Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (11): 2404-2408.doi: 10.3969/j.issn.1001-506X.2011.11.11

• 传感器与信号处理 • 上一篇    下一篇

利用空时二维编码抑制MIMO雷达波形互相关能量

曾祥能1,2, 张永顺1, 董臻2, 郭艺夺1   

  1. 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
  • 出版日期:2011-11-25 发布日期:2010-01-03

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

ZENG Xiang-neng1,2, ZHANG Yong-shun1, DONG Zhen2, GUO Yi-duo1   

  1. 1. Missile Institute, Air Force Engineering University, Sanyuan 713800, China; 2. School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Online:2011-11-25 Published:2010-01-03

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。

Abstract:

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 signal-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.

中图分类号: