电子学报 ›› 2012, Vol. 40 ›› Issue (12): 2519-2524.

• 学术论文 • 上一篇    下一篇

一种高能量发射效率MIMO天波雷达方案

赵志国, 陈建文, 鲍拯   

  1. 空军预警学院军队重点实验室,湖北武汉 430019
  • 收稿日期:2012-02-21 修回日期:2012-07-21 出版日期:2012-12-25 发布日期:2012-12-25
  • 作者简介:赵志国 男,1982年2月出生于河北省迁安市.博士研究生.主要研究方向为超视距雷达信号处理,自适应信号处理等. E-mail:afrazzzz@yahoo.com.cn 陈建文 男,1964年生于湖北省武汉市.教授,博士生导师,IEEE会员,CIE高级会员.主要研究领域:机载预警雷达信号处理,超视距雷达信号处理,阵列信号处理,目标识别等. E-mail:cjwll8217@vip.sina.com 鲍 拯 男,1977年生于湖北省汉川市.博士,讲师.主要研究领域:现代雷达信号处理,阵列信号处理,超视距雷达信号处理等. E-mail:yy19770801@yahoo.cn
  • 基金资助:
    国家自然科学基金(No.61072132)

A MIMO Skywave Radar Scheme with High Transmitting Power Efficiency

ZHAO Zhi-guo, CHEN Jian-wen, BAO Zheng   

  1. Key Research Laboratory of Wuhan Early Warning Institute,Wuhan,Hubei 430019,China
  • Received:2012-02-21 Revised:2012-07-21 Online:2012-12-25 Published:2012-12-25

摘要: 为提高阵元空间多输入多输出(Multiple-Input Multiple-Output,MIMO)天波超视距雷达(Over-The-Horizon Radar,OTHR)发射天线辐射能量效率,提出了降维分时波束空间MIMO-OTHR方案,并在该方案下实现了发射自适应波束形成.该方案降低了不可见波束区发射能量,无方向图起伏过大问题,发射自由度降低较少,适合在多径杂波个数较多的背景下应用,且只需要简单的波束控制,易于工程实现.理论分析和仿真实验验证了该方案的有效性.

关键词: 新一代天波超视距雷达, 能量发射效率, MIMO雷达, 降维分时波束空间

Abstract: To enhance transmitting power efficiency in element-space multiple-input multiple-output (MIMO) skywave over-the-horizon radars (OTHR),a reduced dimension time diverse beamspace MIMO-OTHR scheme is proposed,and transmitting adaptive digital beamforming is realized under the scheme.With the new scheme,the stored power in invisible beamspace is decreased without acute fluctuations in beam pattern,and little reduction of degree of freedom makes MIMO-OTHR be able to work under the situation that the number of multipath clutters is large.The new scheme needs only beam direction control,which simplifies the MIMO realization in OTHR.Theoretical analyses and simulation results both show that the presented scheme is effective.

Key words: new generation skywave over-the-horizon radar (OTHR), transmitting power efficiency, multiple-input multiple-output (MIMO) radar, reduced dimensions time diverse beamspace

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