系统工程与电子技术

• 传感器与信号处理 • 上一篇    下一篇

分布式OFDM-MIMO雷达非相参积累目标检测方法

谷文堃, 王党卫, 马晓岩, 郑岱堃   

  1. (空军预警学院, 湖北 武汉 430019)
  • 出版日期:2015-09-25 发布日期:2010-01-03

Incoherent integration detection using distributed OFDMMIMO radar

GU Wenkun, WANG Dangwei, MA Xiaoyan, ZHENG Daikun   


  1. (Air Force Early Warning Academy, Wuhan 430019, China)
  • Online:2015-09-25 Published:2010-01-03

摘要:

针对目标雷达截面积(radar crosssection, RCS)空间起伏,不易于常规雷达进行长时间积累检测的问题,结合正交频分复用(orthogonal frequencydivision multiplexing, OFDM)波形与分布式多输入多输出(multiple input multipleoutput, MIMO)雷达的特点,提出了一种基于分布式OFDMMIMO雷达的非相参积累目标检测方法。该方法使获得的多路回波信号短时间内非相参并行处理,削弱了长时间积累、复杂的相位补偿以及RCS快起伏对检测性能的影响,有效实现了多个目标的积累和检测。仿真结果证实了提出方法的有效性。

Abstract:

t is difficult for the traditional radar to detect targets with radar crosssection (RCS) fluctuation via the longtime coherent integration. Combining the characteristics of multipleinput multipleoutput (MIMO) radar and orthogonal frequencydivision multiplexing (OFDM) waveform, an incoherent integration detection method is proposed using distributed OFDMMIMO radar. The parallel incoherent processing of the multichannel echo in a short time is exploited to weaken the effect caused by the longtime integration, the complex phase compensation and the fast 〖JP+1〗RCS fluctuation. Then, the multitarget integration and detection are realized effectively. Simulation results verify the superiority of the detection method using the distributed OFDMMIMO radar.