基于广义旁瓣对消器的Laguerre宽带波束形成

刘成城; 刘亚奇; 赵拥军; 杨静

doi:10.12000/JR14104

基于广义旁瓣对消器的Laguerre宽带波束形成

DOI: 10.12000/JR14104

1.
(信息工程大学导航与空天目标工程学院郑州 450001)
2.
(72495 部队通信科郑州 450001)

基金项目:

国家自然科学基金(41301481)和国家863 计划(2011AA7031015)资助课题

详细信息

作者简介:
刘成城(1986-),男,江苏省东台市人,信息工程大学博士研究生,主要从事阵列信号处理、电子对抗等方面的研究工作.E-mail:luckylcc079@126.com刘亚奇(1990-),男,河南省商丘市人,信息工程大学硕士研究生,主要从事阵列信号处理方面的研究工作.E-mail:skylar1235@126.com赵拥军(1964-),男,河南省新乡市人,信息工程大学教授,博士生导师,《电子测量与仪器学报》编委,中国电子学会电子测量与仪器分会委员,中国电子学会高级会员,中国图像图形学会会员,主要从事雷达与信息信号处理、空间目标探测与定位、电子对抗等方面的研究工作.E-mail:zhaoyjzz@163.com杨静(1986-),女,河南省南阳市人,信息工程大学硕士,助理工程师,主要从事通信与信息信号处理、电子对抗等方面的研究工作.E-mail:yangjing1028@126.com

通讯作者:
刘成城lucklcc079@126.com

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- 被引次数: 0
出版历程
- 收稿日期: 2014-08-07
- 修回日期: 2014-11-04
- 网络出版日期: 2015-06-28

Laguerre Wideband Beamforming Algorithm Based on Generalized Sidelobe Canceller

1.
(School of Navigation and Aerospace Object Engineering, Information Engineering University, Zhengzhou 450001, China)
2.
(Automation Station, Unit 72495, Zhengzhou 450001, China)

摘要

摘要: 基于Frost 结构的Laguerre 宽带波束形成器可以获得比FIR 宽带波束形成器和IIR 宽带波束形成器更好的性能,但其需要单极点的最优求解过程,存在计算复杂度较高及收敛速度较慢等问题.该文提出一种基于广义旁瓣对消器(Generalized Sidelobe Canceller, GSC)的Laguerre 滤波器宽带波束形成算法.该算法首先建立基于GSC结构的Laguerre 宽带波束形成器模型,然后利用最小二乘方法给出一种低复杂度的极点求解方法,最后利用归一化最小均方根误差方法实现宽带波束形成.仿真实验及理论分析表明,该方法无需基于Frost 结构的Laguerre 宽带波束形成器单极点最优求解过程,在保证算法较高的输出信干噪比的同时,减少了计算复杂度,提高了收敛速度.
- 宽带波束形成 /
- Laguerre 滤波器 /
- 广义旁瓣对消器 /
- 最小二乘 /
- 归一化最小均方根误差
Abstract: Compared with conventional FIR and IIR broadband beamformers, the Laguerre broadband beamformer based on the Frost structure can achieve perfect performance. However, it needs the optimal solution of the solo pole, and it suffers high computational complexity and slow convergence speed. To address these problems, a novel Laguerre wideband beamforming algorithm based on GSC is proposed. A novel solution of the poles based on the least square method with low computational complexity is presented on the basis of the GSC structure of a Laguerre wideband beamformer. Thereafter, the broadband beamformer is achieved using the normalized LMS method. The simulations illustrate that without the optimal process of adjusting the solo pole in the Laguerre broadband beamformer based on the Frost structure, the proposed method can ensure high output SINR, reduce the computational complexity, and improve the convergence speed.
- Wideband beamforming /
- Laguerre filter /
- Generalized sidelobe canceller /
- Least square /
- Normalized least mean square

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参考文献(15)

[1]	Liu W and Weiss S. Wideband Beamforming: Concepts and Techniques[M]. Chichester, UK, John Wiley Sons, 2010: 1-50.
[2]	范展, 梁国龙. 基于凸优化的最小旁瓣恒定束宽时域宽带波束形成[J]. 电子学报, 2013, 41(5): 943-949. Fan Zhan and Liang Guo-long. Broadband beamforming with minimum sidelobe and constant beamwidth based on convex optimization[J]. Acta Electronica Sinica, 2013, 41(5): 943-949.
[3]	Zhao Y, Liu W, and Langley R J. An application of the least squares approach to fixed beamformer design with frequency invariant vonstraints[J]. IET Signal Processing, 2011, 5(3): 281-291.
[4]	Frost III O L. An algorithm for linearly constrained adaptive array processing[J]. Proceedings of the IEEE, 1972, 60(8): 926-935.
[5]	Griffiths L J and Jim C W. An alternative approach to linearly constrained adaptive beamforming[J]. IEEE Transactions on Antennas and Propagation, 1982, 30(1): 27-34.
[6]	Vook F W and Compton R T. Bandwidth performance of linear adaptive arrays with tapped delay-line processing[J]. IEEE Transactions on Aerospace and Electronic Systems, 1992, 28(3): 901-908.
[7]	Sekiguchi T and Karasawa Y. Wideband beamspace adaptive array utilizing FIR fan filters for multibeam forming[J]. IEEE Transactions on Signal Processing, 2000, 48(1): 277-284.
[8]	Liu W, Weiss S, and Hanzo L. A subband-selective broadband GSC with cosine-modulated blocking matrix[J]. IEEE Transactions on Antennas and Propagation, 2004, 52(3): 813-820.
[9]	Liu W, Weiss S, and Hanzo L. A generalized sidelobe canceller employing two-dimensional frequency invariant filters[J]. IEEE Transactions on Antennas and Propagation, 2005, 53(7): 2339-2343.
[10]	Gooch R P and Shynk J J. Wideband adaptive array processing using pole-zero digital filters[J]. IEEE Transactions on Antennas and Propagation, 1986, 34(3): 355-367.
[11]	Adkins C N and Turtora J J. A broadband beam former with pole-zero unconstrained jammer rejection in linear arrays[J]. IEEE Transactions on Signal Processing, 1996, 44(2): 438-441.
[12]	Ghavami M and Kohno R. Recursive fan filters for a broadband partially adaptive antenna[J]. IEEE Transactions on Communications, 2000, 48(2): 185-188.
[13]	Duan H, Ng B P, and See C N. A new broadband beamformer using IIR filters[J]. IEEE Signal Processing Letter, 2005, 12(11): 776-779.
[14]	Duan H, Ng B P, See C N, et al.. Broadband beamforming using TDL-form IIR filters[J]. IEEE Transactions on Signal Processing, 2007, 55(3): 990-1003.
[15]	Seydnejad S R and Ebrahimi R. Broadband beamforming using Laguerre filters[J]. Signal Processing, 2012, 92(1): 1093-1100.