华南理工大学学报(自然科学版) ›› 2017, Vol. 45 ›› Issue (1): 53-58.doi: 10.3969/j.issn.1000-565X.2017.01.008

• 电子、通信与自动控制 • 上一篇    下一篇

带指向约束的多目标调零天线

曾浩1,2 周建文1 王秋实1 王洪良1 何海丹2   

  1. 1. 重庆大学 通信工程学院,重庆 400044; 2. 西南电子技术研究所,四川 成都 610036
  • 收稿日期:2016-04-11 修回日期:2016-06-27 出版日期:2017-01-25 发布日期:2016-12-01
  • 通信作者: 曾浩( 1977-) ,男,教授,主要从事抗干扰通信技术研究. E-mail:haoz@cqu.edu.cn
  • 作者简介:曾浩( 1977-) ,男,教授,主要从事抗干扰通信技术研究.
  • 基金资助:

    重庆市自然科学基金重点资助项目( cstc2013JJB40005) ; 重庆大学中央高校基本科研业务费专项资金资助项目( 106112016CDJZR165508)

Multiple-Objects Nulling Antenna with Directional Constraint

ZENG Hao1,2 ZHOU Jian-wen1 WANG Qiu-shi1 WANG Hong-liang1 HE Hai-dan2   

  1. 1.College of Communication Engineering,Chongqing University,Chongqing 400044,China; 2.Southwest Electronic Technology Research Institute,Chengdu 610036,Sichuan,China
  • Received:2016-04-11 Revised:2016-06-27 Online:2017-01-25 Published:2016-12-01
  • Contact: 曾浩( 1977-) ,男,教授,主要从事抗干扰通信技术研究. E-mail:haoz@cqu.edu.cn
  • About author:曾浩( 1977-) ,男,教授,主要从事抗干扰通信技术研究.
  • Supported by:
    Supported by the Key Project of the Natural Science Foundation of Chongqing( cstc2013jjb40005)

摘要: 在卫星导航接收机中,传统调零天线无法形成对卫星信号的主瓣指向.为了能同时形成多个天线方向图主瓣,并分别对准不同卫星信号,从而提高阵列增益,文中引入导
向约束条件,采用直接矩阵求逆方法求解每个卫星信号的最优权矢量解,并完成波束合成; 分析了文中算法的运算量,给出了阵列增益的解析表达式.研究表明,文中算法不仅抑制了外部干扰,而且克服了卫星信号间的相互干扰,形成了对每个卫星信号的主瓣指向,提高了输出信噪比.方向图和期望信号输出信干噪比的仿真结果验证了该算法的有效性.

关键词: 天线阵列, 干扰抑制, 最优化

Abstract:

In satellite navigation receivers,traditional nulling antennas cannot form the main lobe of satellite signal points.In order to form a plurality of main lobes of an antenna corresponding to different satellite signals and thus to improve array gains,an orientation constraint condition is introduced into this paper,and direct matrix inversion is adopted to solve the optimal weight vectors of each satellite signal.Moreover,a beamforming is completed.Then,the computation amount of the proposed algorithm is discussed,and an analytical expression of the array gains is proposed.It is found that this algorithm not only suppresses the external disturbance but also overcomes the mutual interference between satellite signals,and it causes the main lobes of each satellite signal to form,thus improving output SNR.In addition,the effectiveness of the proposed algorithm is demonstrated by the simulation results of pattern and output SINR.

Key words: antenna arrays, interference suppression, optimization

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