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[ "杜永兴(1980-),男,博士,内蒙古科技大学信息工程学院副教授,主要研究方向为微波技术与天线及数字信号处理等。" ]
[ "马新(1991-),女,内蒙古科技大学信息工程学院硕士生,主要研究方向为波束合成技术和无线光通信技术。" ]
[ "李宝山(1965-),男,内蒙古科技大学信息工程学院教授,主要研究方向为射频识别系统及应用。" ]
[ "秦岭(1979-),女,博士,内蒙古科技大学信息工程学院副教授,主要研究方向为无线通信系统。" ]
网络出版日期:2018-03,
纸质出版日期:2018-03-20
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杜永兴, 马新, 李宝山, 等. 一种加权稀疏约束的Capon波束成形算法[J]. 电信科学, 2018,34(3):112-118.
Yongxin DU, Xin MA, Baoshan LI, et al. A weighted sparse constraint Capon beamforming algorithm[J]. Telecommunications science, 2018, 34(3): 112-118.
杜永兴, 马新, 李宝山, 等. 一种加权稀疏约束的Capon波束成形算法[J]. 电信科学, 2018,34(3):112-118. DOI: 10.11959/j.issn.1000-0801.2018019.
Yongxin DU, Xin MA, Baoshan LI, et al. A weighted sparse constraint Capon beamforming algorithm[J]. Telecommunications science, 2018, 34(3): 112-118. DOI: 10.11959/j.issn.1000-0801.2018019.
针对Capon波束成形器旁瓣较高及零陷不深的问题,对降低旁瓣及零陷的方法进行了研究,提出了一种加权稀疏约束Capon波束成形算法。首先利用旁瓣阵列流型矩阵与协方差矩阵的相关运算,得到干扰和噪声能量在不同方向的粗略后验分布情况,其次根据得到的结果对不同的方向加权不同的值,并对干扰进行约束。仿真结果表明,该算法有效降低了波束图的旁瓣及零陷深度,增加了抑制噪声及抗干扰的能力,且在期望信号误差和阵列误差情况下均保持较好的顽健性。
Aiming at the problem of high sidelobes and nulls was not deep of Capon beamformer
the methods of reducing sidelobes and nulls were studied
a weighted sparse constraint Capon beamforming algorithm was proposed.Firstly
using the correlation operation of sidelobe array manifold matrix and the covariance matrix obtained the interference and noise energy were roughly posterior distribution in different directions.Then
different values were weighted in different directions according to the results
and restrained the interference.Simulation results show that the approach can reduce the sidelobes and deepen the null to fall the depth of the beam pattern
and improve the ability of suppress noise and interference.The proposed method is robust to both expected and array errors.
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