平面阵低旁瓣波束形成方法研究
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摘要
针对实际应用中需要降低旁瓣电平的问题,对阵元数目为324的均匀平面阵列进行波束形成仿真,分析比较了基于LCMV算法的2种低旁瓣波束形成方法的仿真结果。仿真结果表明,2种方法都能够有效地降低旁瓣电平,提高主瓣和副瓣最大电平之比。在主瓣和副瓣最大电平之比相同的情况下,权值迭代方法与协方差矩阵迭代方法相比具有更大的波束增益。在迭代次数相同的情况下,协方差迭代方法具有更高的主瓣和副瓣最大电平之比。
The two low-sidelobe beamforming methods for uniform planar array with 324 array elements are simulated for suppressing the sidelobe level,and the simulation results are analyzed and compared.The simulation results indicate that the two methods can suppress the sidelobe level.The weight iteration method has greater beamforming gain than the covariance matrix iteration method in the case of the same mainlobe-to-sidelobe ratio.The covariance matrix iteration method has higher mainlobe-to-sidelobe ratio in the case of the same number of iterations.
The two low-sidelobe beamforming methods for uniform planar array with 324 array elements are simulated for suppressing the sidelobe level,and the simulation results are analyzed and compared.The simulation results indicate that the two methods can suppress the sidelobe level.The weight iteration method has greater beamforming gain than the covariance matrix iteration method in the case of the same mainlobe-to-sidelobe ratio.The covariance matrix iteration method has higher mainlobe-to-sidelobe ratio in the case of the same number of iterations.
引文
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[4]黄少锋,郑巍.Dolph-Chebushev窗函数天线方向图性能仿真研究[J].仪表技术,2013(7):28-31.
[5]黎雄.FIR数字滤波器的最优化设计及MATLAB实现[J].信息技术,2004,28(10):38-41.
[6]GUY R F E.General Radiation-pattern Synthesis Technique for Array Antennas of Arbitrary Configuration and Element Type[J].IEE Proceedings,Part H,1988,135:241-248.
[7]FLETCHER P N,DEAN M.Least Squares Pattern Synthesis for Conformal Arrays[J].Electronics Letters,December,1998,34(25):2363-2365.
[8]LEE Moon-Sik,KATKOVNIK Vladimir,KIM Yong-Hoon.Minimax Robust M-Beamforming for Radar Array with Antenna Switching[J].IEEE Trans.on Antennas and Propagation,2005,53(8):2549-2557.
[9]张光义.相控阵雷达原理[M].北京:国防工业出版社,2009.
[10]ROBERT J,MAILLOU X.Phased Array Antenna Handbook[M].Boston:Artech House,2005.
[11]WU Jie,CHENG Yujian,FAN Yong.A Wideband HighGain High-Efficiency Hybrid Integrated Plate Array Antenna for V-Band[J].IEEE Transactions on Antennas and Propagation,2015,63(4):1225-1233.
[12]FROAT O L.An Algorithm for Linearly Constrained Adaptive Array Processing[J].Proc.IEEE.1972,60(8):926-935.
[13]廖桂生,保铮,张林让.基于特征结构的自适应波束形成新算法[J].电子学报,1998,26(3):23-26.
[14]NICKEL U.Subarray Configurations for Digital Beamforming with Low Sidelobes and Adaptive Interference Suppression[C]∥IEEE 1995 International Radar Conference,1995:714-719.
[15]SMOLKO J A.Optimization of Pattern Sidelobes in Arrays with Regular Subarray Architectures[J].IEEE 1998 AP-S International Symposium,1998(2):756-759.
[16]吴海洲,王鹏毅,郭肃丽.全空域相控阵测控系统波束形成分析[J].无线电工程,2011,41(11):13-15.
[17]宋广怡.全空域测控系统数字波束形成技术研究[J].无线电工程,2016,46(3):41-44.