均匀邻接子阵的栅瓣抑制

上海交通大学学报（自然版） ›› 2011, Vol. 45 ›› Issue (03): 340-0344.

• 无线电电子学、电信技术 • 上一篇下一篇

均匀邻接子阵的栅瓣抑制

陈碧仙, 金荣洪, 耿军平, 梁仙灵

(上海交通大学电子信息与电气工程学院，上海 200240)

收稿日期:2009-11-30 出版日期:2011-03-30 发布日期:2011-03-30
基金资助:
国家自然科学基金委创新研究群体基金项目(60821062)，国家重点基础研究发展规划(973)项目 (2009CB320205)

Grating Lobe Suppression for Contiguous Subarray with Uniform Structure

CHEN Bi-Xian, JIN Rong-Hong, GENG Jun-Ping, LIANG Xian-Ling

(School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2009-11-30 Online:2011-03-30 Published:2011-03-30

摘要/Abstract

摘要： 为了抑制均匀子阵在扫描过程中可能出现的栅瓣，提出了一种基于分区优化的栅瓣抑制方法，并探讨了分区原则及基于粒子群优化算法的栅瓣抑制优化方法，以含3个4单元子阵的阵列进行仿真.结果表明，每个扫描区间内阵列旁瓣电平均低于-22 dB.该方法应用于数字多波束形成时同样有效.

关键词: , 波束扫描；均匀子阵；扫描区域划分；粒子群优化算法；波束形成

Abstract: When large scale arrays are divided into subarrays of equal sizes a difficulty with grating lobes is encountered during scanning. The condition of producing the grating lobe was discussed at first, and on this basis, a new method of beam scanning at uniform subarray level was proposed for the purpose of reducing the grating lobe by dividing the scanning region. The fundamental rules of scanning regional division and how to optimize the weights of all angles in each scanning region at elements level and subarray level by particle swarm optimization (PSO) were also discussed. As an example, an array of three subarray with four elements was simulated and the results show that the maximum sidelobe level can be reduced to -22 dB in each scanning region. This approach also can be used for multibeam forming.

Key words: beam scanning, uniform subarray, scanning regional division, particle swarm optimization(PSO), beamforming

中图分类号:

陈碧仙, 金荣洪, 耿军平, 梁仙灵. 均匀邻接子阵的栅瓣抑制[J]. 上海交通大学学报（自然版）, 2011, 45(03): 340-0344.

CHEN Bi-Xian, JIN Rong-Hong, GENG Jun-Ping, LIANG Xian-Ling. Grating Lobe Suppression for Contiguous Subarray with Uniform Structure[J]. Journal of Shanghai Jiaotong University, 2011, 45(03): 340-0344.

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均匀邻接子阵的栅瓣抑制

Grating Lobe Suppression for Contiguous Subarray with Uniform Structure

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