›› 2011, Vol. 24 ›› Issue (7): 133-.

• 论文 • 上一篇    下一篇

基于遗传算法的MIMO雷达正交编码信号波形优化

李晓明,罗钉   

  1. (1.中航雷达与电子设备研究院 航空电子系统射频综合仿真实验室,江苏 无锡 214063;
    2.北京航空航天大学 电子信息工程学院,北京 100083)
  • 出版日期:2011-07-15 发布日期:2011-08-16
  • 作者简介:李晓明(1981-),男,博士,高级工程师。研究方向:MIMO雷达系统设计,动目标检测,空时自适应信号处理,雷达成像。

Orthogonal Code Design Based on the Genetic Algorithm for MIMO Radar

 LI Xiao-Ming, LUO Ding   

  1. (1.Aviation Key Lab.of Science and Technology on AISSS,The Institute of Radar and Electronic Equpment,Wuxi 214063,China;
    2.School of Electronic and Information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China)
  • Online:2011-07-15 Published:2011-08-16

摘要:

MIMO雷达通过发射正交编码信号来获得独立的空间分集增益,改善目标检测识别性能。它对发射信号波形优化设计提出了更高的要求:首先信号为正交信号,以便减低信号间干扰并获得独立的空间分集增益;其次信号为大时宽、宽带宽的脉冲压缩信号,以便解决探测距离和距离分辨率的矛盾。文中根据以上两条要求构造适合的适应度函数,提出了一种基于遗传算法的正交编码信号设计方法,为正交MIMO雷达发射信号进行波形优化,仿真结果和实验分析验证了算法的有效性和可行性。

关键词: MIMO雷达, 波形优化, 遗传算法, 正交编码信号

Abstract:

The MIMO radar can exploit the spatial diversity of target scatterers and improve radar performance.However,the MIMO radar systems require that every radar antenna transmits a distinct signal from a set of orthogonal signals in which any two signals are uncorrelated;meanwhile,every signal has to be wideband impulse signal to achieve the high range resolution.To meet the two requirements,an orthogonal code design method based on the genetic algorithm for MIMO radar systems is presented.The simulation results and performance analysis illustrate that the algorithm proposed is efficient and feasible.

Key words: MIMO radar;waveform optimizing;genetic algorithm;orthogonal code signal

中图分类号: 

  • TN958