应用及其可能发展的几个方向。仿真结果表明了方法的有效性。The normal phase coded signals in time domain is analyzed, the results imply it cannot acquire favorable waveform diversity capability when it is utilized for multiple-input multiple-output （MIMO） radar transmitted signals. The space-time coding （STC） technology is proposed for MIMO radar transmitted waveform design, the theory analysis show that this new technology can assimilate the waveforms＇ cross correlation energy obviously, and the echo sig- nal-to-clutter ratio （SCR） is improved, which makes the new system acquire better waveform diversity capability. Finally, the probable development aspects of the STC and some problem for its application in practical project are discussed. The simulation results verify the proposed method＇s validity.

关 键 词：多输入多输出 空时编码 波形分集 互相关能量 信杂比 

分 类 号：TN96[电子电信—信号与信息处理]